{"id":4264,"date":"2019-05-23T12:08:30","date_gmt":"2019-05-23T04:08:30","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=4264"},"modified":"2019-05-23T12:08:30","modified_gmt":"2019-05-23T04:08:30","slug":"servlet-%e8%a7%84%e8%8c%83%e5%88%b0%e5%ba%95%e8%a7%84%e8%8c%83%e4%ba%86%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4264","title":{"rendered":"Servlet \u89c4\u8303\u5230\u5e95\u89c4\u8303\u4e86\u4ec0\u4e48\uff1f"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4ece Jar \u5305\u4e0a\u6765\u8bf4\uff0cServlet \u89c4\u8303\u5c31\u662f\u4e24\u4e2a Jar \u6587\u4ef6\u3002servlet-api.jar \u548c jsp-api.jar\uff0cJsp \u4e5f\u662f\u4e00\u79cd Servlet\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u5305\u4e0a\u6765\u8bf4\uff0c\u5c31\u662f javax.servlet \u548c javax.servlet.http \u4e24\u4e2a\u5305\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u63a5\u53e3\u6765\u8bf4\uff0c\u5c31\u662f\u89c4\u8303\u4e86 Servlet \u63a5\u53e3\u3001Filter \u63a5\u53e3\u3001Listener \u63a5\u53e3\u3001ServletRequest \u63a5\u53e3\u3001ServletResponse \u63a5\u53e3\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u5916\u5c31\u662f\u89c4\u8303\u4e86 Servlet \u5bb9\u5668\uff0c\u89c4\u8303\u4e86\u5bf9 HTTP \u534f\u8bae\u505a\u9762\u5411\u5bf9\u8c61\u7684\u5c01\u88c5\u3002\u89c4\u8303\u4e86 Servlet \u7531\u5bb9\u5668\u6765\u7ba1\u7406\u5176\u751f\u547d\u5468\u671f\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cServlet \u7684 Innit() destory() Service() \u65b9\u6cd5\u662f\u7531 Tomcat\u3001JBoss\u3001Weblogic \u7b49\u5bb9\u5668\u8c03\u7528\u7684\uff0c\u5e94\u7528\u7a0b\u5e8f\u662f\u4e0d\u80fd\u8c03\u7528\u7684\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/wx1.sinaimg.cn\/large\/8fa5dcfcgy1g3b49haowtj209j04jjrm.jpg\" alt=\"\" \/><figcaption>Servlet\u89c4\u8303<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Servlet \u4e5f\u89c4\u8303\u4e86\u5404\u4e2a\u63a5\u53e3\u7684\u804c\u8d23\uff1a<br><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Servle\uff1aServlet \u7684\u6838\u5fc3\uff0c\u5177\u4f53 Servlet \u4e2d\u65b9\u6cd5\u7684\u5904\u7406\u89c4\u8303\uff0cServlet \u7684\u751f\u547d\u5468\u671f\u7b49\u3002\n<\/li><li>ServletConfig:&nbsp;&nbsp;\u5c01\u88c5\u4e86\u5bf9\u5e94\u7684 Servlet \u7684\u76f8\u5173\u914d\u7f6e\u4fe1\u606f\uff0c\u5982 Servlet \u7684\u521d\u59cb\u53c2\u6570\u4ee5\u53ca Servlet \u6240\u5728\u7684\u4e0a\u4e0b\u6587\u5bf9\u8c61\uff0c\u5373ServletContext\u3002ServletConfig \u4e2d\u7684\u5c5e\u6027\u901a\u5e38\u5728 Servlet \u521d\u59cb\u5316\u65f6\u8fdb\u884c\u521d\u59cb\u5316\u3002\n<\/li><li>ServletRequest:&nbsp;&nbsp;\u5c01\u88c5\u4e86\u6240\u6709\u6765\u81ea client \u7aef\u7684\u8bf7\u6c42\u4fe1\u606f\uff0c\u5982\u8bf7\u6c42\u53c2\u6570\u3001cookie\u3001attribute\u3001\u8bf7\u6c42\u7c7b\u578b\u3001\u8bf7\u6c42\u65b9\u5f0f\uff08\u5b89\u5168\u8fd8\u662f\u975e\u5b89\u5168\u7b49\uff09\u7b49\uff0c\u540c\u65f6 ServletRequest \u4e2d\u7684\u8fd8\u9700\u8981\u660e\u786e\u6307\u5b9a\u90e8\u5206\u5c5e\u6027\uff0c\u5982 \u8bf7\u6c42\u5185\u5bb9\u7684\u7f16\u7801\uff08\u53ef\u4ee5\u81ea\u5df1\u8bbe\u5b9a\uff09\u7b49\u3002\n<\/li><li>ServletResponse:&nbsp;&nbsp;\u5c01\u88c5\u4e86 server \u7aef\u8d44\u6e90\u5230 client \u7aef\u7684\u6240\u6709\u76f8\u5173\u4fe1\u606f\uff0c\u5982 \u8d44\u6e90\u4f20\u8f93\u7684 buffer \u4fe1\u606f\u3001\u54cd\u5e94\u7684 url \u5730\u5740\u4fe1\u606f\u3001\u8d44\u6e90\u7684\u7f16\u7801\u4fe1\u606f\u7b49\u3002\n<\/li><li>ServletInputStream\/BufferedReader:&nbsp;&nbsp;\u8bfb\u53d6 ServletRequest \u6240\u5c01\u88c5\u7684\u4fe1\u606f\u7684 I\/O \u63a5\u53e3\uff0cServletInputStream\uff0c\u91c7\u7528\u5b57\u8282\u6d41\u7684\u65b9\u5f0f\u8bfb\u53d6\uff1bBufferedReader\uff0c\u91c7\u7528\u5b57\u7b26\u6d41\u7684\u65b9\u5f0f\u8bfb\u53d6\u3002\n<\/li><li>ServletOutputSteam\/PrintWriter:&nbsp;&nbsp;\u5c06\u8d44\u6e90\u5199\u5165\u5230 client \u7684 I\/O \u63a5\u53e3\u3002ServletOutputSteam \u91c7\u7528\u5b57\u8282\u6d41\u7684\u65b9\u5f0f\u8fdb\u884c\u5199\u5165\uff1bPrintWriter \u91c7\u7528\u5b57\u7b26\u6d41\u7684\u65b9\u5f0f\u8fdb\u884c\u5199\u5165\u3002\n<\/li><li>GenericServlet:&nbsp;&nbsp;\u62bd\u8c61\u7c7b\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a Servlet \u7684\u57fa\u672c\u5b9e\u73b0\uff0c\u867d\u7136\u5b83\u662f Servlet \u7684\u57fa\u672c\u5b9e\u73b0\uff0c\u4f46\u662f\u5b83\u662f\u4e0e\u534f\u8bae\u65e0\u5173\u7684\uff08\u5373\u4e0d\u4f9d\u8d56\u4e8e http \u534f\u8bae\uff0c\u4e5f\u4e0d\u4f9d\u8d56\u4e8e\u5176\u5b83\u5e94\u7528\u5c42\u534f\u8bae\uff09\u3002\u4e00\u822c\uff0c\u57fa\u4e8e\u534f\u8bae\u7684 Servlet\uff0c\u5982 HttpServlet\uff0c\u901a\u5e38\u4f1a\u7ee7\u627f\u8be5\u7c7b\u3002\n<\/li><li>RequestDispatcher:&nbsp;&nbsp;\u6211\u4eec\u5728\u642d\u5efa web \u5e94\u7528\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u6709\u8fd9\u6837\u7684\u9700\u6c42\uff1a \u5728\u5f53\u524d Servlet\u4e2d\u5904\u7406\u5b8c\u6210\u540e\uff0c\u9700\u8981\u5bfc\u5411\uff08forward\uff09\u53e6\u5916\u4e00\u4e2a Servlet \u6216\u9759\u6001\u8d44\u6e90\uff08html\u6216text\u7b49\uff09\uff0c\u6216\u8005 \u662f\u5728\u5f53\u524d Servlet \u7684\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u5c06\u5176\u5b83\u7684\u8d44\u6e90\u5305\u542b\uff08include\uff09\u5230\u5f53\u524d\u7684 Servlet \u8d44\u6e90\u91cc\u6765\u3002\u800c RequestDisaptcher \u63a5\u53e3\u4e2d\u7684 forward \u548c inluce \u65b9\u6cd5\u5c31\u63d0\u4f9b\u4e86\u5b9e\u73b0\u4ee5\u4e0a\u4e24\u4e2a\u9700\u6c42\u7684\u673a\u5236\u3002\n<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Servlet \u672c\u8eab\u8fd8\u662f\u4e00\u4e2a WEB \u7ec4\u4ef6\u3002\u5b83\u540c EJB, JTA, JDBC, JCA, JMX, JNDI, JMS, JavaMail,  JSP \u7b49\u7ec4\u4ef6\u5171\u540c\u7ec4\u6210 J2EE \u5e73\u53f0\u6280\u672f\u89c4\u8303\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=4264\">Servlet \u89c4\u8303\u5230\u5e95\u89c4\u8303\u4e86\u4ec0\u4e48\uff1f<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4ece Jar \u5305\u4e0a\u6765\u8bf4\uff0cServlet \u89c4\u8303\u5c31\u662f\u4e24\u4e2a Jar \u6587\u4ef6\u3002servlet-api.jar \u548c jsp- [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[898,1401,1372,1768,1373],"class_list":["post-4264","post","type-post","status-publish","format-standard","hentry","category-java","tag-dispatcherservlet","tag-servlet","tag-servletforwardingcontroller","tag-servletregistrationbean"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4264"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4264\/revisions"}],"predecessor-version":[{"id":4265,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/4264\/revisions\/4265"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}