\u901a\u8fc7\u7ee7\u627f HttpServlet \u5b9e\u73b0 Servlet \u7a0b\u5e8f<\/p>\n\n\n\n
\u4e00\u822c\u5728\u5b9e\u9645\u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u90fd\u662f\u4f7f\u7528\u7ee7\u627f HttpServlet \u7c7b\u7684\u65b9\u5f0f\u53bb\u5b9e\u73b0 Servlet \u7a0b\u5e8f\u3002
1\u3001\u7f16\u5199\u4e00\u4e2a\u7c7b\u53bb\u7ee7\u627f HttpServlet \u7c7b
2\u3001\u6839\u636e\u4e1a\u52a1\u9700\u8981\u91cd\u5199 doGet \u6216 doPost \u65b9\u6cd5
3\u3001\u5230 web.xml \u4e2d\u7684\u914d\u7f6e Servlet \u7a0b\u5e8f\u7684\u8bbf\u95ee\u5730\u5740<\/p>\n\n\n\n
package top.qaqaq.P127;\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;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-04 \u4e0b\u5348 8:33\n *\/\npublic class HelloServlet2 extends HttpServlet {\n\n \/**\n * doGet() \u5728get\u8bf7\u6c42\u7684\u65f6\u5019\u8c03\u7528\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n @Override\n protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doGet(req, resp);\n System.out.println(\"HelloServlet2 \u7684doGet\u65b9\u6cd5\");\n }\n\n \/**\n * doPost() \u5728post\u8bf7\u6c42\u7684\u65f6\u5019\u8c03\u7528\n * @param req\n * @param resp\n * @throws ServletException\n * @throws IOException\n *\/\n @Override\n protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {\n\/\/ super.doPost(req, resp);\n System.out.println(\"HelloServlet2 \u7684doPost\u65b9\u6cd5\");\n }\n}\n<\/code><\/pre>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <title>Title<\/title>\n<\/head>\n<body>\n<!-- <form action=\"http:\/\/localhost:8080\/JavaWeb_Code_Servlet\/hello\" method=\"get\">-->\n<!-- -->\n<!-- <input type=\"submit\">-->\n<!-- <\/form>-->\n\n <form action=\"http:\/\/localhost:8080\/JavaWeb_Code_Servlet\/hello3\" method=\"post\">\n\n <input type=\"submit\">\n <\/form>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<web-app xmlns=\"http:\/\/xmlns.jcp.org\/xml\/ns\/javaee\"\n xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xsi:schemaLocation=\"http:\/\/xmlns.jcp.org\/xml\/ns\/javaee http:\/\/xmlns.jcp.org\/xml\/ns\/javaee\/web-app_4_0.xsd\"\n version=\"4.0\">\n\n <!-- servlet\u6807\u7b7e\u7ed9Tomcat\u914d\u7f6eServlet\u7a0b\u5e8f -->\n <servlet>\n <!--servlet-name\u6807\u7b7e Servlet\u7a0b\u5e8f\u8d77\u4e00\u4e2a\u522b\u540d\uff08\u4e00\u822c\u662f\u7c7b\u540d\uff09-->\n <servlet-name>HelloServlet<\/servlet-name>\n <!--servlet-class\u662fServlet\u7a0b\u5e8f\u7684\u5168\u7c7b\u540d\uff09-->\n <servlet-class>top.qaqaq.P122.HelloServlet<\/servlet-class>\n <\/servlet>\n\n <!-- servlet-mapping\u6807\u7b7e\u7ed9servlet\u7a0b\u5e8f\u914d\u7f6e\u8bbf\u95ee\u5730\u5740 -->\n <servlet-mapping>\n <!-- servlet-name\u6807\u7b7e\u7684\u4f5c\u7528\u662f\u544a\u8bc9\u670d\u52a1\u5668\uff0c\u6211\u5f53\u524d\u914d\u7f6e\u7684\u5730\u5740\u7ed9\u54ea\u4e2aservlet\u7a0b\u5e8f\u4f7f\u7528 -->\n <servlet-name>HelloServlet<\/servlet-name>\n <!-- url-pattern\u6807\u7b7e\u914d\u7f6e\u8bbf\u95ee\u5730\u5740\n \/ \u659c\u6760\u5728\u670d\u52a1\u5668\u89e3\u6790\u7684\u65f6\u5019\uff0c\u8868\u793a\u5730\u5740\u4e3a\uff1ahttp:\/\/ip:port\/\u5de5\u7a0b\u8def\u5f84\n \/hello \u8868\u793a\u5730\u5740\u4e3a\uff1ahttp:\/\/ip:port\/\u5de5\u7a0b\u8def\u5f84\/hello\n -->\n <url-pattern>\/hello<\/url-pattern>\n <\/servlet-mapping>\n \n <servlet>\n <servlet-name>HelloServlet2<\/servlet-name>\n <servlet-class>top.qaqaq.P127.HelloServlet2<\/servlet-class>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>HelloServlet2<\/servlet-name>\n <url-pattern>\/hello2<\/url-pattern>\n <\/servlet-mapping>\n\n <servlet>\n <servlet-name>HelloServlet3<\/servlet-name>\n <servlet-class>top.qaqaq.P128.HelloServlet3<\/servlet-class>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>HelloServlet3<\/servlet-name>\n <url-pattern>\/hello3<\/url-pattern>\n <\/servlet-mapping>\n\n <servlet>\n <servlet-name>HelloServlet4<\/servlet-name>\n <servlet-class>top.qaqaq.P130.HelloServlet4<\/servlet-class>\n <!-- init-param\u662f\u521d\u59cb\u5316\u53c2\u6570 -->\n <init-param>\n <!-- \u662f\u53c2\u6570\u540d -->\n <param-name>username<\/param-name>\n <!-- \u662f\u53c2\u6570\u503c -->\n <param-value>root<\/param-value>\n <\/init-param>\n <!-- init-param\u662f\u521d\u59cb\u5316\u53c2\u6570 -->\n <init-param>\n <!-- \u662f\u53c2\u6570\u540d -->\n <param-name>url<\/param-name>\n <!-- \u662f\u53c2\u6570\u503c -->\n <param-value>jdbc:mysql:\/\/localhost:3306\/test<\/param-value>\n <\/init-param>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>HelloServlet4<\/servlet-name>\n <url-pattern>\/hello4<\/url-pattern>\n <\/servlet-mapping>\n\n <servlet>\n <servlet-name>HelloServlet5<\/servlet-name>\n <servlet-class>top.qaqaq.P131.HelloServlet5<\/servlet-class>\n <!-- init-param\u662f\u521d\u59cb\u5316\u53c2\u6570 -->\n <init-param>\n <!-- \u662f\u53c2\u6570\u540d -->\n <param-name>username<\/param-name>\n <!-- \u662f\u53c2\u6570\u503c -->\n <param-value>root2<\/param-value>\n <\/init-param>\n <!-- init-param\u662f\u521d\u59cb\u5316\u53c2\u6570 -->\n <init-param>\n <!-- \u662f\u53c2\u6570\u540d -->\n <param-name>url<\/param-name>\n <!-- \u662f\u53c2\u6570\u503c -->\n <param-value>jdbc:mysql:\/\/localhost:3306\/test2<\/param-value>\n <\/init-param>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>HelloServlet5<\/servlet-name>\n <url-pattern>\/hello5<\/url-pattern>\n <\/servlet-mapping>\n<\/web-app><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u901a\u8fc7\u7ee7\u627f HttpServlet \u5b9e\u73b0 Servlet \u7a0b\u5e8f \u4e00\u822c\u5728\u5b9e\u9645\u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u90fd\u662f\u4f7f\u7528\u7ee7\u627f HttpSe […]<\/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-2134","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\/2134"}],"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=2134"}],"version-history":[{"count":2,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2134\/revisions"}],"predecessor-version":[{"id":2146,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2134\/revisions\/2146"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}