{"id":47637,"date":"2025-07-30T08:32:43","date_gmt":"2025-07-30T00:32:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47637.html"},"modified":"2025-07-30T08:32:43","modified_gmt":"2025-07-30T00:32:43","slug":"%e5%85%a8%e6%a0%88%e5%ad%a6%e4%b9%a0-javaweb%ef%bc%88%e4%ba%8c%ef%bc%89web-%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47637.html","title":{"rendered":"\u5168\u6808\u5b66\u4e60 \u2014\u2014JavaWeb\uff08\u4e8c\uff09Web \u670d\u52a1\u5668"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"%E4%B8%80%E3%80%81%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C%E5%9F%BA%E7%A1%80%EF%BC%9AWeb%20%E9%80%9A%E4%BF%A1%E7%9A%84%E5%BA%95%E5%B1%82%E6%94%AF%E6%92%91-toc\" style=\"margin-left:40px\">\u4e00\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u57fa\u7840&#xff1a;Web \u901a\u4fe1\u7684\u5e95\u5c42\u652f\u6491<\/p>\n<p id=\"1.%20TCP%2FIP%20%E5%8D%8F%E8%AE%AE%E6%A0%88%EF%BC%9A%E7%BD%91%E7%BB%9C%E9%80%9A%E4%BF%A1%E7%9A%84%20%E2%80%9C%E9%80%9A%E7%94%A8%E8%AF%AD%E8%A8%80%E2%80%9D-toc\" style=\"margin-left:80px\">1. 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Servlet \u751f\u547d\u5468\u671f\u7ba1\u7406&#xff1a;\u5bb9\u5668\u7684 \u201c\u8d44\u6e90\u8c03\u5ea6\u201d<\/p>\n<p id=\"%E5%9B%9B%E3%80%81%E8%A1%A8%E5%8D%95%E6%8F%90%E4%BA%A4%E7%9A%84%E5%AE%8C%E6%95%B4%E5%A4%84%E7%90%86%E6%B5%81%E7%A8%8B%EF%BC%88%E5%AE%9E%E6%88%98%E8%A7%A3%E6%9E%90%EF%BC%89-toc\" style=\"margin-left:40px\">\u56db\u3001\u8868\u5355\u63d0\u4ea4\u7684\u5b8c\u6574\u5904\u7406\u6d41\u7a0b<\/p>\n<p id=\"1.%20%E5%89%8D%E7%AB%AF%E8%A1%A8%E5%8D%95%E5%87%86%E5%A4%87%EF%BC%88login.html%EF%BC%89-toc\" style=\"margin-left:80px\">1. \u524d\u7aef\u8868\u5355\u51c6\u5907&#xff08;login.html&#xff09;<\/p>\n<p id=\"2.%20%E8%A1%A8%E5%8D%95%E6%8F%90%E4%BA%A4%E5%88%B0%E5%93%8D%E5%BA%94%E7%9A%84%E5%BA%95%E5%B1%82%E6%AD%A5%E9%AA%A4-toc\" style=\"margin-left:80px\">2. \u8868\u5355\u63d0\u4ea4\u5230\u54cd\u5e94\u7684\u5e95\u5c42\u6b65\u9aa4<\/p>\n<p id=\"%EF%BC%881%EF%BC%89%E6%B5%8F%E8%A7%88%E5%99%A8%E5%A4%84%E7%90%86%EF%BC%88%E5%AE%A2%E6%88%B7%E7%AB%AF%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;1&#xff09;\u6d4f\u89c8\u5668\u5904\u7406&#xff08;\u5ba2\u6237\u7aef&#xff09;<\/p>\n<p id=\"%EF%BC%882%EF%BC%89Tomcat%20%E5%A4%84%E7%90%86%EF%BC%88%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;2&#xff09;Tomcat \u5904\u7406&#xff08;\u670d\u52a1\u5668\u7aef&#xff09;<\/p>\n<p id=\"3.%20%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98%E5%8F%8A%E8%A7%A3%E5%86%B3-toc\" style=\"margin-left:80px\">3. \u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3<\/p>\n<p id=\"%E4%BA%94%E3%80%81%E4%B8%BB%E6%B5%81%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E4%BB%8B%E7%BB%8D-toc\" style=\"margin-left:40px\">\u4e94\u3001\u4e3b\u6d41 Web \u670d\u52a1\u5668\u4ecb\u7ecd<\/p>\n<p id=\"1.%20%E8%BD%BB%E9%87%8F%E7%BA%A7%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%88%E5%BC%80%E5%8F%91%E4%B8%8E%E4%B8%AD%E5%B0%8F%E5%BA%94%E7%94%A8%EF%BC%89-toc\" style=\"margin-left:80px\">1. \u8f7b\u91cf\u7ea7 Web \u670d\u52a1\u5668&#xff08;\u5f00\u53d1\u4e0e\u4e2d\u5c0f\u5e94\u7528&#xff09;<\/p>\n<p id=\"%EF%BC%881%EF%BC%89Tomcat-toc\" style=\"margin-left:120px\">&#xff08;1&#xff09;Tomcat<\/p>\n<p id=\"%EF%BC%882%EF%BC%89Jetty-toc\" style=\"margin-left:120px\">&#xff08;2&#xff09;Jetty<\/p>\n<p id=\"2.%20%E4%BC%81%E4%B8%9A%E7%BA%A7%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%88%E5%A4%A7%E5%9E%8B%E5%BA%94%E7%94%A8%EF%BC%89-toc\" style=\"margin-left:80px\">2. \u4f01\u4e1a\u7ea7 Web \u670d\u52a1\u5668&#xff08;\u5927\u578b\u5e94\u7528&#xff09;<\/p>\n<p id=\"%EF%BC%881%EF%BC%89WebLogic%EF%BC%88Oracle%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;1&#xff09;WebLogic&#xff08;Oracle&#xff09;<\/p>\n<p id=\"%EF%BC%882%EF%BC%89WebSphere%EF%BC%88IBM%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;2&#xff09;WebSphere&#xff08;IBM&#xff09;<\/p>\n<p id=\"%EF%BC%883%EF%BC%89WildFly%EF%BC%88%E5%8E%9F%20JBoss%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;3&#xff09;WildFly&#xff08;\u539f JBoss&#xff09;<\/p>\n<p id=\"%E5%85%AD%E3%80%81%E5%AE%9E%E6%88%98%EF%BC%9ATomcat%20%E5%AE%89%E8%A3%85%E4%B8%8E%E8%A1%A8%E5%8D%95%E5%BA%94%E7%94%A8%E9%83%A8%E7%BD%B2-toc\" style=\"margin-left:40px\">\u516d\u3001\u5b9e\u6218&#xff1a;Tomcat \u5b89\u88c5\u4e0e\u8868\u5355\u5e94\u7528\u90e8\u7f72<\/p>\n<p id=\"1.%20Tomcat%20%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AE%EF%BC%88Windows%EF%BC%89-toc\" style=\"margin-left:80px\">1. Tomcat \u5b89\u88c5\u4e0e\u914d\u7f6e&#xff08;Windows&#xff09;<\/p>\n<p id=\"2.%20%E8%A1%A8%E5%8D%95%E5%BA%94%E7%94%A8%E9%83%A8%E7%BD%B2%E5%AE%9E%E6%88%98-toc\" style=\"margin-left:80px\">2. \u8868\u5355\u5e94\u7528\u90e8\u7f72\u5b9e\u6218<\/p>\n<p id=\"%EF%BC%881%EF%BC%89%E5%88%9B%E5%BB%BA%E5%BA%94%E7%94%A8%E7%9B%AE%E5%BD%95-toc\" style=\"margin-left:120px\">&#xff08;1&#xff09;\u521b\u5efa\u5e94\u7528\u76ee\u5f55<\/p>\n<p id=\"%EF%BC%882%EF%BC%89%E7%BC%96%E5%86%99%E5%89%8D%E7%AB%AF%E8%A1%A8%E5%8D%95%EF%BC%88login.html%EF%BC%89-toc\" style=\"margin-left:120px\">&#xff08;2&#xff09;\u7f16\u5199\u524d\u7aef\u8868\u5355&#xff08;login.html&#xff09;<\/p>\n<p id=\"%EF%BC%883%EF%BC%89%E7%BC%96%E5%86%99%E5%B9%B6%E7%BC%96%E8%AF%91%20Servlet-toc\" style=\"margin-left:120px\">&#xff08;3&#xff09;\u7f16\u5199\u5e76\u7f16\u8bd1 Servlet<\/p>\n<p id=\"%EF%BC%884%EF%BC%89%E6%B5%8B%E8%AF%95%E6%B5%81%E7%A8%8B-toc\" style=\"margin-left:120px\">&#xff08;4&#xff09;\u6d4b\u8bd5\u6d41\u7a0b<\/p>\n<p id=\"%E4%B8%83%E3%80%81%E6%80%BB%E7%BB%93%EF%BC%9A%E4%BB%8E%E7%BD%91%E7%BB%9C%E5%9F%BA%E7%A1%80%E5%88%B0%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8-toc\" style=\"margin-left:40px\">\u4e03\u3001\u603b\u7ed3&#xff1a;\u4ece\u7f51\u7edc\u57fa\u7840\u5230 Web \u670d\u52a1\u5668<\/p>\n<hr id=\"hr-toc\" \/>\n<p>\u5728 JavaWeb \u5f00\u53d1\u4e2d&#xff0c;Web \u670d\u52a1\u5668\u662f\u8fde\u63a5\u7528\u6237\u4e0e\u5e94\u7528\u7684\u6838\u5fc3\u67a2\u7ebd\u3002\u4f46\u5b83\u7684\u8fd0\u4f5c\u79bb\u4e0d\u5f00\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u5e95\u5c42\u652f\u6491 \u2014\u2014 \u4ece\u7528\u6237\u5728\u6d4f\u89c8\u5668\u8f93\u5165\u7f51\u5740\u5230\u9875\u9762\u663e\u793a&#xff0c;\u80cc\u540e\u662f TCP\/IP \u534f\u8bae\u6808\u3001HTTP \u534f\u8bae\u4e0e Web \u670d\u52a1\u5668\u7684\u534f\u540c\u5de5\u4f5c\u3002\u672c\u6587\u5c06\u4ece\u8ba1\u7b97\u673a\u7f51\u7edc\u57fa\u7840\u8bb2\u8d77&#xff0c;\u8be6\u89e3 Web \u670d\u52a1\u5668\u7684\u6838\u5fc3\u529f\u80fd\u3001\u539f\u7406\u53ca\u5b9e\u6218\u64cd\u4f5c&#xff0c;\u5e76\u91cd\u70b9\u5206\u6790\u8868\u5355\u63d0\u4ea4\u7684\u5b8c\u6574\u6d41\u7a0b\u3002<\/p>\n<h3 id=\"\"><\/h3>\n<h3 id=\"%E4%B8%80%E3%80%81%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C%E5%9F%BA%E7%A1%80%EF%BC%9AWeb%20%E9%80%9A%E4%BF%A1%E7%9A%84%E5%BA%95%E5%B1%82%E6%94%AF%E6%92%91\">\u4e00\u3001\u8ba1\u7b97\u673a\u7f51\u7edc\u57fa\u7840&#xff1a;Web \u901a\u4fe1\u7684\u5e95\u5c42\u652f\u6491<\/h3>\n<p>Web \u670d\u52a1\u5668\u7684\u6838\u5fc3\u4f5c\u7528\u662f \u201c\u5904\u7406\u7f51\u7edc\u8bf7\u6c42\u201d&#xff0c;\u800c\u7f51\u7edc\u8bf7\u6c42\u7684\u4f20\u8f93\u4f9d\u8d56\u4e8e\u6210\u719f\u7684\u534f\u8bae\u4f53\u7cfb\u3002\u7406\u89e3\u8fd9\u4e9b\u57fa\u7840&#xff0c;\u624d\u80fd\u771f\u6b63\u770b\u61c2 Web \u670d\u52a1\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h4 id=\"1.%20TCP%2FIP%20%E5%8D%8F%E8%AE%AE%E6%A0%88%EF%BC%9A%E7%BD%91%E7%BB%9C%E9%80%9A%E4%BF%A1%E7%9A%84%20%E2%80%9C%E9%80%9A%E7%94%A8%E8%AF%AD%E8%A8%80%E2%80%9D\">1. TCP\/IP \u534f\u8bae\u6808&#xff1a;\u7f51\u7edc\u901a\u4fe1\u7684 \u201c\u901a\u7528\u8bed\u8a00\u201d<\/h4>\n<p>\u8ba1\u7b97\u673a\u4e4b\u95f4\u7684\u901a\u4fe1\u9700\u8981\u9075\u5faa\u7edf\u4e00\u89c4\u5219&#xff0c;TCP\/IP \u534f\u8bae\u6808\u5c31\u662f\u8fd9\u5957\u89c4\u5219\u7684\u96c6\u5408&#xff0c;\u5b83\u5206\u4e3a 4 \u5c42&#xff08;\u4ece\u5e95\u5c42\u5230\u5e94\u7528\u5c42&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u6570\u636e\u94fe\u8def\u5c42&#xff1a;\u5904\u7406\u7269\u7406\u8bbe\u5907&#xff08;\u5982\u7f51\u5361&#xff09;\u7684\u4fe1\u53f7\u4f20\u8f93&#xff0c;\u8d1f\u8d23\u5c06\u6570\u636e\u8f6c\u6362\u6210\u7535\u4fe1\u53f7\u6216\u5149\u4fe1\u53f7&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u7f51\u7edc\u5c42&#xff1a;\u901a\u8fc7 IP \u5730\u5740\u5b9a\u4f4d\u76ee\u6807\u8ba1\u7b97\u673a&#xff08;\u5982192.168.1.1&#xff09;&#xff0c;\u5e76\u9009\u62e9\u4f20\u8f93\u8def\u5f84&#xff08;\u8def\u7531&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f20\u8f93\u5c42&#xff1a;\u63d0\u4f9b\u53ef\u9760\u4f20\u8f93&#xff08;TCP \u534f\u8bae&#xff09;\u6216\u5feb\u901f\u4f20\u8f93&#xff08;UDP \u534f\u8bae&#xff09;\u3002Web \u901a\u4fe1\u4e3b\u8981\u7528TCP\u2014\u2014 \u5b83\u901a\u8fc7<span style=\"color:#fe2c24\"> \u201c\u4e09\u6b21\u63e1\u624b\u201d \u5efa\u7acb\u8fde\u63a5\u3001\u201c\u56db\u6b21\u6325\u624b\u201d \u65ad\u5f00\u8fde\u63a5<\/span>&#xff0c;\u786e\u4fdd\u6570\u636e\u4e0d\u4e22\u5931\u3001\u4e0d\u91cd\u590d&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u5e94\u7528\u5c42&#xff1a;\u5b9a\u4e49\u5177\u4f53\u5e94\u7528\u7684\u901a\u4fe1\u89c4\u5219&#xff08;\u5982 HTTP \u534f\u8bae\u7528\u4e8e Web&#xff0c;FTP \u534f\u8bae\u7528\u4e8e\u6587\u4ef6\u4f20\u8f93&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u8f6c\u6362-\u5b9a\u4f4d-\u4f20\u8f93-\u901a\u4fe1<\/p>\n<p>\u53ef\u4ee5\u7528 \u201c\u5feb\u9012\u8fd0\u8f93\u201d \u6bd4\u55bb&#xff1a;<\/p>\n<ul>\n<li>IP \u5730\u5740 &#061; \u6536\u4ef6\u4eba\u5730\u5740&#xff08;\u786e\u5b9a\u76ee\u6807\u8ba1\u7b97\u673a&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>TCP \u534f\u8bae &#061; \u5feb\u9012\u5458&#xff08;\u8d1f\u8d23\u628a\u5305\u88f9\u5b8c\u6574\u9001\u5230&#xff0c;\u4e22\u4ef6\u4f1a\u91cd\u53d1&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>HTTP \u534f\u8bae &#061; \u5305\u88f9\u91cc\u7684 \u201c\u53d1\u8d27\u5355\u201d&#xff08;\u89c4\u5b9a\u5185\u5bb9\u683c\u5f0f&#xff0c;\u8ba9\u6536\u4ef6\u4eba\u80fd\u770b\u61c2&#xff09;\u3002<\/li>\n<\/ul>\n<h4 id=\"2.%20HTTP%20%E5%8D%8F%E8%AE%AE%EF%BC%9AWeb%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E4%B8%8E%E6%B5%8F%E8%A7%88%E5%99%A8%E7%9A%84%20%E2%80%9C%E5%AF%B9%E8%AF%9D%E8%A7%84%E5%88%99%E2%80%9D\">2. HTTP \u534f\u8bae&#xff1a;Web \u670d\u52a1\u5668\u4e0e\u6d4f\u89c8\u5668\u7684 \u201c\u5bf9\u8bdd\u89c4\u5219\u201d<\/h4>\n<p>HTTP&#xff08;\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae&#xff09;\u662f\u5e94\u7528\u5c42\u534f\u8bae&#xff0c;\u5b9a\u4e49\u4e86\u6d4f\u89c8\u5668\u4e0e Web \u670d\u52a1\u5668\u7684\u901a\u4fe1\u683c\u5f0f\u3002\u6838\u5fc3\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u8bf7\u6c42 &#8211; \u54cd\u5e94\u6a21\u5f0f&#xff1a;\u6d4f\u89c8\u5668\u53d1\u9001 \u201c\u8bf7\u6c42\u201d&#xff0c;\u670d\u52a1\u5668\u8fd4\u56de \u201c\u54cd\u5e94\u201d&#xff0c;\u4e00\u6b21\u4ea4\u4e92\u540e\u8fde\u63a5\u5173\u95ed&#xff08;HTTP\/1.1 \u652f\u6301\u957f\u8fde\u63a5\u4f18\u5316&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u65e0\u72b6\u6001&#xff1a;\u670d\u52a1\u5668\u4e0d\u8bb0\u5f55\u7528\u6237\u5386\u53f2&#xff08;\u5982\u7b2c\u4e00\u6b21\u548c\u7b2c\u4e8c\u6b21\u8bf7\u6c42\u65e0\u5173\u8054&#xff0c;\u9700\u7528 Cookie\/Session \u4fdd\u6301\u72b6\u6001&#xff09;\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%881%EF%BC%89HTTP%20%E8%AF%B7%E6%B1%82%E6%A0%BC%E5%BC%8F\">&#xff08;1&#xff09;HTTP \u8bf7\u6c42\u683c\u5f0f<\/h5>\n<p>\u4e00\u4e2a\u5b8c\u6574\u7684 HTTP \u8bf7\u6c42\u7531\u4e09\u90e8\u5206\u7ec4\u6210&#xff1a;<\/p>\n<p>\u8bf7\u6c42\u884c&#xff1a;POST \/myapp\/login HTTP\/1.1 &#xff08;\u65b9\u6cd5 &#043; \u8def\u5f84 &#043; \u7248\u672c&#xff09;<\/p>\n<\/p>\n<p>\u8bf7\u6c42\u5934&#xff1a;Host: localhost:8080 &#xff08;\u76ee\u6807\u4e3b\u673a&#xff09;<\/p>\n<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Content-Type: application\/x-www-form-urlencoded &#xff08;\u6570\u636e\u7c7b\u578b&#xff09;<\/p>\n<\/p>\n<p>\u00a0 \u00a0 \u00a0 Content-Length: 27 &#xff08;\u6570\u636e\u957f\u5ea6&#xff09;<\/p>\n<\/p>\n<p>\u00a0 \u00a0 \u00a0&#xff08;\u7a7a\u884c\u7528\u4e8e\u5206\u9694\u8bf7\u6c42\u5934\u548c\u8bf7\u6c42\u4f53&#xff09;<\/p>\n<\/p>\n<p>\u8bf7\u6c42\u4f53&#xff1a;username&#061;admin&amp;password&#061;123 &#xff08;\u8868\u5355\u6570\u636e&#xff0c;POST\u65b9\u5f0f\u624d\u6709&#xff09;<\/p>\n<h5 id=\"%EF%BC%882%EF%BC%89HTTP%20%E5%93%8D%E5%BA%94%E6%A0%BC%E5%BC%8F\">&#xff08;2&#xff09;HTTP \u54cd\u5e94\u683c\u5f0f<\/h5>\n<p>\u670d\u52a1\u5668\u7684\u54cd\u5e94\u5bf9\u5e94\u5206\u4e3a\u4e09\u90e8\u5206&#xff1a;<\/p>\n<p>\u54cd\u5e94\u884c&#xff1a;HTTP\/1.1 200 OK &#xff08;\u7248\u672c &#043; \u72b6\u6001\u7801 &#043; \u63cf\u8ff0&#xff09;<\/p>\n<\/p>\n<p>\u54cd\u5e94\u5934&#xff1a;Content-Type: text\/html;charset&#061;UTF-8 &#xff08;\u8fd4\u56de\u6570\u636e\u7c7b\u578b&#xff09;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0Content-Length: 20 &#xff08;\u54cd\u5e94\u4f53\u957f\u5ea6&#xff09;<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7a7a\u884c\u9694\u54cd\u5e94\u5934\u548c\u54cd\u5e94\u4f53&#xff09;<\/p>\n<\/p>\n<p>\u54cd\u5e94\u4f53&#xff1a;&lt;h1&gt;\u767b\u5f55\u6210\u529f&lt;\/h1&gt; &#xff08;\u5b9e\u9645\u663e\u793a\u7684\u5185\u5bb9&#xff09;<\/p>\n<h4 id=\"3.%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%9A%84%E5%AE%9A%E4%BD%8D%EF%BC%9A%E5%BA%94%E7%94%A8%E5%B1%82%E7%9A%84%20%E2%80%9C%E8%AF%B7%E6%B1%82%E5%A4%84%E7%90%86%E5%99%A8%E2%80%9D\">3. Web \u670d\u52a1\u5668\u7684\u5b9a\u4f4d&#xff1a;\u5e94\u7528\u5c42\u7684 \u201c\u8bf7\u6c42\u5904\u7406\u5668\u201d<\/h4>\n<p>Web \u670d\u52a1\u5668\u5de5\u4f5c\u5728\u5e94\u7528\u5c42&#xff0c;\u57fa\u4e8e<span style=\"color:#fe2c24\"> TCP\/IP \u548c HTTP \u534f\u8bae<\/span>\u5b9e\u73b0\u4e24\u4e2a\u6838\u5fc3\u529f\u80fd&#xff1a;<\/p>\n<ul>\n<li>\u76d1\u542c TCP \u7aef\u53e3&#xff08;\u5982 Tomcat \u9ed8\u8ba4 8080&#xff09;&#xff0c;\u63a5\u6536\u6d4f\u89c8\u5668\u7684 HTTP \u8bf7\u6c42&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u6309 HTTP \u89c4\u8303\u89e3\u6790\u8bf7\u6c42\u3001\u751f\u6210\u54cd\u5e94&#xff0c;\u534f\u8c03\u540e\u7aef\u8d44\u6e90&#xff08;\u5982 Servlet\u3001\u9759\u6001\u6587\u4ef6&#xff09;\u5904\u7406\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<h3><\/h3>\n<h3 id=\"%E4%BA%8C%E3%80%81Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E6%A0%B8%E5%BF%83%EF%BC%9A%E4%BB%8E%E6%A6%82%E5%BF%B5%E5%88%B0%E5%8A%9F%E8%83%BD\">\u4e8c\u3001Web \u670d\u52a1\u5668\u6838\u5fc3&#xff1a;\u4ece\u6982\u5ff5\u5230\u529f\u80fd<\/h3>\n<h4 id=\"1.%20%E4%BB%80%E4%B9%88%E6%98%AF%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%9F\">1. \u4ec0\u4e48\u662f Web \u670d\u52a1\u5668&#xff1f;<\/h4>\n<p>Web \u670d\u52a1\u5668\u662f\u80fd\u901a\u8fc7 HTTP \u534f\u8bae\u4e0e\u5ba2\u6237\u7aef&#xff08;\u6d4f\u89c8\u5668&#xff09;\u901a\u4fe1\u7684\u8f6f\u4ef6\u3002\u5b83\u5206\u4e3a\u4e24\u7c7b&#xff1a;<\/p>\n<ul>\n<li>\u9759\u6001 Web \u670d\u52a1\u5668&#xff1a;\u4ec5\u5904\u7406\u9759\u6001\u8d44\u6e90&#xff08;\u5982 HTML\u3001CSS\u3001\u56fe\u7247&#xff09;&#xff0c;\u5982 Nginx\u3001Apache&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>JavaWeb \u5bb9\u5668&#xff1a;\u9664\u9759\u6001\u8d44\u6e90\u5916&#xff0c;\u8fd8\u80fd\u8fd0\u884c Java \u7ec4\u4ef6&#xff08;Servlet\/JSP&#xff09;&#xff0c;\u5982 <span style=\"color:#fe2c24\">Tomcat<\/span>\u3001WebLogic\u2014\u2014 \u8fd9\u662f JavaWeb \u5f00\u53d1\u7684\u6838\u5fc3&#xff0c;\u540e\u7eed\u7b80\u79f0 \u201cWeb \u670d\u52a1\u5668\u201d\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb\u7406\u89e3&#xff1a;\u9759\u6001\u670d\u52a1\u5668\u50cf \u201c\u4fbf\u5229\u5e97\u201d&#xff08;\u53ea\u5356\u73b0\u6210\u5546\u54c1&#xff09;&#xff0c;JavaWeb \u5bb9\u5668\u50cf \u201c\u9910\u5385\u201d&#xff08;\u65e2\u80fd\u5356\u73b0\u6210\u98df\u54c1&#xff0c;\u4e5f\u80fd\u6309\u8ba2\u5355\u73b0\u505a&#xff09;\u3002<\/p>\n<h4 id=\"2.%20JavaWeb%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%9A%84%E4%B8%89%E5%A4%A7%E6%A0%B8%E5%BF%83%E5%8A%9F%E8%83%BD\">2. JavaWeb \u670d\u52a1\u5668\u7684\u4e09\u5927\u6838\u5fc3\u529f\u80fd<\/h4>\n<ul>\n<li>\u8fd0\u884c Java \u7ec4\u4ef6&#xff1a;\u7ba1\u7406 Servlet\/JSP \u7684\u751f\u547d\u5468\u671f&#xff08;\u521b\u5efa\u3001\u8c03\u7528\u3001\u9500\u6bc1&#xff09;&#xff0c;\u8fd9\u662f\u4e0e\u9759\u6001\u670d\u52a1\u5668\u7684\u6838\u5fc3\u533a\u522b&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u89e3\u6790 HTTP \u534f\u8bae&#xff1a;\u5c06\u6d4f\u89c8\u5668\u53d1\u9001\u7684\u539f\u59cb\u5b57\u8282\u6d41\u89e3\u6790\u4e3aHttpServletRequest\u5bf9\u8c61&#xff08;\u5c01\u88c5\u8bf7\u6c42\u6570\u636e&#xff09;&#xff0c;\u5e76\u5c06 Servlet \u7684\u5904\u7406\u7ed3\u679c\u5c01\u88c5\u4e3a HTTP \u54cd\u5e94&#xff08;HttpServletResponse&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u90e8\u7f72 Web \u5e94\u7528&#xff1a;\u63d0\u4f9b\u6807\u51c6\u5316\u76ee\u5f55\u7ed3\u6784&#xff0c;\u7edf\u4e00\u7ba1\u7406\u5e94\u7528\u7684\u8d44\u6e90&#xff08;\u5982 HTML \u653e\u5728\u6839\u76ee\u5f55&#xff0c;Java \u7c7b\u653e\u5728WEB-INF\/classes&#xff09;\u3002<\/li>\n<\/ul>\n<h3><\/h3>\n<h3 id=\"%E4%B8%89%E3%80%81%E5%BA%95%E5%B1%82%E5%8E%9F%E7%90%86%EF%BC%9AWeb%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%A6%82%E4%BD%95%E5%B7%A5%E4%BD%9C%EF%BC%9F\">\u4e09\u3001\u5e95\u5c42\u539f\u7406&#xff1a;Web \u670d\u52a1\u5668\u5982\u4f55\u5de5\u4f5c&#xff1f;<\/h3>\n<p>\u4ee5 Tomcat \u4e3a\u4f8b&#xff0c;\u5176\u6838\u5fc3\u67b6\u6784\u548c\u8bf7\u6c42\u5904\u7406\u6d41\u7a0b\u662f\u7406\u89e3\u6240\u6709 JavaWeb \u670d\u52a1\u5668\u7684\u57fa\u7840\u3002<\/p>\n<h4 id=\"1.%20Tomcat%20%E6%A0%B8%E5%BF%83%E6%9E%B6%E6%9E%84%EF%BC%9A%E8%BF%9E%E6%8E%A5%E5%99%A8%E4%B8%8E%E5%AE%B9%E5%99%A8\">1. Tomcat \u6838\u5fc3\u67b6\u6784&#xff1a;\u8fde\u63a5\u5668\u4e0e\u5bb9\u5668<\/h4>\n<p>Tomcat \u7684\u67b6\u6784\u50cf \u201c\u524d\u53f0\u63a5\u5f85 &#043; \u540e\u53f0\u53a8\u623f\u201d&#xff0c;\u4e24\u5927\u6a21\u5757\u534f\u540c\u5de5\u4f5c&#xff1a;<\/p>\n<ul>\n<li>\u8fde\u63a5\u5668&#xff08;Connector&#xff09;&#xff1a;\u524d\u53f0\u63a5\u5f85\u5458<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u8d1f\u8d23\u76d1\u542c TCP \u7aef\u53e3&#xff08;\u9ed8\u8ba4 8080&#xff09;&#xff0c;\u63a5\u6536\u6d4f\u89c8\u5668\u7684\u8fde\u63a5&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u5c06 TCP \u5b57\u8282\u6d41\u89e3\u6790\u4e3a HTTP \u8bf7\u6c42&#xff08;\u63d0\u53d6 URL\u3001\u53c2\u6570\u7b49&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u5c06\u5bb9\u5668\u8fd4\u56de\u7684\u7ed3\u679c\u5c01\u88c5\u4e3a HTTP \u54cd\u5e94&#xff0c;\u901a\u8fc7 TCP \u53d1\u9001\u7ed9\u6d4f\u89c8\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\u5bb9\u5668&#xff08;Container&#xff09;&#xff1a;\u540e\u53f0\u53a8\u623f<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u7ba1\u7406 Web \u5e94\u7528&#xff08;\u5982myapp&#xff09;\u548c Servlet&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u6839\u636e\u8bf7\u6c42\u8def\u5f84\u627e\u5230\u5bf9\u5e94\u7684 Servlet&#xff0c;\u8c03\u7528\u5176\u65b9\u6cd5\u5904\u7406\u4e1a\u52a1&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u63d0\u4f9bHttpServletRequest\u548cHttpServletResponse\u5bf9\u8c61&#xff0c;\u4f5c\u4e3a Servlet \u4e0e\u5bb9\u5668\u7684\u4ea4\u4e92\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u534f\u4f5c\u6d41\u7a0b&#xff1a;<\/p>\n<p>\u6d4f\u89c8\u5668 \u2192 TCP\u8fde\u63a5 \u2192 \u8fde\u63a5\u5668&#xff08;\u89e3\u6790HTTP\u8bf7\u6c42&#xff09; \u2192 \u5bb9\u5668&#xff08;\u8c03\u7528Servlet&#xff09; \u2192 \u8fde\u63a5\u5668&#xff08;\u5c01\u88c5HTTP\u54cd\u5e94&#xff09; \u2192 \u6d4f\u89c8\u5668<\/p>\n<h4 id=\"2.%20HTTP%20%E8%AF%B7%E6%B1%82%E5%A4%84%E7%90%86%E7%9A%84%E5%AE%8C%E6%95%B4%E6%B5%81%E7%A8%8B%EF%BC%88%E4%BB%A5%E7%99%BB%E5%BD%95%E8%AF%B7%E6%B1%82%E4%B8%BA%E4%BE%8B%EF%BC%89\">2. HTTP \u8bf7\u6c42\u5904\u7406\u7684\u5b8c\u6574\u6d41\u7a0b&#xff08;\u4ee5\u767b\u5f55\u8bf7\u6c42\u4e3a\u4f8b&#xff09;<\/h4>\n<p>\u5f53\u7528\u6237\u8bbf\u95eehttp:\/\/localhost:8080\/myapp\/login\u5e76\u63d0\u4ea4\u8868\u5355\u65f6&#xff0c;Tomcat \u7684\u5904\u7406\u6b65\u9aa4\u5982\u4e0b&#xff1a;<\/p>\n<h5 id=\"%EF%BC%881%EF%BC%89%E5%BB%BA%E7%AB%8B%20TCP%20%E8%BF%9E%E6%8E%A5%EF%BC%88%E4%BC%A0%E8%BE%93%E5%B1%82%EF%BC%89\">&#xff08;1&#xff09;\u5efa\u7acb TCP \u8fde\u63a5&#xff08;\u4f20\u8f93\u5c42&#xff09;<\/h5>\n<ul>\n<li>\u6d4f\u89c8\u5668\u901a\u8fc7 DNS \u89e3\u6790localhost\u4e3a127.0.0.1&#xff0c;\u5411\u8be5 IP \u7684 8080 \u7aef\u53e3\u53d1\u8d77 TCP \u8fde\u63a5&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>Tomcat \u7684\u8fde\u63a5\u5668&#xff08;Coyote&#xff09;\u63a5\u6536\u8fde\u63a5&#xff0c;\u901a\u8fc7 TCP \u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u53ef\u9760\u4f20\u8f93\u901a\u9053\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%882%EF%BC%89%E8%A7%A3%E6%9E%90%20HTTP%20%E8%AF%B7%E6%B1%82%EF%BC%88%E5%BA%94%E7%94%A8%E5%B1%82%EF%BC%89\">&#xff08;2&#xff09;\u89e3\u6790 HTTP \u8bf7\u6c42&#xff08;\u5e94\u7528\u5c42&#xff09;<\/h5>\n<p>\u8fde\u63a5\u5668\u8bfb\u53d6\u8bf7\u6c42\u6570\u636e&#xff0c;\u6309 HTTP \u683c\u5f0f\u89e3\u6790&#xff1a;<\/p>\n<ul>\n<li>\u4ece\u8bf7\u6c42\u884c\u63d0\u53d6 POST\/myapp\/login HTTP\/1.1&#xff0c;\u786e\u5b9a\u8bf7\u6c42\u65b9\u6cd5&#xff08;POST&#xff09;\u548c\u76ee\u6807\u8def\u5f84&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4ece\u8bf7\u6c42\u5934\u83b7\u53d6Content-Type: application\/x-www-form-urlencoded&#xff0c;\u77e5\u9053\u8bf7\u6c42\u4f53\u662f\u8868\u5355\u6570\u636e&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u6309Content-Length\u8bfb\u53d6\u8bf7\u6c42\u4f53username&#061;admin&amp;password&#061;123&#xff0c;\u89e3\u6790\u4e3a\u952e\u503c\u5bf9\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%883%EF%BC%89%E5%8C%B9%E9%85%8D%E5%B9%B6%E8%B0%83%E7%94%A8%20Servlet%EF%BC%88%E4%B8%9A%E5%8A%A1%E5%A4%84%E7%90%86%EF%BC%89\">&#xff08;3&#xff09;\u5339\u914d\u5e76\u8c03\u7528 Servlet&#xff08;\u4e1a\u52a1\u5904\u7406&#xff09;<\/h5>\n<p>\u5b9a\u4f4d\u5e94\u7528&#xff1a;\u5bb9\u5668\u6839\u636e\/myapp\u627e\u5230\u90e8\u7f72\u7684 Web \u5e94\u7528&#xff08;webapps\/myapp\u76ee\u5f55&#xff09;&#xff1b;<\/p>\n<\/p>\n<p>\u5339\u914d Servlet&#xff1a;\u6839\u636e\/login\u627e\u5230\u901a\u8fc7&#064;WebServlet(&#034;\/login&#034;)\u914d\u7f6e\u7684 LoginServlet&#xff1b;<\/p>\n<\/p>\n<p>\u8c03\u7528\u65b9\u6cd5&#xff1a;<\/p>\n<ul>\n<li>\n<ul>\n<li>\u5bb9\u5668\u521b\u5efaHttpServletRequest&#xff08;\u5c01\u88c5\u89e3\u6790\u540e\u7684\u53c2\u6570&#xff09;\u548cHttpServletResponse&#xff08;\u7528\u4e8e\u5199\u54cd\u5e94&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u8c03\u7528 LoginServlet \u7684service()\u65b9\u6cd5&#xff0c;\u6839\u636e\u8bf7\u6c42\u65b9\u6cd5&#xff08;POST&#xff09;\u81ea\u52a8\u8f6c\u53d1\u5230doPost()&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>Servlet \u901a\u8fc7request.getParameter(&#034;username&#034;)\u83b7\u53d6\u53c2\u6570&#xff0c;\u6267\u884c\u767b\u5f55\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%884%EF%BC%89%E7%94%9F%E6%88%90%E5%B9%B6%E8%BF%94%E5%9B%9E%E5%93%8D%E5%BA%94\">&#xff08;4&#xff09;\u751f\u6210\u5e76\u8fd4\u56de\u54cd\u5e94<\/h5>\n<ul>\n<li>Servlet \u5904\u7406\u5b8c\u6210\u540e&#xff0c;\u5c06\u7ed3\u679c&#xff08;\u5982 \u201c\u767b\u5f55\u6210\u529f\u201d&#xff09;\u5199\u5165HttpServletResponse&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u5bb9\u5668\u901a\u77e5\u8fde\u63a5\u5668 \u201c\u5904\u7406\u5b8c\u6210\u201d&#xff0c;\u8fde\u63a5\u5668\u5c01\u88c5\u54cd\u5e94&#xff08;\u54cd\u5e94\u884c200 OK\u3001\u54cd\u5e94\u4f53&lt;h1&gt;\u767b\u5f55\u6210\u529f&lt;\/h1&gt;&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u901a\u8fc7 TCP \u8fde\u63a5\u53d1\u9001\u54cd\u5e94&#xff0c;\u5b8c\u6210\u540e\u6309 HTTP\/1.1 \u89c4\u5219\u4fdd\u6301\u8fde\u63a5&#xff08;\u6216\u56db\u6b21\u6325\u624b\u65ad\u5f00&#xff09;<\/li>\n<\/ul>\n<h4 id=\"3.%20Servlet%20%E7%94%9F%E5%91%BD%E5%91%A8%E6%9C%9F%E7%AE%A1%E7%90%86%EF%BC%9A%E5%AE%B9%E5%99%A8%E7%9A%84%20%E2%80%9C%E8%B5%84%E6%BA%90%E8%B0%83%E5%BA%A6%E2%80%9D\">3. Servlet \u751f\u547d\u5468\u671f\u7ba1\u7406&#xff1a;\u5bb9\u5668\u7684 \u201c\u8d44\u6e90\u8c03\u5ea6\u201d<\/h4>\n<p>Servlet \u7684\u751f\u547d\u5468\u671f\u5b8c\u5168\u7531\u5bb9\u5668\u63a7\u5236&#xff0c;\u9075\u5faa \u201c\u6309\u9700\u521b\u5efa\u3001\u590d\u7528\u5b9e\u4f8b\u201d \u539f\u5219&#xff1a;<\/p>\n<ul>\n<li>\u521d\u59cb\u5316&#xff08;init ()&#xff09;&#xff1a;\u7b2c\u4e00\u6b21\u8bf7\u6c42 Servlet \u65f6&#xff0c;\u5bb9\u5668\u901a\u8fc7\u53cd\u5c04\u521b\u5efa\u5b9e\u4f8b&#xff0c;\u8c03\u7528init()&#xff08;\u5982\u52a0\u8f7d\u914d\u7f6e&#xff09;&#xff0c;\u4ec5\u6267\u884c\u4e00\u6b21&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u670d\u52a1&#xff08;service ()&#xff09;&#xff1a;\u6bcf\u6b21\u8bf7\u6c42\u90fd\u8c03\u7528service()&#xff0c;\u6839\u636e\u8bf7\u6c42\u65b9\u6cd5\u8f6c\u53d1\u5230doGet()\/doPost()&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u9500\u6bc1&#xff08;destroy ()&#xff09;&#xff1a;\u670d\u52a1\u5668\u5173\u95ed\u65f6&#xff0c;\u8c03\u7528destroy()\u91ca\u653e\u8d44\u6e90&#xff08;\u5982\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5&#xff09;&#xff0c;\u7136\u540e\u9500\u6bc1\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n<p>\u6ce8\u610f&#xff1a;Servlet \u662f\u5355\u4f8b\u591a\u7ebf\u7a0b\u2014\u2014 \u4e00\u4e2a\u5b9e\u4f8b\u5904\u7406\u6240\u6709\u8bf7\u6c42&#xff0c;\u9700\u907f\u514d\u4f7f\u7528\u6210\u5458\u53d8\u91cf&#xff08;\u53ef\u80fd\u5f15\u53d1\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898&#xff09;\u3002<\/p>\n<\/p>\n<h3 id=\"%E5%9B%9B%E3%80%81%E8%A1%A8%E5%8D%95%E6%8F%90%E4%BA%A4%E7%9A%84%E5%AE%8C%E6%95%B4%E5%A4%84%E7%90%86%E6%B5%81%E7%A8%8B%EF%BC%88%E5%AE%9E%E6%88%98%E8%A7%A3%E6%9E%90%EF%BC%89\">\u56db\u3001\u8868\u5355\u63d0\u4ea4\u7684\u5b8c\u6574\u5904\u7406\u6d41\u7a0b<\/h3>\n<p>\u8868\u5355\u662f\u7528\u6237\u4e0e Web \u5e94\u7528\u4ea4\u4e92\u7684\u4e3b\u8981\u65b9\u5f0f&#xff0c;\u4ece\u63d0\u4ea4\u5230\u54cd\u5e94\u7684\u6bcf\u4e00\u6b65\u90fd\u4f53\u73b0\u4e86 Web \u670d\u52a1\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h4 id=\"1.%20%E5%89%8D%E7%AB%AF%E8%A1%A8%E5%8D%95%E5%87%86%E5%A4%87%EF%BC%88login.html%EF%BC%89\">1. \u524d\u7aef\u8868\u5355\u51c6\u5907&#xff08;login.html&#xff09;<\/h4>\n<p>&lt;form action&#061;&#034;\/myapp\/login&#034; method&#061;&#034;post&#034;&gt;<\/p>\n<p>&lt;input type&#061;&#034;text&#034; name&#061;&#034;username&#034; placeholder&#061;&#034;\u7528\u6237\u540d&#034;&gt;<\/p>\n<p>&lt;input type&#061;&#034;password&#034; name&#061;&#034;password&#034; placeholder&#061;&#034;\u5bc6\u7801&#034;&gt;<\/p>\n<p>&lt;button type&#061;&#034;submit&#034;&gt;\u767b\u5f55&lt;\/button&gt;<\/p>\n<p>&lt;\/form&gt; <\/p>\n<ul>\n<li>action&#xff1a;\u63d0\u4ea4\u8def\u5f84&#xff08;\/myapp\u662f\u5e94\u7528\u540d&#xff0c;\/login\u662f Servlet \u8def\u5f84&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>method&#xff1a;post&#xff08;\u53c2\u6570\u5728\u8bf7\u6c42\u4f53&#xff0c;\u5b89\u5168&#xff09;&#xff0c;get&#xff08;\u53c2\u6570\u5728 URL&#xff0c;\u9002\u5408\u67e5\u8be2&#xff09;\u3002<\/li>\n<\/ul>\n<h4 id=\"2.%20%E8%A1%A8%E5%8D%95%E6%8F%90%E4%BA%A4%E5%88%B0%E5%93%8D%E5%BA%94%E7%9A%84%E5%BA%95%E5%B1%82%E6%AD%A5%E9%AA%A4\">2. \u8868\u5355\u63d0\u4ea4\u5230\u54cd\u5e94\u7684\u5e95\u5c42\u6b65\u9aa4<\/h4>\n<h5 id=\"%EF%BC%881%EF%BC%89%E6%B5%8F%E8%A7%88%E5%99%A8%E5%A4%84%E7%90%86%EF%BC%88%E5%AE%A2%E6%88%B7%E7%AB%AF%EF%BC%89\">&#xff08;1&#xff09;\u6d4f\u89c8\u5668\u5904\u7406&#xff08;\u5ba2\u6237\u7aef&#xff09;<\/h5>\n<p>\u7528\u6237\u70b9\u51fb \u201c\u63d0\u4ea4\u201d \u540e&#xff0c;\u6d4f\u89c8\u5668\u81ea\u52a8\u5b8c\u6210&#xff1a;<\/p>\n<p>\u9a8c\u8bc1\u8868\u5355&#xff08;\u5982\u5fc5\u586b\u9879&#xff09;&#xff0c;\u62fc\u63a5\u53c2\u6570&#xff08;username&#061;admin&amp;password&#061;123&#xff09;&#xff1b;<\/p>\n<\/p>\n<p>\u6309method\u751f\u6210 HTTP \u8bf7\u6c42&#xff1a;<\/p>\n<ul>\n<li>\n<ul>\n<li>POST&#xff1a;\u53c2\u6570\u653e\u5165\u8bf7\u6c42\u4f53&#xff0c;\u8bf7\u6c42\u5934Content-Type: application\/x-www-form-urlencoded&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>GET&#xff1a;\u53c2\u6570\u62fc\u63a5\u5728 URL&#xff08;\/myapp\/login?username&#061;admin&amp;password&#061;123&#xff09;&#xff0c;\u65e0\u8bf7\u6c42\u4f53<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u00a0\u901a\u8fc7 DNS \u89e3\u6790localhost\u4e3a127.0.0.1&#xff0c;\u5411 8080 \u7aef\u53e3\u53d1\u8d77 TCP \u8fde\u63a5&#xff0c;\u53d1\u9001 HTTP \u8bf7\u6c42\u3002<\/p>\n<h5 id=\"%EF%BC%882%EF%BC%89Tomcat%20%E5%A4%84%E7%90%86%EF%BC%88%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%AB%AF%EF%BC%89\">&#xff08;2&#xff09;Tomcat \u5904\u7406&#xff08;\u670d\u52a1\u5668\u7aef&#xff09;<\/h5>\n<p>\u8fde\u63a5\u5668\u89e3\u6790\u8bf7\u6c42&#xff1a;<\/p>\n<ul>\n<li>\n<ul>\n<li>\u8bfb\u53d6\u8bf7\u6c42\u6570\u636e&#xff0c;\u89e3\u6790\u51fa\u5e94\u7528\u540d&#xff08;myapp&#xff09;\u3001Servlet \u8def\u5f84&#xff08;\/login&#xff09;\u3001\u53c2\u6570&#xff08;username&#061;admin&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u5c06\u53c2\u6570\u5b58\u50a8\u5230HttpServletRequest\u7684\u5185\u90e8 Map&#xff08;\u952e\u503c\u5bf9\u7ed3\u6784&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&#064;WebServlet(&#034;\/login&#034;)<\/p>\n<p>public class LoginServlet extends HttpServlet {<\/p>\n<p>&#064;Override<\/p>\n<p>protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {<\/p>\n<p>\/\/ \u8bbe\u7f6e\u7f16\u7801&#xff08;\u89e3\u51b3\u4e2d\u6587\u4e71\u7801&#xff09;<\/p>\n<p>req.setCharacterEncoding(&#034;UTF-8&#034;);<\/p>\n<p>resp.setContentType(&#034;text\/html;charset&#061;UTF-8&#034;);<\/p>\n<p>\/\/ \u4ece\u8bf7\u6c42\u4e2d\u83b7\u53d6\u53c2\u6570&#xff08;\u5bb9\u5668\u5df2\u89e3\u6790\u5e76\u5b58\u5165request&#xff09;<\/p>\n<p>String username &#061; req.getParameter(&#034;username&#034;);<\/p>\n<p>String password &#061; req.getParameter(&#034;password&#034;);<\/p>\n<p>\/\/ \u4e1a\u52a1\u903b\u8f91&#xff08;\u6a21\u62df\u6570\u636e\u5e93\u9a8c\u8bc1&#xff09;<\/p>\n<p>String result &#061; &#034;admin&#034;.equals(username) &amp;&amp; &#034;123&#034;.equals(password)<\/p>\n<p>? &#034;\u767b\u5f55\u6210\u529f&#xff01;\u6b22\u8fce\u60a8&#xff0c;&#034; &#043; username<\/p>\n<p>: &#034;\u767b\u5f55\u5931\u8d25&#xff1a;\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef&#034;;<\/p>\n<p>\/\/ \u5199\u5165\u54cd\u5e94&#xff08;\u5bb9\u5668\u540e\u7eed\u4f1a\u5c01\u88c5\u4e3aHTTP\u54cd\u5e94&#xff09;<\/p>\n<p>resp.getWriter().write(&#034;&lt;h1&gt;&#034; &#043; result &#043; &#034;&lt;\/h1&gt;&#034;);<\/p>\n<p>}<\/p>\n<p>} <\/p>\n<p>\u6d4f\u89c8\u5668\u6e32\u67d3\u54cd\u5e94&#xff1a;<\/p>\n<ul>\n<li>\n<ul>\n<li>\u63a5\u6536\u54cd\u5e94\u540e&#xff0c;\u6309Content-Type: text\/html\u8bc6\u522b\u4e3a HTML&#xff0c;\u89e3\u6790\u5e76\u663e\u793a&lt;h1&gt;\u767b\u5f55\u6210\u529f&lt;\/h1&gt;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u82e5\u54cd\u5e94\u662f302 Redirect&#xff0c;\u5219\u81ea\u52a8\u8df3\u8f6c\u5230\u6307\u5b9a\u9875\u9762&#xff08;\u5982\u767b\u5f55\u6210\u529f\u540e\u8df3\u8f6c\u5230\u9996\u9875&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"3.%20%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98%E5%8F%8A%E8%A7%A3%E5%86%B3\">3. \u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3<\/h4>\n<ul>\n<li>\u4e2d\u6587\u4e71\u7801&#xff1a;POST \u8bf7\u6c42\u9700\u5728doPost()\u4e2d\u8bbe\u7f6ereq.setCharacterEncoding(&#034;UTF-8&#034;)&#xff0c;\u54cd\u5e94\u9700resp.setContentType(&#034;text\/html;charset&#061;UTF-8&#034;)&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>404 \u9519\u8bef&#xff1a;\u68c0\u67e5action\u8def\u5f84\u662f\u5426\u6b63\u786e&#xff08;\u5982\/myapp\/login\u662f\u5426\u5bf9\u5e94&#064;WebServlet(&#034;\/login&#034;)&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>500 \u9519\u8bef&#xff1a;Servlet \u4ee3\u7801\u5f02\u5e38&#xff08;\u5982\u7a7a\u6307\u9488&#xff09;&#xff0c;\u67e5\u770b Tomcat \u7684logs\/catalina.out\u65e5\u5fd7\u3002<\/li>\n<\/ul>\n<h3><\/h3>\n<h3 id=\"%E4%BA%94%E3%80%81%E4%B8%BB%E6%B5%81%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%E4%BB%8B%E7%BB%8D\"><span style=\"color:#0d0016\">\u4e94\u3001\u4e3b\u6d41 Web \u670d\u52a1\u5668\u4ecb\u7ecd<\/span><\/h3>\n<p>\u6839\u636e\u5e94\u7528\u89c4\u6a21\u548c\u9700\u6c42&#xff0c;JavaWeb \u670d\u52a1\u5668\u5206\u4e3a\u8f7b\u91cf\u7ea7\u548c\u4f01\u4e1a\u7ea7\u4e24\u7c7b\u3002<\/p>\n<h4 id=\"1.%20%E8%BD%BB%E9%87%8F%E7%BA%A7%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%88%E5%BC%80%E5%8F%91%E4%B8%8E%E4%B8%AD%E5%B0%8F%E5%BA%94%E7%94%A8%EF%BC%89\">1. \u8f7b\u91cf\u7ea7 Web \u670d\u52a1\u5668&#xff08;\u5f00\u53d1\u4e0e\u4e2d\u5c0f\u5e94\u7528&#xff09;<\/h4>\n<h5 id=\"%EF%BC%881%EF%BC%89Tomcat\">&#xff08;1&#xff09;Tomcat<\/h5>\n<ul>\n<li>\u7279\u70b9&#xff1a;\u5f00\u6e90\u514d\u8d39&#xff0c;\u652f\u6301 Servlet\/JSP \u89c4\u8303&#xff0c;\u662f JavaWeb \u5f00\u53d1\u7684 \u201c\u4e8b\u5b9e\u6807\u51c6\u201d&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f18\u52bf&#xff1a;<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li><span style=\"color:#fe2c24\">\u5185\u7f6e\u5728 Spring Boot&#xff0c;\u65e0\u9700\u5355\u72ec\u90e8\u7f72<\/span>&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u6587\u6863\u4e30\u5bcc&#xff0c;\u793e\u533a\u6d3b\u8dc3&#xff08;\u95ee\u9898\u6613\u89e3\u51b3&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>\u652f\u6301\u70ed\u90e8\u7f72&#xff08;\u5f00\u53d1\u65f6\u4fee\u6539\u4ee3\u7801\u65e0\u9700\u91cd\u542f&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u5f00\u53d1\u73af\u5883\u3001\u4f01\u4e1a\u5b98\u7f51\u3001\u7ba1\u7406\u7cfb\u7edf\u7b49\u4e2d\u5c0f\u5e94\u7528\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%882%EF%BC%89Jetty\">&#xff08;2&#xff09;Jetty<\/h5>\n<ul>\n<li>\u7279\u70b9&#xff1a;\u6bd4 Tomcat \u66f4\u8f7b\u91cf&#xff0c;\u542f\u52a8\u901f\u5ea6\u5feb&#xff08;\u7ea6 Tomcat \u7684 1\/3&#xff09;&#xff0c;\u652f\u6301\u5d4c\u5165\u5f0f\u90e8\u7f72&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f18\u52bf&#xff1a;\u67b6\u6784\u7075\u6d3b&#xff08;\u53ef\u6309\u9700\u88c1\u526a\u6a21\u5757&#xff09;&#xff0c;\u9002\u5408\u5fae\u670d\u52a1&#xff08;\u5982 Spring Cloud&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u9891\u7e41\u542f\u52a8\u7684\u573a\u666f&#xff08;\u5982\u5355\u5143\u6d4b\u8bd5&#xff09;\u3001\u8d44\u6e90\u53d7\u9650\u7684\u5fae\u670d\u52a1\u3002<\/li>\n<\/ul>\n<h4 id=\"2.%20%E4%BC%81%E4%B8%9A%E7%BA%A7%20Web%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%88%E5%A4%A7%E5%9E%8B%E5%BA%94%E7%94%A8%EF%BC%89\">2. \u4f01\u4e1a\u7ea7 Web \u670d\u52a1\u5668&#xff08;\u5927\u578b\u5e94\u7528&#xff09;<\/h4>\n<h5 id=\"%EF%BC%881%EF%BC%89WebLogic%EF%BC%88Oracle%EF%BC%89\">&#xff08;1&#xff09;WebLogic&#xff08;Oracle&#xff09;<\/h5>\n<ul>\n<li>\u7279\u70b9&#xff1a;\u95ed\u6e90\u6536\u8d39&#xff0c;\u652f\u6301\u5b8c\u6574 JavaEE \u89c4\u8303&#xff08;\u5982 EJB\u3001JMS&#xff09;&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f01\u4e1a\u7ea7\u529f\u80fd&#xff1a;\u96c6\u7fa4\u90e8\u7f72\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u5206\u5e03\u5f0f\u4e8b\u52a1\u3001\u5b89\u5168\u7ba1\u7406&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u94f6\u884c\u6838\u5fc3\u7cfb\u7edf\u3001\u7535\u4fe1\u4e1a\u52a1\u5e73\u53f0&#xff08;\u9700\u5382\u5546\u6280\u672f\u652f\u6301&#xff09;\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%882%EF%BC%89WebSphere%EF%BC%88IBM%EF%BC%89\">&#xff08;2&#xff09;WebSphere&#xff08;IBM&#xff09;<\/h5>\n<ul>\n<li>\u7279\u70b9&#xff1a;\u4e0e IBM \u751f\u6001&#xff08;DB2\u3001AIX&#xff09;\u6df1\u5ea6\u96c6\u6210&#xff0c;\u63d0\u4f9b\u5168\u94fe\u8def\u76d1\u63a7&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f18\u52bf&#xff1a;\u9ad8\u53ef\u7528&#xff08;99.999% uptime&#xff09;\u3001\u652f\u6301\u6d77\u91cf\u5e76\u53d1&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u91d1\u878d\u3001\u653f\u5e9c\u7b49\u5bf9\u7a33\u5b9a\u6027\u8981\u6c42\u6781\u9ad8\u7684\u6838\u5fc3\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<h5 id=\"%EF%BC%883%EF%BC%89WildFly%EF%BC%88%E5%8E%9F%20JBoss%EF%BC%89\">&#xff08;3&#xff09;WildFly&#xff08;\u539f JBoss&#xff09;<\/h5>\n<ul>\n<li>\u7279\u70b9&#xff1a;\u5f00\u6e90\u514d\u8d39&#xff0c;\u652f\u6301 JavaEE \u89c4\u8303&#xff0c;\u53ef\u6269\u5c55\u4f01\u4e1a\u7ea7\u529f\u80fd&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u4f18\u52bf&#xff1a;\u6bd4 WebLogic \u8f7b\u91cf&#xff0c;\u9002\u5408\u9884\u7b97\u6709\u9650\u7684\u4e2d\u578b\u4f01\u4e1a&#xff1b;<\/li>\n<\/ul>\n<ul>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u9700\u8981\u96c6\u7fa4\u548c\u4e8b\u52a1\u7ba1\u7406&#xff0c;\u4f46\u65e0\u9700\u5546\u4e1a\u652f\u6301\u7684\u5e94\u7528\u3002<\/li>\n<\/ul>\n<h3><\/h3>\n<h3 id=\"%E5%85%AD%E3%80%81%E5%AE%9E%E6%88%98%EF%BC%9ATomcat%20%E5%AE%89%E8%A3%85%E4%B8%8E%E8%A1%A8%E5%8D%95%E5%BA%94%E7%94%A8%E9%83%A8%E7%BD%B2\">\u516d\u3001\u5b9e\u6218&#xff1a;Tomcat \u5b89\u88c5\u4e0e\u8868\u5355\u5e94\u7528\u90e8\u7f72<\/h3>\n<h4 id=\"1.%20Tomcat%20%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AE%EF%BC%88Windows%EF%BC%89\">1. Tomcat \u5b89\u88c5\u4e0e\u914d\u7f6e&#xff08;Windows&#xff09;<\/h4>\n<p>\u4e0b\u8f7d&#xff1a;\u4eceTomcat \u5b98\u7f51\u4e0b\u8f7d 9.x \u7248\u672c&#xff08;\u9002\u914d Java 8&#043;&#xff09;&#xff1b;<\/p>\n<\/p>\n<p>\u5b89\u88c5&#xff1a;\u89e3\u538b\u5230D:\\\\tomcat-9.0.80&#xff08;\u8def\u5f84\u65e0\u4e2d\u6587 \/ \u7a7a\u683c&#xff09;&#xff1b;mac\u5176\u5b9e \u5dee\u4e0d\u591a<\/p>\n<\/p>\n<p>\u6838\u5fc3\u76ee\u5f55&#xff1a;<\/p>\n<ul>\n<li>\n<ul>\n<li>bin\/&#xff1a;startup.bat&#xff08;\u542f\u52a8&#xff09;\u3001shutdown.bat&#xff08;\u505c\u6b62&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>webapps\/&#xff1a;\u5e94\u7528\u90e8\u7f72\u76ee\u5f55&#xff08;\u653e\u5165\u5e94\u7528\u5373\u53ef\u8bbf\u95ee&#xff09;&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>conf\/server.xml&#xff1a;\u914d\u7f6e\u7aef\u53e3&#xff08;\u9ed8\u8ba4 8080&#xff09;\u3001\u865a\u62df\u4e3b\u673a\u7b49&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<ul>\n<li>logs\/&#xff1a;\u65e5\u5fd7\u6587\u4ef6&#xff08;catalina.out\u6392\u67e5\u542f\u52a8\u9519\u8bef&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u542f\u52a8\u9a8c\u8bc1&#xff1a;\u53cc\u51fbbin\/startup.bat&#xff0c;\u8bbf\u95eehttp:\/\/localhost:8080&#xff0c;\u663e\u793a Tomcat \u6b22\u8fce\u9875\u5373\u6210\u529f\u3002<\/p>\n<h4 id=\"2.%20%E8%A1%A8%E5%8D%95%E5%BA%94%E7%94%A8%E9%83%A8%E7%BD%B2%E5%AE%9E%E6%88%98\">2. \u8868\u5355\u5e94\u7528\u90e8\u7f72\u5b9e\u6218<\/h4>\n<h5 id=\"%EF%BC%881%EF%BC%89%E5%88%9B%E5%BB%BA%E5%BA%94%E7%94%A8%E7%9B%AE%E5%BD%95\">&#xff08;1&#xff09;\u521b\u5efa\u5e94\u7528\u76ee\u5f55<\/h5>\n<p>webapps\/myapp\/ # \u5e94\u7528\u6839\u76ee\u5f55<\/p>\n<p>\u251c\u2500 login.html # \u767b\u5f55\u8868\u5355<\/p>\n<p>\u2514\u2500 WEB-INF\/<\/p>\n<p>\u251c\u2500 classes\/ # \u5b58\u653e\u7f16\u8bd1\u540e\u7684Servlet<\/p>\n<p>\u2502 \u2514\u2500 LoginServlet.class<\/p>\n<p>\u2514\u2500 lib\/ # \u4f9d\u8d56jar\u5305&#xff08;\u5982JSTL&#xff09;<\/p>\n<h5 id=\"%EF%BC%882%EF%BC%89%E7%BC%96%E5%86%99%E5%89%8D%E7%AB%AF%E8%A1%A8%E5%8D%95%EF%BC%88login.html%EF%BC%89\">&#xff08;2&#xff09;\u7f16\u5199\u524d\u7aef\u8868\u5355&#xff08;login.html&#xff09;<\/h5>\n<p>&lt;!DOCTYPE html&gt;<\/p>\n<p>&lt;html&gt;<\/p>\n<p>&lt;body&gt;<\/p>\n<p>&lt;form action&#061;&#034;\/myapp\/login&#034; method&#061;&#034;post&#034;&gt;<\/p>\n<p>&lt;label&gt;\u7528\u6237\u540d&#xff1a;&lt;\/label&gt;<\/p>\n<p>&lt;input type&#061;&#034;text&#034; name&#061;&#034;username&#034; required&gt;<\/p>\n<p>&lt;br&gt;<\/p>\n<p>&lt;label&gt;\u5bc6\u7801&#xff1a;&lt;\/label&gt;<\/p>\n<p>&lt;input type&#061;&#034;password&#034; name&#061;&#034;password&#034; required&gt;<\/p>\n<p>&lt;br&gt;<\/p>\n<p>&lt;button type&#061;&#034;submit&#034;&gt;\u767b\u5f55&lt;\/button&gt;<\/p>\n<p>&lt;\/form&gt;<\/p>\n<p>&lt;\/body&gt;<\/p>\n<p>&lt;\/html&gt; <\/p>\n<h5 id=\"%EF%BC%883%EF%BC%89%E7%BC%96%E5%86%99%E5%B9%B6%E7%BC%96%E8%AF%91%20Servlet\">&#xff08;3&#xff09;\u7f16\u5199\u5e76\u7f16\u8bd1 Servlet<\/h5>\n<p>LoginServlet.java&#xff1a;<\/p>\n<p>import javax.servlet.annotation.WebServlet;<\/p>\n<p>import javax.servlet.http.HttpServlet;<\/p>\n<p>import javax.servlet.http.HttpServletRequest;<\/p>\n<p>import javax.servlet.http.HttpServletResponse;<\/p>\n<p>import java.io.IOException;<\/p>\n<p>&#064;WebServlet(&#034;\/login&#034;) \/\/ \u6ce8\u89e3\u914d\u7f6e\u8bbf\u95ee\u8def\u5f84<\/p>\n<p>public class LoginServlet extends HttpServlet {<\/p>\n<p>&#064;Override<\/p>\n<p>protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {<\/p>\n<p>req.setCharacterEncoding(&#034;UTF-8&#034;);<\/p>\n<p>resp.setContentType(&#034;text\/html;charset&#061;UTF-8&#034;);<\/p>\n<p>String username &#061; req.getParameter(&#034;username&#034;);<\/p>\n<p>String password &#061; req.getParameter(&#034;password&#034;);<\/p>\n<p>String result 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