{"id":2132,"date":"2022-12-04T23:05:50","date_gmt":"2022-12-04T15:05:50","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2132"},"modified":"2022-12-19T20:34:25","modified_gmt":"2022-12-19T12:34:25","slug":"servlet-%e7%ac%ac%e4%b8%80%e4%b8%aaservlet%e7%a8%8b%e5%ba%8f%e3%80%81servlet-servlet%e7%94%9f%e5%91%bd%e5%91%a8%e6%9c%9f%e6%96%b9%e6%b3%95%e3%80%81servlet-%e8%af%b7%e6%b1%82%e7%9a%84%e5%88%86%e5%8f%91","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2132","title":{"rendered":"Servlet-\u7b2c\u4e00\u4e2aServlet\u7a0b\u5e8f\u3001Servlet\u751f\u547d\u5468\u671f\u65b9\u6cd5\u3001\u8bf7\u6c42\u7684\u5206\u53d1\u5904\u7406"},"content":{"rendered":"\n

Servlet \u7684\u751f\u547d\u5468\u671f<\/p>\n\n\n\n

1\u3001\u6267\u884c Servlet \u6784\u9020\u5668\u65b9\u6cd5
2\u3001\u6267\u884c init \u521d\u59cb\u5316\u65b9\u6cd5
\u7b2c\u4e00\u3001\u4e8c\u6b65\uff0c\u662f\u5728\u7b2c\u4e00\u6b21\u8bbf\u95ee\uff0c\u7684\u65f6\u5019\u521b\u5efa Servlet \u7a0b\u5e8f\u4f1a\u8c03\u7528\u3002<\/p>\n\n\n\n

3\u3001\u6267\u884c service \u65b9\u6cd5
\u7b2c\u4e09\u6b65\uff0c\u6bcf\u6b21\u8bbf\u95ee\u90fd\u4f1a\u8c03\u7528\u3002<\/p>\n\n\n\n

4\u3001\u6267\u884c destroy \u9500\u6bc1\u65b9\u6cd5
\u7b2c\u56db\u6b65\uff0c\u5728 web \u5de5\u7a0b\u505c\u6b62\u7684\u65f6\u5019\u8c03\u7528\u3002<\/p>\n\n\n\n

package top.qaqaq.P122;\n\nimport jakarta.servlet.*;\nimport jakarta.servlet.http.HttpServletRequest;\n\nimport java.io.IOException;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-04 \u4e0b\u5348 6:28\n *\/\npublic class HelloServlet implements Servlet {\n\n    public HelloServlet() {\n        System.out.println(\"1 \u6784\u9020\u5668\u65b9\u6cd5\");\n    }\n\n    @Override\n    public void init(ServletConfig servletConfig) throws ServletException {\n        System.out.println(\"2 init\u521d\u59cb\u5316\u65b9\u6cd5\");\n\n    }\n\n    @Override\n    public ServletConfig getServletConfig() {\n        return null;\n    }\n\n    \/**\n     * service\u65b9\u6cd5\u662f\u4e13\u95e8\u7528\u6765\u5904\u7406\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\n     * @param servletRequest\n     * @param servletResponse\n     * @throws ServletException\n     * @throws IOException\n     *\/\n    @Override\n    public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {\n        System.out.println(\"3 service === Hello Servlet \u88ab\u8bbf\u95ee\u4e86\");\n\n        \/\/ \u7c7b\u578b\u8f6c\u6362\uff08\u56e0\u4e3a\u5b83\u6709getMethod()\u65b9\u6cd5\uff09\n        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;\n        \/\/ \u83b7\u53d6\u8bf7\u6c42\u65b9\u5f0f\n        String method = httpServletRequest.getMethod();\n\n\/\/        System.out.println(method);\n\n        if (\"GET\".equals(method)){\n            doGet();\n        } else {\n            doPost();\n        }\n\n    }\n\n    \/**\n     * \u505aget\u8bf7\u6c42\u7684\u64cd\u4f5c\n     *\/\n    public void doGet(){\n        System.out.println(\"get\u8bf7\u6c42\");\n        System.out.println(\"get\u8bf7\u6c42\");\n    }\n\n    \/**\n     * \u505apost\u8bf7\u6c42\u7684\u64cd\u4f5c\n     *\/\n    public void doPost(){\n        System.out.println(\"post\u8bf7\u6c42\");\n        System.out.println(\"post\u8bf7\u6c42\");\n    }\n\n    @Override\n    public String getServletInfo() {\n        return null;\n    }\n\n    @Override\n    public void destroy() {\n        System.out.println(\"4 destory\u9500\u6bc1\u65b9\u6cd5\");\n\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":"
Servlet \u7684\u751f\u547d\u5468\u671f 1\u3001\u6267\u884c Servlet \u6784\u9020\u5668\u65b9\u6cd52\u3001\u6267\u884c init \u521d\u59cb\u5316\u65b9\u6cd5\u7b2c\u4e00\u3001\u4e8c\u6b65\uff0c\u662f\u5728 […]<\/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-2132","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\/2132"}],"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=2132"}],"version-history":[{"count":3,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2132\/revisions"}],"predecessor-version":[{"id":2698,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2132\/revisions\/2698"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}