2\u3001\u4fee\u6539\u6587\u4ef6\u540e\u7f00\u540d\u4e3a\uff1a.jsp
3\u3001\u4f7f\u7528 IDEA \u641c\u7d22\u66ff\u6362.html \u4e3a.jsp(\u5feb\u6377\u952e\uff1aCtrl+Shift+R)<\/p>\n\n\n\n
![\"\"](\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-159.png\")
<\/div><\/figure>\n\n\n\nb)\u62bd\u53d6\u9875\u9762\u4e2d\u76f8\u540c\u7684\u5185\u5bb9<\/h2>\n\n\n\ni. head \u4e2d css\u3001jquery\u3001base \u6807\u7b7e<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:17\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<%\n String basePath = request.getScheme()\n + \":\/\/\"\n + request.getServerName()\n + \":\"\n + request.getServerPort()\n + request.getContextPath()\n + \"\/\";\n%>\n<%--<%=basePath%>--%>\n\n<!-- \u5199base\u4fbf\u7b7e\uff0c\u6c38\u8fdc\u56fa\u5b9a\u76f8\u5bf9\u8def\u5f84\u8df3\u8f6c\u7684\u7ed3\u679c -->\n<base href=\"<%=basePath%>\">\n<link type=\"text\/css\" rel=\"stylesheet\" href=\"static\/css\/style.css\" >\n<script type=\"text\/javascript\" src=\"static\/script\/jquery-3.6.1.js\"><\/script>\n<\/code><\/pre>\n\n\n\n![\"\"](\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\")
<\/div><\/figure>\n\n\n\n<\/div><\/figure>\n\n\n\nii. \u6bcf\u4e2a\u9875\u9762\u7684\u9875\u811a<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:28\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div id=\"bottom\">\n\t\t<span>\n\t\t\t\u5c1a\u7845\u8c37\u4e66\u57ce.Copyright ©2015\n\t\t<\/span>\n<\/div>\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\niii. \u767b\u5f55\u6210\u529f\u540e\u7684\u83dc\u5355<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:11\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div>\n <span>\u6b22\u8fce<span class=\"um_span\">\u97e9\u603b<\/span>\u5149\u4e34\u5c1a\u7845\u8c37\u4e66\u57ce<\/span>\n <a href=\"pages\/order\/order.jsp\">\u6211\u7684\u8ba2\u5355<\/a>\n <a href=\"index.jsp\">\u6ce8\u9500<\/a> \n <a href=\"index.jsp\">\u8fd4\u56de<\/a>\n<\/div><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\niv. manager \u6a21\u5757\u7684\u83dc\u5355<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:33\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div>\n <a href=\"book_manager.jsp\">\u56fe\u4e66\u7ba1\u7406<\/a>\n <a href=\"order_manager.jsp\">\u8ba2\u5355\u7ba1\u7406<\/a>\n <a href=\"index.jsp\">\u8fd4\u56de\u5546\u57ce<\/a>\n<\/div>\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nc)\u767b\u5f55\uff0c\u6ce8\u518c\u9519\u8bef\u63d0\u793a\uff0c\u53ca\u8868\u5355\u56de\u663e<\/h2>\n\n\n\n
\u4ee5\u767b\u5f55\u56de\u663e\u4e3a\u793a\u4f8b\uff1a
Servlet \u7a0b\u5e8f\u7aef\u9700\u8981\u6dfb\u52a0\u56de\u663e\u4fe1\u606f\u5230 Request \u57df\u4e2d<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\nimport top.qaqaq.pojo.User;\nimport top.qaqaq.service.UserService;\nimport top.qaqaq.service.impl.UserServiceImpl;\n\nimport java.io.IOException;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-07 \u4e0a\u5348 11:51\n *\/\npublic class LoginServlet extends HttpServlet {\n\n private UserService userService = new UserServiceImpl();\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n \/\/1. \u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n \/\/ \u8c03\u7528 userService.login() \u767b\u5f55\u5904\u7406\u4e1a\u52a1\n User loginUser = userService.login(new User(null, username, password, null));\n \/\/ \u5982\u679c\u7b49\u4e8enull\uff0c\u8bf4\u660e\u767b\u5f55 \u5931\u8d25\uff01\n if (loginUser == null){\n \/\/ \u628a\u9519\u8bef\u4fe1\u606f\uff0c\u548c\u56de\u663e\u7684\u8868\u5355\u9879\u4fe1\u606f\uff0c\u4fdd\u5b58\u5728Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\");\n req.setAttribute(\"username\", username);\n\n \/\/ \u8df3\u56de\u767b\u5f55\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/login.jsp\").forward(req,resp);\n } else {\n \/\/ \u767b\u5f55 \u6210\u529f\n \/\/ \u8df3\u5230\u6210\u529f\u9875\u9762Login_success.html\n req.getRequestDispatcher(\"\/pages\/user\/login_success.jsp\").forward(req,resp);\n }\n\n\n }\n}\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\njsp \u9875\u9762\uff0c\u9700\u8981\u8f93\u51fa\u56de\u663e\u4fe1\u606f<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nd)BaseServlet \u7684\u62bd\u53d6<\/h2>\n\n\n\n
\u5728\u5b9e\u9645\u7684\u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u4e00\u4e2a\u6a21\u5757\uff0c\u4e00\u822c\u53ea\u4f7f\u7528\u4e00\u4e2a Servlet \u7a0b\u5e8f\u3002<\/p>\n\n\n\n
\u4ee3\u7801\u4f18\u5316\u4e00\uff1a\u4ee3\u7801\u4f18\u5316\uff1a\u5408\u5e76 LoginServlet \u548c RegistServlet \u7a0b\u5e8f\u4e3a UserServlet \u7a0b\u5e8f<\/h3>\n\n\n\n<\/div><\/figure>\n\n\n\nUserServlet \u7a0b\u5e8f\uff1a<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\nimport top.qaqaq.pojo.User;\nimport top.qaqaq.service.UserService;\nimport top.qaqaq.service.impl.UserServiceImpl;\nimport top.qaqaq.utils.WebUtils;\n\nimport java.io.IOException;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0a\u5348 11:26\n *\/\npublic class UserServlet extends BaseServlet {\n\n private UserService userService = new UserServiceImpl();\n\n \/**\n * \u5904\u7406\u767b\u5f55\u7684\u529f\u80fd\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n protected void login(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n \/\/1. \u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n \/\/ \u8c03\u7528 userService.login() \u767b\u5f55\u5904\u7406\u4e1a\u52a1\n User loginUser = userService.login(new User(null, username, password, null));\n \/\/ \u5982\u679c\u7b49\u4e8enull\uff0c\u8bf4\u660e\u767b\u5f55 \u5931\u8d25\uff01\n if (loginUser == null){\n \/\/ \u628a\u9519\u8bef\u4fe1\u606f\uff0c\u548c\u56de\u663e\u7684\u8868\u5355\u9879\u4fe1\u606f\uff0c\u4fdd\u5b58\u5728Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\");\n req.setAttribute(\"username\", username);\n\n \/\/ \u8df3\u56de\u767b\u5f55\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/login.jsp\").forward(req,resp);\n } else {\n \/\/ \u767b\u5f55 \u6210\u529f\n \/\/ \u8df3\u5230\u6210\u529f\u9875\u9762Login_success.html\n req.getRequestDispatcher(\"\/pages\/user\/login_success.jsp\").forward(req,resp);\n }\n }\n\n \/**\n * \u5904\u7406\u6ce8\u518c\u7684\u529f\u80fd\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n protected void regist(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n \/\/ 1\u3001\u83b7\u53d6\u8bf7\u6c42\u7684\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n String email = req.getParameter(\"email\");\n String code = req.getParameter(\"code\");\n\n\/\/ User user = new User();\n\n \/\/\u6d4b\u8bd5\u4ee3\u7801\n\/\/ Map<String, String[]> parameterMap = req.getParameterMap();\n\/\/ for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {\n\/\/ System.out.println(entry.getKey() + \"=\" + Arrays.asList(entry.getValue()));\n\/\/ }\n\n\/\/ WebUtils.copyParamToBean(req.getParameterMap(),user);\n\n User user = WebUtils.copyParamToBean(req.getParameterMap(), new User());\n\n\n \/\/ 2\u3001\u68c0\u67e5 \u9a8c\u8bc1\u7801\u662f\u5426\u6b63\u786e === \u5199\u6b7b\uff0c\u8981\u6c42\u9a8c\u8bc1\u7801\u4e3a\uff1aabcde\n if (\"abcde\".equalsIgnoreCase(code)) {\n \/\/ 3\u3001\u68c0\u67e5 \u7528\u6237\u540d\u662f\u5426\u53ef\u7528\n if (userService.existsUsername(username)) {\n System.out.println(\"\u7528\u6237\u540d[\" + username + \"]\u5df2\u5b58\u5728\");\n\n \/\/ \u628a\u56de\u663e\u4fe1\u606f\uff0c\u4fdd\u5b58\u5230Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u5df2\u5b58\u5728\uff01\uff01\");\n req.setAttribute(\"username\", username);\n req.setAttribute(\"email\", email);\n\n \/\/ \u8df3\u56de\u6ce8\u518c\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/regist.jsp\").forward(req, resp);\n } else {\n \/\/ \u53ef\u7528\n \/\/ \u8c03\u7528 Sservice \u4fdd\u5b58\u5230\u6570\u636e\u5e93\n userService.registUser(new User(null,username,password,email));\n\n \/\/ \u8df3\u5230\u6ce8\u518c\u6210\u529f\u9875\u9762 regist_success.jsp\n req.getRequestDispatcher(\"\/pages\/user\/regist_success.jsp\").forward(req, resp);\n }\n } else {\n \/\/ \u628a\u56de\u663e\u4fe1\u606f\uff0c\u4fdd\u5b58\u5230Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u9a8c\u8bc1\u7801\u9519\u8bef\uff01\uff01\");\n req.setAttribute(\"username\", username);\n req.setAttribute(\"email\", email);\n\n System.out.println(\"\u9a8c\u8bc1\u7801[\" + code + \"]\u9519\u8bef\");\n req.getRequestDispatcher(\"\/pages\/user\/regist.jsp\").forward(req, resp);\n }\n }\n}\n<\/code><\/pre>\n\n\n\n\u8fd8\u8981\u7ed9 login.jsp \u6dfb\u52a0\u9690\u85cf\u57df\u548c\u4fee\u6539\u8bf7\u6c42\u5730\u5740<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u7ed9 regist.jsp \u9875\u9762\u6dfb\u52a0\u9690\u85cf\u57df action\uff0c\u548c\u4fee\u6539\u8bf7\u6c42\u5730\u5740<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u6ce8\u518c\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n\t<script type=\"text\/javascript\">\n\t\t\/\/ \u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u4e4b\u540e\n\t\t$(function () {\n\t\t\t\/\/ \u7ed9\u6ce8\u518c\u7ed1\u5b9a\u5355\u51fb\u4e8b\u4ef6\n\t\t\t$(\"#sub_btn\").click(function () {\n\t\t\t\t\/\/ \u9a8c\u8bc1\u7528\u6237\u540d\uff1a\u5fc5\u987b\u7531\u5b57\u6bcd\uff0c\u6570\u5b57\u4e0b\u5212\u7ebf\u7ec4\u6210\uff0c\u5e76\u4e14\u957f\u5ea6\u4e3a 5 \u5230 12 \u4f4d\n\t\t\t\t\/\/1 \u83b7\u53d6\u7528\u6237\u540d\u8f93\u5165\u6846\u91cc\u7684\u5185\u5bb9\n\t\t\t\tvar usernameText = $(\"#username\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar usernamePatt = \/^\\w{5,12}$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\n\t\t\t\tif (!usernamePatt.test(usernameText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\u7ed3\u679c\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u7528\u6237\u540d\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u5bc6\u7801\uff1a\u5fc5\u987b\u7531\u5b57\u6bcd\uff0c\u6570\u5b57\u4e0b\u5212\u7ebf\u7ec4\u6210\uff0c\u5e76\u4e14\u957f\u5ea6\u4e3a 5 \u5230 12 \u4f4d\n\t\t\t\t\/\/1 \u83b7\u53d6\u7528\u6237\u540d\u8f93\u5165\u6846\u91cc\u7684\u5185\u5bb9\n\t\t\t\tvar passwordText = $(\"#password\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar passwordPatt = \/^\\w{5,12}$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\n\t\t\t\tif (!passwordPatt.test(passwordText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\u7ed3\u679c\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u5bc6\u7801\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u786e\u8ba4\u5bc6\u7801\uff1a\u548c\u5bc6\u7801\u76f8\u540c\n\t\t\t\t\/\/1 \u83b7\u53d6\u786e\u8ba4\u5bc6\u7801\u5185\u5bb9\n\t\t\t\tvar repwdText = $(\"#repwd\").val();\n\t\t\t\t\/\/2 \u548c\u5bc6\u7801\u76f8\u6bd4\u8f83\n\t\t\t\tif (repwdText != passwordText){\n\t\t\t\t\t\/\/3 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u786e\u8ba4\u5bc6\u7801\u548c\u5bc6\u7801\u4e0d\u4e00\u81f4\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u90ae\u7bb1\u9a8c\u8bc1\uff1axxxxx@xxx.com\n\t\t\t\t\/\/1 \u83b7\u53d6\u90ae\u7bb1\u91cc\u7684\u5185\u540c\n\t\t\t\tvar emailText = $(\"#email\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar emailPatt = \/^[a-z\\d]+(\\.[a-z\\d]+)*@([\\da-z](-[\\da-z])?)+(\\.{1,2}[a-z]+)+$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\u662f\u5426\u5408\u6cd5\n\t\t\t\tif (!emailPatt.test(emailText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u90ae\u7bb1\u683c\u5f0f\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u7801\uff1a\u73b0\u5728\u53ea\u9700\u8981\u9a8c\u8bc1\u7528\u6237\u5df2\u8f93\u5165\u3002\u56e0\u4e3a\u8fd8\u6ca1\u8bb2\u5230\u670d\u52a1\u5668\u3002\u9a8c\u8bc1\u7801\u751f\u6210\u3002\n\t\t\t\tvar codeText = $(\"#code\").val();\n\n\t\t\t\t\/\/ \u53bb\u6389\u9a8c\u8bc1\u7801\u524d\u540e\u7a7a\u683c\n\t\t\t\t\/\/ alert(\"\u53bb\u7a7a\u683c\u524d\uff1a[\" + codeText + \"]\");\n\t\t\t\tcodeText = $.trim(codeText);\n\t\t\t\t\/\/ alert(\"\u53bb\u7a7a\u683c\u524d\uff1a[\" + codeText + \"]\");\n\n\t\t\t\tif (codeText == null || codeText == \"\"){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u9a8c\u8bc1\u7801\u4e0d\u80fd\u4e3a\u7a7a\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t$(\"span.errorMsg\").text(\"\");\n\t\t\t});\n\t\t});\n\t<\/script>\n<style type=\"text\/css\">\n\t.login_form{\n\t\theight:420px;\n\t\tmargin-top: 25px;\n\t}\n\t\n<\/style>\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\t\t\t\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u6ce8\u518c<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u6ce8\u518c\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"regist\">\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\" id=\"username\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"password\" id=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u786e\u8ba4\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u786e\u8ba4\u5bc6\u7801\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"repwd\" id=\"repwd\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7535\u5b50\u90ae\u4ef6\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u90ae\u7bb1\u5730\u5740\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"email\")==null?\"\":request.getAttribute(\"email\")%>\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"email\" id=\"email\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u9a8c\u8bc1\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" name=\"code\" style=\"width: 150px;\" id=\"code\"\/>\n\t\t\t\t\t\t\t\t\t<img alt=\"\" src=\"static\/img\/code.bmp\" style=\"float: right; margin-right: 40px\">\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u6ce8\u518c\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u4f18\u5316\u4ee3\u7801\u4e8c\uff1a\u4f7f\u7528\u53cd\u5c04\u4f18\u5316\u5927\u91cf else if \u4ee3\u7801\uff1a<\/h3>\n\n\n\npackage top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\n\nimport java.io.IOException;\nimport java.lang.reflect.InvocationTargetException;\nimport java.lang.reflect.Method;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 12:28\n *\/\npublic abstract class BaseServlet extends HttpServlet {\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n String action = req.getParameter(\"action\");\n\n\/\/ System.out.println(acction);\n\n \/\/\u65b9\u6cd5\u4e00\uff1a\u5199\u4e00\u4e2a\u65b9\u6cd5\u5224\u65ad\u4e00\u6b21\n\/\/ if (\"login\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u767b\u5f55\u7684\u9700\u6c42\");\n\/\/ login(req,resp);\n\/\/ } else if (\"regist\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u6ce8\u518c\u7684\u9700\u6c42\");\n\/\/ regist(req,resp);\n\/\/ }\n\n \/\/\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7\u53cd\u5c04\u52a8\u6001\u83b7\u53d6\n try {\n \/\/ \u901a\u8fc7action\u4e1a\u52a1\u9274\u522b\u5b57\u7b26\u4e32\uff0c\u83b7\u53d6\u76f8\u5e94\u7684\u4e1a\u52a1 \u65b9\u6cd5\u53cd\u5c04\u5bf9\u8c61\n Method method = this.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class);\n\n\/\/ System.out.println(method);\n\n \/\/ \u8c03\u7528\u76ee\u6807\u4e1a\u52a1 \u65b9\u6cd5\n method.invoke(this,req,resp);\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n } catch (NoSuchMethodException e) {\n e.printStackTrace();\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u4ee3\u7801\u4f18\u5316\u4e09\uff1a\u62bd\u53d6 BaseServlet \u7a0b\u5e8f\u3002<\/h3>\n\n\n\n<\/div><\/figure>\n\n\n\nBaseServlet \u7a0b\u5e8f\u4ee3\u7801\uff1a<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\n\nimport java.io.IOException;\nimport java.lang.reflect.InvocationTargetException;\nimport java.lang.reflect.Method;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 12:28\n *\/\npublic abstract class BaseServlet extends HttpServlet {\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n String action = req.getParameter(\"action\");\n\n\/\/ System.out.println(acction);\n\n \/\/\u65b9\u6cd5\u4e00\uff1a\u5199\u4e00\u4e2a\u65b9\u6cd5\u5224\u65ad\u4e00\u6b21\n\/\/ if (\"login\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u767b\u5f55\u7684\u9700\u6c42\");\n\/\/ login(req,resp);\n\/\/ } else if (\"regist\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u6ce8\u518c\u7684\u9700\u6c42\");\n\/\/ regist(req,resp);\n\/\/ }\n\n \/\/\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7\u53cd\u5c04\u52a8\u6001\u83b7\u53d6\n try {\n \/\/ \u901a\u8fc7action\u4e1a\u52a1\u9274\u522b\u5b57\u7b26\u4e32\uff0c\u83b7\u53d6\u76f8\u5e94\u7684\u4e1a\u52a1 \u65b9\u6cd5\u53cd\u5c04\u5bf9\u8c61\n Method method = this.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class);\n\n\/\/ System.out.println(method);\n\n \/\/ \u8c03\u7528\u76ee\u6807\u4e1a\u52a1 \u65b9\u6cd5\n method.invoke(this,req,resp);\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n } catch (NoSuchMethodException e) {\n e.printStackTrace();\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\n\u4fee\u6539 UserServlet \u7a0b\u5e8f\u7ee7\u627f BaseServlet \u7a0b\u5e8f\u3002<\/p>\n\n\n\n
public class UserServlet extends BaseServlet {\n\n private UserService userService = new UserServiceImpl();\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\ne)\u6570\u636e\u7684\u5c01\u88c5\u548c\u62bd\u53d6 BeanUtils \u7684\u4f7f\u7528<\/h2>\n\n\n\n
BeanUtils \u5de5\u5177\u7c7b\uff0c\u5b83\u53ef\u4ee5\u4e00\u6b21\u6027\u7684\u628a\u6240\u6709\u8bf7\u6c42\u7684\u53c2\u6570\u6ce8\u5165\u5230 JavaBean \u4e2d\u3002
BeanUtils \u5de5\u5177\u7c7b\uff0c\u7ecf\u5e38\u7528\u4e8e\u628a Map \u4e2d\u7684\u503c\u6ce8\u5165\u5230 JavaBean \u4e2d\uff0c\u6216\u8005\u662f\u5bf9\u8c61\u5c5e\u6027\u503c\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002<\/p>\n\n\n\n
BeanUtils \u5b83\u4e0d\u662f Jdk \u7684\u7c7b\u3002\u800c\u662f\u7b2c\u4e09\u65b9\u7684\u5de5\u5177\u7c7b\u3002\u6240\u4ee5\u9700\u8981\u5bfc\u5305\u3002<\/p>\n\n\n\n
1\u3001\u5bfc\u5165\u9700\u8981\u7684 jar \u5305\uff1a
commons-beanutils-1.9.4.jar
commons-logging-1.2.jar<\/p>\n\n\n\n
commons-collections-3.2.2.jar<\/p>\n\n\n\n
2\u3001\u7f16\u5199 WebUtils \u5de5\u5177\u7c7b\u4f7f\u7528\uff1a<\/p>\n\n\n\n
WebUtils \u5de5\u5177\u7c7b\uff1a<\/p>\n\n\n\n
package top.qaqaq.utils;\n\nimport org.apache.commons.beanutils.BeanUtils;\n\nimport java.lang.reflect.InvocationTargetException;\nimport java.util.Map;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 2:11\n *\/\npublic class WebUtils {\n\n \/**\n * \u628aMap\u4e2d\u7684\u503c\u6ce8\u5165\u5230\u5bf9\u5e94\u7684JavaBean\u5c5e\u6027\u4e2d\u3002\n * @param value\n * @param bean\n * \u5982\u679c\u5f62\u53c2\u5199\u6210HttpServletRequest DAO\u5c42\u548cService\u5c42\u6ca1\u6709\u8fd9\u4e2aAPI \u4e14web\u5c42\u8026\u5408\u5ea6\u9ad8\uff0c\u4ee3\u7801\u4e0d\u4f18\u96c5\n * DAO\u5c42\n * Service\u5c42\n * Web\u5c42\n *\/\n public static <T> T copyParamToBean(Map value, T bean) {\n try {\n System.out.println(\"\u6ce8\u5165\u4e4b\u524d\uff1a\" + bean);\n BeanUtils.populate(bean,value);\n System.out.println(\"\u6ce8\u5165\u4e4b\u540e\uff1a\" + bean);\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n }\n return bean;\n }\n}\n<\/code><\/pre>\n\n\n\n\u4e66\u57ce-\u7b2c\u56db\u9636\u6bb5\u3002\u4f7f\u7528 EL \u8868\u8fbe\u5f0f\u4fee\u6539\u8868\u5355\u56de\u663e<\/h1>\n\n\n\n
\u4ee5\u767b\u5f55\u4e3a\u793a\u4f8b\uff1a<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n<%--\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>--%>\n\t\t\t\t\t\t\t\t\t${empty requestScope.msg ? \"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\" : requestScope.msg}\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n<%--\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"--%>\n\t\t\t\t\t\t\t\t\t\t value=\"${requestScope.username}\"\n\t\t\t\t\t\t\t\t\t\/>\n\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nweb.xml<\/h1>\n\n\n\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<web-app xmlns=\"https:\/\/jakarta.ee\/xml\/ns\/jakartaee\"\n xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xsi:schemaLocation=\"https:\/\/jakarta.ee\/xml\/ns\/jakartaee https:\/\/jakarta.ee\/xml\/ns\/jakartaee\/web-app_5_0.xsd\"\n version=\"5.0\">\n\n<!-- <servlet>-->\n<!-- <servlet-name>RegistServlet<\/servlet-name>-->\n<!-- <servlet-class>top.qaqaq.web.RegistServlet<\/servlet-class>-->\n<!-- <\/servlet>-->\n<!-- <servlet-mapping>-->\n<!-- <servlet-name>RegistServlet<\/servlet-name>-->\n<!-- <url-pattern>\/registServlet<\/url-pattern>-->\n<!-- <\/servlet-mapping>-->\n\n<!-- <servlet>-->\n<!-- <servlet-name>LoginServlet<\/servlet-name>-->\n<!-- <servlet-class>top.qaqaq.web.LoginServlet<\/servlet-class>-->\n<!-- <\/servlet>-->\n<!-- <servlet-mapping>-->\n<!-- <servlet-name>LoginServlet<\/servlet-name>-->\n<!-- <url-pattern>\/loginServlet<\/url-pattern>-->\n<!-- <\/servlet-mapping>-->\n\n <servlet>\n <servlet-name>UserServlet<\/servlet-name>\n <servlet-class>top.qaqaq.web.UserServlet<\/servlet-class>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>UserServlet<\/servlet-name>\n <url-pattern>\/userServlet<\/url-pattern>\n <\/servlet-mapping>\n<\/web-app><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u4e66\u57ce\u9879\u76ee-\u7b2c\u4e09\u9636\u6bb5\uff1a\u4fee\u6539\u6240\u6709html\u9875\u9762\u4e3ajsp\u9875\u9762\u3001\u4e66\u57ce\u9879\u76ee-\u7b2c\u4e09\u9636\u6bb5\uff1a\u62bd\u53d6\u6240\u6709jsp\u9875\u9762\u4e2d\u516c\u5171\u5185\u5bb9\u3001\u4e66\u57ce\u9879 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[61],"class_list":["post-2428","post","type-post","status-publish","format-standard","hentry","category-javaweb-code","tag-javaweb"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2428"}],"version-history":[{"count":7,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428\/revisions"}],"predecessor-version":[{"id":2715,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428\/revisions\/2715"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:17\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<%\n String basePath = request.getScheme()\n + \":\/\/\"\n + request.getServerName()\n + \":\"\n + request.getServerPort()\n + request.getContextPath()\n + \"\/\";\n%>\n<%--<%=basePath%>--%>\n\n<!-- \u5199base\u4fbf\u7b7e\uff0c\u6c38\u8fdc\u56fa\u5b9a\u76f8\u5bf9\u8def\u5f84\u8df3\u8f6c\u7684\u7ed3\u679c -->\n<base href=\"<%=basePath%>\">\n<link type=\"text\/css\" rel=\"stylesheet\" href=\"static\/css\/style.css\" >\n<script type=\"text\/javascript\" src=\"static\/script\/jquery-3.6.1.js\"><\/script>\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n<\/div><\/figure>\n\n\n\nii. \u6bcf\u4e2a\u9875\u9762\u7684\u9875\u811a<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:28\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div id=\"bottom\">\n\t\t<span>\n\t\t\t\u5c1a\u7845\u8c37\u4e66\u57ce.Copyright ©2015\n\t\t<\/span>\n<\/div>\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\niii. \u767b\u5f55\u6210\u529f\u540e\u7684\u83dc\u5355<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:11\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div>\n <span>\u6b22\u8fce<span class=\"um_span\">\u97e9\u603b<\/span>\u5149\u4e34\u5c1a\u7845\u8c37\u4e66\u57ce<\/span>\n <a href=\"pages\/order\/order.jsp\">\u6211\u7684\u8ba2\u5355<\/a>\n <a href=\"index.jsp\">\u6ce8\u9500<\/a> \n <a href=\"index.jsp\">\u8fd4\u56de<\/a>\n<\/div><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\niv. manager \u6a21\u5757\u7684\u83dc\u5355<\/h3>\n\n\n\n<%--\n Created by IntelliJ IDEA.\n User: ZRich\n Date: 2022\/12\/9\n Time: \u4e0b\u5348 5:33\n To change this template use File | Settings | File Templates.\n--%>\n<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n\n<div>\n <a href=\"book_manager.jsp\">\u56fe\u4e66\u7ba1\u7406<\/a>\n <a href=\"order_manager.jsp\">\u8ba2\u5355\u7ba1\u7406<\/a>\n <a href=\"index.jsp\">\u8fd4\u56de\u5546\u57ce<\/a>\n<\/div>\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nc)\u767b\u5f55\uff0c\u6ce8\u518c\u9519\u8bef\u63d0\u793a\uff0c\u53ca\u8868\u5355\u56de\u663e<\/h2>\n\n\n\n
\u4ee5\u767b\u5f55\u56de\u663e\u4e3a\u793a\u4f8b\uff1a
Servlet \u7a0b\u5e8f\u7aef\u9700\u8981\u6dfb\u52a0\u56de\u663e\u4fe1\u606f\u5230 Request \u57df\u4e2d<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\nimport top.qaqaq.pojo.User;\nimport top.qaqaq.service.UserService;\nimport top.qaqaq.service.impl.UserServiceImpl;\n\nimport java.io.IOException;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-07 \u4e0a\u5348 11:51\n *\/\npublic class LoginServlet extends HttpServlet {\n\n private UserService userService = new UserServiceImpl();\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n \/\/1. \u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n \/\/ \u8c03\u7528 userService.login() \u767b\u5f55\u5904\u7406\u4e1a\u52a1\n User loginUser = userService.login(new User(null, username, password, null));\n \/\/ \u5982\u679c\u7b49\u4e8enull\uff0c\u8bf4\u660e\u767b\u5f55 \u5931\u8d25\uff01\n if (loginUser == null){\n \/\/ \u628a\u9519\u8bef\u4fe1\u606f\uff0c\u548c\u56de\u663e\u7684\u8868\u5355\u9879\u4fe1\u606f\uff0c\u4fdd\u5b58\u5728Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\");\n req.setAttribute(\"username\", username);\n\n \/\/ \u8df3\u56de\u767b\u5f55\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/login.jsp\").forward(req,resp);\n } else {\n \/\/ \u767b\u5f55 \u6210\u529f\n \/\/ \u8df3\u5230\u6210\u529f\u9875\u9762Login_success.html\n req.getRequestDispatcher(\"\/pages\/user\/login_success.jsp\").forward(req,resp);\n }\n\n\n }\n}\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\njsp \u9875\u9762\uff0c\u9700\u8981\u8f93\u51fa\u56de\u663e\u4fe1\u606f<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nd)BaseServlet \u7684\u62bd\u53d6<\/h2>\n\n\n\n
\u5728\u5b9e\u9645\u7684\u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u4e00\u4e2a\u6a21\u5757\uff0c\u4e00\u822c\u53ea\u4f7f\u7528\u4e00\u4e2a Servlet \u7a0b\u5e8f\u3002<\/p>\n\n\n\n
\u4ee3\u7801\u4f18\u5316\u4e00\uff1a\u4ee3\u7801\u4f18\u5316\uff1a\u5408\u5e76 LoginServlet \u548c RegistServlet \u7a0b\u5e8f\u4e3a UserServlet \u7a0b\u5e8f<\/h3>\n\n\n\n<\/div><\/figure>\n\n\n\nUserServlet \u7a0b\u5e8f\uff1a<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\nimport top.qaqaq.pojo.User;\nimport top.qaqaq.service.UserService;\nimport top.qaqaq.service.impl.UserServiceImpl;\nimport top.qaqaq.utils.WebUtils;\n\nimport java.io.IOException;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0a\u5348 11:26\n *\/\npublic class UserServlet extends BaseServlet {\n\n private UserService userService = new UserServiceImpl();\n\n \/**\n * \u5904\u7406\u767b\u5f55\u7684\u529f\u80fd\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n protected void login(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n \/\/1. \u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n \/\/ \u8c03\u7528 userService.login() \u767b\u5f55\u5904\u7406\u4e1a\u52a1\n User loginUser = userService.login(new User(null, username, password, null));\n \/\/ \u5982\u679c\u7b49\u4e8enull\uff0c\u8bf4\u660e\u767b\u5f55 \u5931\u8d25\uff01\n if (loginUser == null){\n \/\/ \u628a\u9519\u8bef\u4fe1\u606f\uff0c\u548c\u56de\u663e\u7684\u8868\u5355\u9879\u4fe1\u606f\uff0c\u4fdd\u5b58\u5728Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\");\n req.setAttribute(\"username\", username);\n\n \/\/ \u8df3\u56de\u767b\u5f55\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/login.jsp\").forward(req,resp);\n } else {\n \/\/ \u767b\u5f55 \u6210\u529f\n \/\/ \u8df3\u5230\u6210\u529f\u9875\u9762Login_success.html\n req.getRequestDispatcher(\"\/pages\/user\/login_success.jsp\").forward(req,resp);\n }\n }\n\n \/**\n * \u5904\u7406\u6ce8\u518c\u7684\u529f\u80fd\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n protected void regist(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n \/\/ 1\u3001\u83b7\u53d6\u8bf7\u6c42\u7684\u53c2\u6570\n String username = req.getParameter(\"username\");\n String password = req.getParameter(\"password\");\n String email = req.getParameter(\"email\");\n String code = req.getParameter(\"code\");\n\n\/\/ User user = new User();\n\n \/\/\u6d4b\u8bd5\u4ee3\u7801\n\/\/ Map<String, String[]> parameterMap = req.getParameterMap();\n\/\/ for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {\n\/\/ System.out.println(entry.getKey() + \"=\" + Arrays.asList(entry.getValue()));\n\/\/ }\n\n\/\/ WebUtils.copyParamToBean(req.getParameterMap(),user);\n\n User user = WebUtils.copyParamToBean(req.getParameterMap(), new User());\n\n\n \/\/ 2\u3001\u68c0\u67e5 \u9a8c\u8bc1\u7801\u662f\u5426\u6b63\u786e === \u5199\u6b7b\uff0c\u8981\u6c42\u9a8c\u8bc1\u7801\u4e3a\uff1aabcde\n if (\"abcde\".equalsIgnoreCase(code)) {\n \/\/ 3\u3001\u68c0\u67e5 \u7528\u6237\u540d\u662f\u5426\u53ef\u7528\n if (userService.existsUsername(username)) {\n System.out.println(\"\u7528\u6237\u540d[\" + username + \"]\u5df2\u5b58\u5728\");\n\n \/\/ \u628a\u56de\u663e\u4fe1\u606f\uff0c\u4fdd\u5b58\u5230Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u7528\u6237\u540d\u5df2\u5b58\u5728\uff01\uff01\");\n req.setAttribute(\"username\", username);\n req.setAttribute(\"email\", email);\n\n \/\/ \u8df3\u56de\u6ce8\u518c\u9875\u9762\n req.getRequestDispatcher(\"\/pages\/user\/regist.jsp\").forward(req, resp);\n } else {\n \/\/ \u53ef\u7528\n \/\/ \u8c03\u7528 Sservice \u4fdd\u5b58\u5230\u6570\u636e\u5e93\n userService.registUser(new User(null,username,password,email));\n\n \/\/ \u8df3\u5230\u6ce8\u518c\u6210\u529f\u9875\u9762 regist_success.jsp\n req.getRequestDispatcher(\"\/pages\/user\/regist_success.jsp\").forward(req, resp);\n }\n } else {\n \/\/ \u628a\u56de\u663e\u4fe1\u606f\uff0c\u4fdd\u5b58\u5230Request\u57df\u4e2d\n req.setAttribute(\"msg\",\"\u9a8c\u8bc1\u7801\u9519\u8bef\uff01\uff01\");\n req.setAttribute(\"username\", username);\n req.setAttribute(\"email\", email);\n\n System.out.println(\"\u9a8c\u8bc1\u7801[\" + code + \"]\u9519\u8bef\");\n req.getRequestDispatcher(\"\/pages\/user\/regist.jsp\").forward(req, resp);\n }\n }\n}\n<\/code><\/pre>\n\n\n\n\u8fd8\u8981\u7ed9 login.jsp \u6dfb\u52a0\u9690\u85cf\u57df\u548c\u4fee\u6539\u8bf7\u6c42\u5730\u5740<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u7ed9 regist.jsp \u9875\u9762\u6dfb\u52a0\u9690\u85cf\u57df action\uff0c\u548c\u4fee\u6539\u8bf7\u6c42\u5730\u5740<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u6ce8\u518c\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n\t<script type=\"text\/javascript\">\n\t\t\/\/ \u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u4e4b\u540e\n\t\t$(function () {\n\t\t\t\/\/ \u7ed9\u6ce8\u518c\u7ed1\u5b9a\u5355\u51fb\u4e8b\u4ef6\n\t\t\t$(\"#sub_btn\").click(function () {\n\t\t\t\t\/\/ \u9a8c\u8bc1\u7528\u6237\u540d\uff1a\u5fc5\u987b\u7531\u5b57\u6bcd\uff0c\u6570\u5b57\u4e0b\u5212\u7ebf\u7ec4\u6210\uff0c\u5e76\u4e14\u957f\u5ea6\u4e3a 5 \u5230 12 \u4f4d\n\t\t\t\t\/\/1 \u83b7\u53d6\u7528\u6237\u540d\u8f93\u5165\u6846\u91cc\u7684\u5185\u5bb9\n\t\t\t\tvar usernameText = $(\"#username\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar usernamePatt = \/^\\w{5,12}$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\n\t\t\t\tif (!usernamePatt.test(usernameText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\u7ed3\u679c\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u7528\u6237\u540d\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u5bc6\u7801\uff1a\u5fc5\u987b\u7531\u5b57\u6bcd\uff0c\u6570\u5b57\u4e0b\u5212\u7ebf\u7ec4\u6210\uff0c\u5e76\u4e14\u957f\u5ea6\u4e3a 5 \u5230 12 \u4f4d\n\t\t\t\t\/\/1 \u83b7\u53d6\u7528\u6237\u540d\u8f93\u5165\u6846\u91cc\u7684\u5185\u5bb9\n\t\t\t\tvar passwordText = $(\"#password\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar passwordPatt = \/^\\w{5,12}$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\n\t\t\t\tif (!passwordPatt.test(passwordText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\u7ed3\u679c\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u5bc6\u7801\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u786e\u8ba4\u5bc6\u7801\uff1a\u548c\u5bc6\u7801\u76f8\u540c\n\t\t\t\t\/\/1 \u83b7\u53d6\u786e\u8ba4\u5bc6\u7801\u5185\u5bb9\n\t\t\t\tvar repwdText = $(\"#repwd\").val();\n\t\t\t\t\/\/2 \u548c\u5bc6\u7801\u76f8\u6bd4\u8f83\n\t\t\t\tif (repwdText != passwordText){\n\t\t\t\t\t\/\/3 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u786e\u8ba4\u5bc6\u7801\u548c\u5bc6\u7801\u4e0d\u4e00\u81f4\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u90ae\u7bb1\u9a8c\u8bc1\uff1axxxxx@xxx.com\n\t\t\t\t\/\/1 \u83b7\u53d6\u90ae\u7bb1\u91cc\u7684\u5185\u540c\n\t\t\t\tvar emailText = $(\"#email\").val();\n\t\t\t\t\/\/2 \u521b\u5efa\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8c61\n\t\t\t\tvar emailPatt = \/^[a-z\\d]+(\\.[a-z\\d]+)*@([\\da-z](-[\\da-z])?)+(\\.{1,2}[a-z]+)+$\/;\n\t\t\t\t\/\/3 \u4f7f\u7528test\u65b9\u6cd5\u9a8c\u8bc1\u662f\u5426\u5408\u6cd5\n\t\t\t\tif (!emailPatt.test(emailText)){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u90ae\u7bb1\u683c\u5f0f\u4e0d\u5408\u6cd5\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t\/\/ \u9a8c\u8bc1\u7801\uff1a\u73b0\u5728\u53ea\u9700\u8981\u9a8c\u8bc1\u7528\u6237\u5df2\u8f93\u5165\u3002\u56e0\u4e3a\u8fd8\u6ca1\u8bb2\u5230\u670d\u52a1\u5668\u3002\u9a8c\u8bc1\u7801\u751f\u6210\u3002\n\t\t\t\tvar codeText = $(\"#code\").val();\n\n\t\t\t\t\/\/ \u53bb\u6389\u9a8c\u8bc1\u7801\u524d\u540e\u7a7a\u683c\n\t\t\t\t\/\/ alert(\"\u53bb\u7a7a\u683c\u524d\uff1a[\" + codeText + \"]\");\n\t\t\t\tcodeText = $.trim(codeText);\n\t\t\t\t\/\/ alert(\"\u53bb\u7a7a\u683c\u524d\uff1a[\" + codeText + \"]\");\n\n\t\t\t\tif (codeText == null || codeText == \"\"){\n\t\t\t\t\t\/\/4 \u63d0\u793a\u7528\u6237\n\t\t\t\t\t$(\"span.errorMsg\").text(\"\u9a8c\u8bc1\u7801\u4e0d\u80fd\u4e3a\u7a7a\uff01\");\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\t$(\"span.errorMsg\").text(\"\");\n\t\t\t});\n\t\t});\n\t<\/script>\n<style type=\"text\/css\">\n\t.login_form{\n\t\theight:420px;\n\t\tmargin-top: 25px;\n\t}\n\t\n<\/style>\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\t\t\t\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u6ce8\u518c<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u6ce8\u518c\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\":request.getAttribute(\"msg\")%>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"regist\">\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\" id=\"username\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"password\" id=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u786e\u8ba4\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u786e\u8ba4\u5bc6\u7801\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"repwd\" id=\"repwd\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7535\u5b50\u90ae\u4ef6\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u90ae\u7bb1\u5730\u5740\"\n\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"email\")==null?\"\":request.getAttribute(\"email\")%>\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"email\" id=\"email\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u9a8c\u8bc1\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" name=\"code\" style=\"width: 150px;\" id=\"code\"\/>\n\t\t\t\t\t\t\t\t\t<img alt=\"\" src=\"static\/img\/code.bmp\" style=\"float: right; margin-right: 40px\">\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u6ce8\u518c\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u4f18\u5316\u4ee3\u7801\u4e8c\uff1a\u4f7f\u7528\u53cd\u5c04\u4f18\u5316\u5927\u91cf else if \u4ee3\u7801\uff1a<\/h3>\n\n\n\npackage top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\n\nimport java.io.IOException;\nimport java.lang.reflect.InvocationTargetException;\nimport java.lang.reflect.Method;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 12:28\n *\/\npublic abstract class BaseServlet extends HttpServlet {\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n String action = req.getParameter(\"action\");\n\n\/\/ System.out.println(acction);\n\n \/\/\u65b9\u6cd5\u4e00\uff1a\u5199\u4e00\u4e2a\u65b9\u6cd5\u5224\u65ad\u4e00\u6b21\n\/\/ if (\"login\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u767b\u5f55\u7684\u9700\u6c42\");\n\/\/ login(req,resp);\n\/\/ } else if (\"regist\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u6ce8\u518c\u7684\u9700\u6c42\");\n\/\/ regist(req,resp);\n\/\/ }\n\n \/\/\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7\u53cd\u5c04\u52a8\u6001\u83b7\u53d6\n try {\n \/\/ \u901a\u8fc7action\u4e1a\u52a1\u9274\u522b\u5b57\u7b26\u4e32\uff0c\u83b7\u53d6\u76f8\u5e94\u7684\u4e1a\u52a1 \u65b9\u6cd5\u53cd\u5c04\u5bf9\u8c61\n Method method = this.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class);\n\n\/\/ System.out.println(method);\n\n \/\/ \u8c03\u7528\u76ee\u6807\u4e1a\u52a1 \u65b9\u6cd5\n method.invoke(this,req,resp);\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n } catch (NoSuchMethodException e) {\n e.printStackTrace();\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\n\u4ee3\u7801\u4f18\u5316\u4e09\uff1a\u62bd\u53d6 BaseServlet \u7a0b\u5e8f\u3002<\/h3>\n\n\n\n<\/div><\/figure>\n\n\n\nBaseServlet \u7a0b\u5e8f\u4ee3\u7801\uff1a<\/p>\n\n\n\n
package top.qaqaq.web;\n\nimport jakarta.servlet.ServletException;\nimport jakarta.servlet.http.HttpServlet;\nimport jakarta.servlet.http.HttpServletRequest;\nimport jakarta.servlet.http.HttpServletResponse;\n\nimport java.io.IOException;\nimport java.lang.reflect.InvocationTargetException;\nimport java.lang.reflect.Method;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 12:28\n *\/\npublic abstract class BaseServlet extends HttpServlet {\n\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n\n String action = req.getParameter(\"action\");\n\n\/\/ System.out.println(acction);\n\n \/\/\u65b9\u6cd5\u4e00\uff1a\u5199\u4e00\u4e2a\u65b9\u6cd5\u5224\u65ad\u4e00\u6b21\n\/\/ if (\"login\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u767b\u5f55\u7684\u9700\u6c42\");\n\/\/ login(req,resp);\n\/\/ } else if (\"regist\".equals(action)) {\n\/\/ \/\/System.out.println(\"\u5904\u7406\u6ce8\u518c\u7684\u9700\u6c42\");\n\/\/ regist(req,resp);\n\/\/ }\n\n \/\/\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7\u53cd\u5c04\u52a8\u6001\u83b7\u53d6\n try {\n \/\/ \u901a\u8fc7action\u4e1a\u52a1\u9274\u522b\u5b57\u7b26\u4e32\uff0c\u83b7\u53d6\u76f8\u5e94\u7684\u4e1a\u52a1 \u65b9\u6cd5\u53cd\u5c04\u5bf9\u8c61\n Method method = this.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class);\n\n\/\/ System.out.println(method);\n\n \/\/ \u8c03\u7528\u76ee\u6807\u4e1a\u52a1 \u65b9\u6cd5\n method.invoke(this,req,resp);\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n } catch (NoSuchMethodException e) {\n e.printStackTrace();\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\n\u4fee\u6539 UserServlet \u7a0b\u5e8f\u7ee7\u627f BaseServlet \u7a0b\u5e8f\u3002<\/p>\n\n\n\n
public class UserServlet extends BaseServlet {\n\n private UserService userService = new UserServiceImpl();\n<\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\ne)\u6570\u636e\u7684\u5c01\u88c5\u548c\u62bd\u53d6 BeanUtils \u7684\u4f7f\u7528<\/h2>\n\n\n\n
BeanUtils \u5de5\u5177\u7c7b\uff0c\u5b83\u53ef\u4ee5\u4e00\u6b21\u6027\u7684\u628a\u6240\u6709\u8bf7\u6c42\u7684\u53c2\u6570\u6ce8\u5165\u5230 JavaBean \u4e2d\u3002
BeanUtils \u5de5\u5177\u7c7b\uff0c\u7ecf\u5e38\u7528\u4e8e\u628a Map \u4e2d\u7684\u503c\u6ce8\u5165\u5230 JavaBean \u4e2d\uff0c\u6216\u8005\u662f\u5bf9\u8c61\u5c5e\u6027\u503c\u7684\u62f7\u8d1d\u64cd\u4f5c\u3002<\/p>\n\n\n\n
BeanUtils \u5b83\u4e0d\u662f Jdk \u7684\u7c7b\u3002\u800c\u662f\u7b2c\u4e09\u65b9\u7684\u5de5\u5177\u7c7b\u3002\u6240\u4ee5\u9700\u8981\u5bfc\u5305\u3002<\/p>\n\n\n\n
1\u3001\u5bfc\u5165\u9700\u8981\u7684 jar \u5305\uff1a
commons-beanutils-1.9.4.jar
commons-logging-1.2.jar<\/p>\n\n\n\n
commons-collections-3.2.2.jar<\/p>\n\n\n\n
2\u3001\u7f16\u5199 WebUtils \u5de5\u5177\u7c7b\u4f7f\u7528\uff1a<\/p>\n\n\n\n
WebUtils \u5de5\u5177\u7c7b\uff1a<\/p>\n\n\n\n
package top.qaqaq.utils;\n\nimport org.apache.commons.beanutils.BeanUtils;\n\nimport java.lang.reflect.InvocationTargetException;\nimport java.util.Map;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-10 \u4e0b\u5348 2:11\n *\/\npublic class WebUtils {\n\n \/**\n * \u628aMap\u4e2d\u7684\u503c\u6ce8\u5165\u5230\u5bf9\u5e94\u7684JavaBean\u5c5e\u6027\u4e2d\u3002\n * @param value\n * @param bean\n * \u5982\u679c\u5f62\u53c2\u5199\u6210HttpServletRequest DAO\u5c42\u548cService\u5c42\u6ca1\u6709\u8fd9\u4e2aAPI \u4e14web\u5c42\u8026\u5408\u5ea6\u9ad8\uff0c\u4ee3\u7801\u4e0d\u4f18\u96c5\n * DAO\u5c42\n * Service\u5c42\n * Web\u5c42\n *\/\n public static <T> T copyParamToBean(Map value, T bean) {\n try {\n System.out.println(\"\u6ce8\u5165\u4e4b\u524d\uff1a\" + bean);\n BeanUtils.populate(bean,value);\n System.out.println(\"\u6ce8\u5165\u4e4b\u540e\uff1a\" + bean);\n } catch (IllegalAccessException e) {\n e.printStackTrace();\n } catch (InvocationTargetException e) {\n e.printStackTrace();\n }\n return bean;\n }\n}\n<\/code><\/pre>\n\n\n\n\u4e66\u57ce-\u7b2c\u56db\u9636\u6bb5\u3002\u4f7f\u7528 EL \u8868\u8fbe\u5f0f\u4fee\u6539\u8868\u5355\u56de\u663e<\/h1>\n\n\n\n
\u4ee5\u767b\u5f55\u4e3a\u793a\u4f8b\uff1a<\/p>\n\n\n\n
<%@ page contentType=\"text\/html;charset=UTF-8\" language=\"java\" %>\n<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n<title>\u5c1a\u7845\u8c37\u4f1a\u5458\u767b\u5f55\u9875\u9762<\/title>\n\n\t<%-- \u9759\u6001\u5305\u542b base\u6807\u7b7e\uff0ccss\u6837\u5f0f\uff0cjQuery\u6587\u4ef6 --%>\n\t<%@ include file=\"\/pages\/common\/head.jsp\"%>\n\n<\/head>\n<body>\n\t\t<div id=\"login_header\">\n\t\t\t<img class=\"logo_img\" alt=\"\" src=\"static\/img\/logo.gif\" >\n\t\t<\/div>\n\t\t\n\t\t\t<div class=\"login_banner\">\n\n\t\t\t\t<div id=\"l_content\">\n\t\t\t\t\t<span class=\"login_word\">\u6b22\u8fce\u767b\u5f55<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t<div id=\"content\">\n\t\t\t\t\t<div class=\"login_form\">\n\t\t\t\t\t\t<div class=\"login_box\">\n\t\t\t\t\t\t\t<div class=\"tit\">\n\t\t\t\t\t\t\t\t<h1>\u5c1a\u7845\u8c37\u4f1a\u5458<\/h1>\n\t\t\t\t\t\t\t\t<a href=\"pages\/user\/regist.jsp\">\u7acb\u5373\u6ce8\u518c<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"msg_cont\">\n\t\t\t\t\t\t\t\t<b><\/b>\n\t\t\t\t\t\t\t\t<span class=\"errorMsg\">\n<%--\t\t\t\t\t\t\t\t\t<%=request.getAttribute(\"msg\")==null?\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\":request.getAttribute(\"msg\")%>--%>\n\t\t\t\t\t\t\t\t\t${empty requestScope.msg ? \"\u8bf7\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801\" : requestScope.msg}\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"form\">\n\t\t\t\t\t\t\t\t<form action=\"userServlet\" method=\"post\">\n\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"login\" \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u540d\u79f0\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"text\" placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"\n\t\t\t\t\t\t\t\t\t\t autocomplete=\"off\" tabindex=\"1\" name=\"username\"\n<%--\t\t\t\t\t\t\t\t\t\t value=\"<%=request.getAttribute(\"username\")==null?\"\":request.getAttribute(\"username\")%>\"--%>\n\t\t\t\t\t\t\t\t\t\t value=\"${requestScope.username}\"\n\t\t\t\t\t\t\t\t\t\/>\n\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<label>\u7528\u6237\u5bc6\u7801\uff1a<\/label>\n\t\t\t\t\t\t\t\t\t<input class=\"itxt\" type=\"password\" placeholder=\"\u8bf7\u8f93\u5165\u5bc6\u7801\" autocomplete=\"off\" tabindex=\"1\" name=\"password\" \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<br \/>\n\t\t\t\t\t\t\t\t\t<input type=\"submit\" value=\"\u767b\u5f55\" id=\"sub_btn\" \/>\n\t\t\t\t\t\t\t\t<\/form>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t<%-- \u9759\u6001\u5305\u542b\u9875\u811a\u5185\u5bb9 --%>\n\t\t<%@include file=\"\/pages\/common\/footer.jsp\"%>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<\/div><\/figure>\n\n\n\nweb.xml<\/h1>\n\n\n\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<web-app xmlns=\"https:\/\/jakarta.ee\/xml\/ns\/jakartaee\"\n xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xsi:schemaLocation=\"https:\/\/jakarta.ee\/xml\/ns\/jakartaee https:\/\/jakarta.ee\/xml\/ns\/jakartaee\/web-app_5_0.xsd\"\n version=\"5.0\">\n\n<!-- <servlet>-->\n<!-- <servlet-name>RegistServlet<\/servlet-name>-->\n<!-- <servlet-class>top.qaqaq.web.RegistServlet<\/servlet-class>-->\n<!-- <\/servlet>-->\n<!-- <servlet-mapping>-->\n<!-- <servlet-name>RegistServlet<\/servlet-name>-->\n<!-- <url-pattern>\/registServlet<\/url-pattern>-->\n<!-- <\/servlet-mapping>-->\n\n<!-- <servlet>-->\n<!-- <servlet-name>LoginServlet<\/servlet-name>-->\n<!-- <servlet-class>top.qaqaq.web.LoginServlet<\/servlet-class>-->\n<!-- <\/servlet>-->\n<!-- <servlet-mapping>-->\n<!-- <servlet-name>LoginServlet<\/servlet-name>-->\n<!-- <url-pattern>\/loginServlet<\/url-pattern>-->\n<!-- <\/servlet-mapping>-->\n\n <servlet>\n <servlet-name>UserServlet<\/servlet-name>\n <servlet-class>top.qaqaq.web.UserServlet<\/servlet-class>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>UserServlet<\/servlet-name>\n <url-pattern>\/userServlet<\/url-pattern>\n <\/servlet-mapping>\n<\/web-app><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u4e66\u57ce\u9879\u76ee-\u7b2c\u4e09\u9636\u6bb5\uff1a\u4fee\u6539\u6240\u6709html\u9875\u9762\u4e3ajsp\u9875\u9762\u3001\u4e66\u57ce\u9879\u76ee-\u7b2c\u4e09\u9636\u6bb5\uff1a\u62bd\u53d6\u6240\u6709jsp\u9875\u9762\u4e2d\u516c\u5171\u5185\u5bb9\u3001\u4e66\u57ce\u9879 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[61],"class_list":["post-2428","post","type-post","status-publish","format-standard","hentry","category-javaweb-code","tag-javaweb"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2428"}],"version-history":[{"count":7,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428\/revisions"}],"predecessor-version":[{"id":2715,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2428\/revisions\/2715"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-166.png\")
<\/div><\/figure>\n\n\n\n![\"\"](\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-167.png\")
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<\/div><\/figure>\n\n\n\n![\"\"](\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-172.png\")
<\/div><\/figure>\n\n\n\n![\"\"](\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-173-1024x476.png\")
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