{"id":1160,"date":"2021-03-08T16:32:00","date_gmt":"2021-03-08T08:32:00","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=1160"},"modified":"2021-03-17T11:06:42","modified_gmt":"2021-03-17T03:06:42","slug":"web-xml%e4%b8%8e%e6%b3%a8%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-1160.html","title":{"rendered":"web.xml\u4e0e\u6ce8\u89e3"},"content":{"rendered":"\n<h5>servlet\u76842\u79cd\u914d\u7f6e\u65b9\u5f0f<\/h5>\n\n\n\n<ul><li>\u7b2c\u4e00\uff1a\u5728web.xml\u914d\u7f6e<\/li><li>\u7b2c\u4e8c\uff1a\u4f7f\u7528@WebServlet\u6ce8\u89e3\u3002\uff08\u5e38\u7528\uff09<\/li><\/ul>\n\n\n\n<h5>1.web.xml\u4e0eservlet<\/h5>\n\n\n\n<ul><li>&lt;servlet-name&gt;\uff1a\u81ea\u5b9a\u4e49\u7684servlet\u7684\u522b\u540d<\/li><li>&lt;servlet-class&gt;\uff1a\u6307\u5b9a\u8be5\u7c7b\u7684\u5168\u9650\u5b9a\u7c7b\u540d<\/li><li>&lt;init-param&gt;\uff1a\u5b9a\u4e49\u521d\u59cb\u5316\u4fe1\u606f<ul><li>&lt;param-name&gt;\uff1a\u521d\u59cb\u5316\u6570\u636e\u540d<\/li><li>&lt;param-value&gt;\uff1a\u521d\u59cb\u5316\u6570\u636e\u503c<\/li><li>\u6bcf\u4e2a&lt;init-param&gt;\u53ea\u80fd\u6709\u4e00\u5bf9\u521d\u59cb\u5316\u6570\u636e\u6bb5<\/li><\/ul><\/li><li>&lt;welcom-file-list&gt;\uff1a\u6b22\u8fce\u5217\u8868<ul><li>&lt;welcome-file&gt;\uff1a\u4e00\u6761\u6b22\u8fce\u9875\u9762\u6570\u636e<\/li><\/ul><\/li><li>&lt;servlet-mapping&gt;\uff1a\u6620\u5c04\u914d\u7f6e<ul><li>&lt;servlet-name&gt;\uff1a\u8981\u8bbe\u7f6e\u6620\u5c04\u7684servlet\u7684\u540d\u79f0<\/li><li>&lt;url-pattern&gt;\uff1a\u6620\u5c04\u5730\u5740<\/li><\/ul><\/li><li>&lt;load-on-startup&gt;\uff1a\u6307\u5b9a\u8be5servlet\u7684\u52a0\u8f7d\u987a\u5e8f<\/li><li>&lt;async-supported&gt;\uff1a\u58f0\u660eservlet\u662f\u5426\u652f\u6301\u5f02\u6b65\u64cd\u4f5c\u6a21\u5f0f<\/li><li>&lt;display-name&gt;\uff1a\u81ea\u5b9a\u4e49servlet\u7684\u63cf\u8ff0\u540d\u79f0<\/li><li>&lt;description&gt;\uff1a\u6307\u5b9a\u8be5servelt\u7684\u63cf\u8ff0\u4fe1\u606f<\/li><\/ul>\n\n\n\n<p>\u82e5\u914d\u7f6e servlet \u6807\u7b7e\u9519\u8bef\uff0c\u5e94\u8be5\u67e5\u770b web.xml \u662f\u54263.0\u7248\u672c\uff0c\u53ef\u62f7\u8d1d\u5982\u4e0b\u5185\u5bb9<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;web-app xmlns=\"http:\/\/java.sun.com\/xml\/ns\/javaee\" \n         xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n         xsi:schemaLocation=\"http:\/\/java.sun.com\/xml\/ns\/javaee\n         http:\/\/java.sun.com\/xml\/ns\/javaee\/web-app_3_0.xsd\"\n         version=\"3.0\"&gt;\n    \n&lt;\/web-app&gt;<\/code><\/pre>\n\n\n\n<h5>2.@WebServlet\u6ce8\u89e3\u7684\u4f7f\u7528\u8be6\u89e3<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u53ea\u5199\u4e00\u4e2a\u503c\uff0c\u5c31\u662fvalue\u7684\u503c\uff0c\u800c\u9ed8\u8ba4\u7684name\u4e3a\u8be5\u7c7b\u7684\u5168\u9650\u5b9a\u7c7b\u540d\uff0c\n\/\/\u6bd4\u5982\u5728test\/Demo.java\u4e2d\u7684\u9ed8\u8ba4\u7684name\u503c\u4e3atest.Demo\n@WebServlet(\"\/Servlet\")\n\/\/\u51992\u4e2a\u503c\uff0c\u53ef\u4ee5\u628aname\u548cvalue\u8d4b\u4e88\u4e0d\u540c\u7684\u503c\n@WebServlet(value = \"\/Servlet\",name = \"test\")\n\/\u540c\u4e00\u4e2a\u6ce8\u89e3\u5c5e\u6027\/\u591a\u4e2a\u503c\uff1f\u4f7f\u7528\u5927\u62ec\u53f7\uff0c\u5e76\u4f7f\u7528\u9017\u53f7\u5206\u9694\n@WebServlet({\"\/Servlet2\", \"\/dd\", \"\/dd2\"})\n\/\/\u8be5\u6ce8\u89e3\u7684\u66f4\u591a\u5c5e\u6027\uff0c\u8bf7\u53c2\u8003\u4e0b\u8868\u5404\u5c5e\u6027\u7684\u610f\u4e49<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-table aligncenter is-style-regular\"><table><tbody><tr><td>name<\/td><td class=\"has-text-align-left\" data-align=\"left\">String<\/td><td>\u6307\u5b9aServlet \u7684 name \u5c5e\u6027\uff0c\u7b49\u4ef7\u4e8e&nbsp;<code>&lt;servlet-name&gt;<\/code>\u3002\u5982\u679c\u6ca1\u6709\u663e\u5f0f\u6307\u5b9a\uff0c\u5219\u8be5 Servlet \u7684\u53d6\u503c<strong>\u5373\u4e3a\u8be5\u7c7b\u7684\u5168\u9650\u5b9a\u7c7b\u540d\u3002<\/strong><\/td><\/tr><tr><td>value<\/td><td class=\"has-text-align-left\" data-align=\"left\">String[]<\/td><td>\u8be5\u5c5e\u6027\u7b49\u4ef7\u4e8e urlPatterns \u5c5e\u6027\u3002\u4e24\u4e2a\u5c5e\u6027\u4e0d\u80fd\u540c\u65f6\u4f7f\u7528\u3002<\/td><\/tr><tr><td>urlPatterns<\/td><td class=\"has-text-align-left\" data-align=\"left\">String[]<\/td><td>\u6307\u5b9a\u4e00\u7ec4 Servlet \u7684 URL \u5339\u914d\u6a21\u5f0f\u3002\u7b49\u4ef7\u4e8e<code>&lt;url-pattern&gt;<\/code>\u6807\u7b7e\u3002<\/td><\/tr><tr><td>loadOnStartup<\/td><td class=\"has-text-align-left\" data-align=\"left\">int<\/td><td>\u6307\u5b9a Servlet \u7684\u52a0\u8f7d\u987a\u5e8f\uff0c\u7b49\u4ef7\u4e8e&nbsp;<code>&lt;load-on-startup&gt;<\/code>\u6807\u7b7e\u3002<\/td><\/tr><tr><td>initParams<\/td><td class=\"has-text-align-left\" data-align=\"left\">WebInitParam[]<\/td><td>\u6307\u5b9a\u4e00\u7ec4 Servlet \u521d\u59cb\u5316\u53c2\u6570\uff0c\u7b49\u4ef7\u4e8e<code>&lt;init-param&gt;<\/code>\u6807\u7b7e\u3002<\/td><\/tr><tr><td>asyncSupported<\/td><td class=\"has-text-align-left\" data-align=\"left\">boolean<\/td><td>\u58f0\u660e Servlet \u662f\u5426\u652f\u6301\u5f02\u6b65\u64cd\u4f5c\u6a21\u5f0f\uff0c\u7b49\u4ef7\u4e8e<code>&lt;async-supported&gt;<\/code>&nbsp;\u6807\u7b7e\u3002<\/td><\/tr><tr><td>description<\/td><td class=\"has-text-align-left\" data-align=\"left\">String<\/td><td>\u8be5 Servlet \u7684\u63cf\u8ff0\u4fe1\u606f\uff0c\u7b49\u4ef7\u4e8e&nbsp;<code>&lt;description&gt;<\/code>\u6807\u7b7e\u3002<\/td><\/tr><tr><td>displayName<\/td><td class=\"has-text-align-left\" data-align=\"left\">String<\/td><td>\u8be5 Servlet \u7684\u663e\u793a\u540d\uff0c\u901a\u5e38\u914d\u5408\u5de5\u5177\u4f7f\u7528\uff0c\u7b49\u4ef7\u4e8e&nbsp;<code>&lt;display-name&gt;<\/code>\u6807\u7b7e\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h5>3.@WebInitParam\u6ce8\u89e3<\/h5>\n\n\n\n<p>\u5b83\u53ea\u6709\u521d\u59cb\u5316servlet\u53c2\u6570\u8fd9\u4e00\u4e2a\u529f\u80fd<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter is-style-regular\"><table><tbody><tr><td>\u5c5e\u6027\u540d<\/td><td>\u7c7b\u578b<\/td><td>\u8bf4\u660e<\/td><\/tr><tr><td>name<\/td><td>String<\/td><td>\u6307\u5b9a\u521d\u59cb\u5316\u53c2\u6570\u540d\uff0c\u7b49\u4ef7\u4e8e&lt;param-name&gt;\u5143\u7d20<\/td><\/tr><tr><td>value<\/td><td>String<\/td><td>\u6307\u5b9a\u521d\u59cb\u5316\u53c2\u6570\u503c\uff0c\u7b49\u4ef7\u4e8e&lt;param-value&gt;\u5143\u7d20<\/td><\/tr><tr><td>description<\/td><td>String<\/td><td>\u5173\u4e8e\u521d\u59cb\u5316\u53c2\u6570\u7684\u63cf\u8ff0\uff0c\u7b49\u4ef7\u4e8e&lt;description&gt;\u5143\u7d20<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h5>4. \u914d\u7f6e idea \u4e4b servlet \u6a21\u677f<\/h5>\n\n\n\n<p>\u70b9\u51fb\u53f3\u952e\u65b0\u5efa\u6587\u4ef6, \u5728\u6b64\u754c\u9762\u4e2d\u6709\u5feb\u901f edit Templates, \u627e\u5230 Other-&gt;Web-&gt;Java Code -&gt;Servlet Annotated, \u7136\u540e\u628a\u4ee3\u7801\u6539\u6210\u5982\u4e0b\u5373\u53ef<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#if (${PACKAGE_NAME} &amp;&amp; ${PACKAGE_NAME} != \"\")package ${PACKAGE_NAME};#end\n#parse(\"File Header.java\")\n@javax.servlet.annotation.WebServlet(name = \"${Entity_Name}\", urlPatterns=\"\/${Entity_Name}\")\npublic class ${Class_Name} extends javax.servlet.http.HttpServlet {\n    protected void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException {\n        request.setCharacterEncoding(\"utf-8\");\n        response.setContentType(\"text\/html;charset=utf-8\");\n    }\n\n    protected void doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException {\n        request.setCharacterEncoding(\"utf-8\");\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>servlet\u76842\u79cd\u914d\u7f6e\u65b9\u5f0f \u7b2c\u4e00\uff1a\u5728web.xml\u914d\u7f6e \u7b2c\u4e8c\uff1a\u4f7f\u7528@WebServlet\u6ce8\u89e3\u3002\uff08\u5e38\u7528\uff09 1.&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-1160.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">web.xml\u4e0e\u6ce8\u89e3<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1160"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=1160"}],"version-history":[{"count":2,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1160\/revisions"}],"predecessor-version":[{"id":1162,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1160\/revisions\/1162"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=1160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=1160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=1160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}