{"id":401773,"date":"2024-02-23T08:23:42","date_gmt":"2024-02-23T00:23:42","guid":{"rendered":"https:\/\/www.idc.net\/help\/401773\/"},"modified":"2024-02-23T08:23:42","modified_gmt":"2024-02-23T00:23:42","slug":"java-ee-6%e6%96%b0%e7%89%b9%e6%80%a7%e4%b9%8bservlet-3-0%e7%9a%84%e5%bc%82%e6%ad%a5%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/401773\/","title":{"rendered":"Java EE 6\u65b0\u7279\u6027\u4e4bServlet 3.0\u7684\u5f02\u6b65\u5904\u7406"},"content":{"rendered":"

\u3010\u7cbe\u9009\u8bd1\u6587\u3011\u5728\u4e4b\u524d\u7ffb\u8bd1\u7684\u7684Java EE 6\u7cfb\u5217\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86Servlet 3.0\uff1aJSR 315\u89c4\u8303\u662fServlet\u6280\u672f\u7684\u6700\u65b0\u7248\u672c\uff0c\u8fd9\u4e2a\u89c4\u8303\u7684\u8349\u6848\u4e8e2009\u5e746\u6708\u53d1\u5e03\uff0c\u5e76\u52a0\u5165\u5230Java EE 6\u5f53\u4e2d\u6765\u3002Servlet 3.0\u4e2d\u52a0\u5165\u4e86\u5bf9\u5f02\u6b65\u5904\u7406\u7684\u652f\u6301\uff0cServlet\u7ebf\u7a0b\u4e0d\u7528\u518d\u7b49\u5f85\u8d44\u6e90\u5982\u6570\u636e\u5e93\u7684\u54cd\u5e94\uff0c\u5728\u6536\u5230\u54cd\u5e94\u524d\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u5176\u5b83\u4e8b\u60c5\uff0c\u8fd9\u4e2a\u652f\u6301\u4f7f\u6301\u7eed\u5ba2\u6237\u7aef\u8fde\u63a5\u6210\u4e3a\u53ef\u80fd\uff0c\u5982\u804a\u5929\u5ba4\u5e94\u7528\u7a0b\u5e8f\uff0c\u6709\u4e86\u5f02\u6b65\u5904\u7406\u7684\u652f\u6301\uff0cServlet\u548cAjax\u7684\u642d\u914d\u4f7f\u7528\u6548\u7387\u4f1a\u66f4\u597d\u3002<\/p>\n

\u4e3a\u4e86\u786e\u4fdd\u4e3a\u540c\u6b65\u5904\u7406\u7f16\u5199\u7684\u4ee3\u7801\u4e0d\u88ab\u7528\u4e8e\u5f02\u6b65\u4e0a\u4e0b\u6587\u4e2d\uff0cServlet 3.0\u8981\u6c42\u4f60\u5728@WebServlet\u6ce8\u89e3\u4e2d\u5c06asyncSupported\u5c5e\u6027\u8bbe\u4e3atrue\uff0c\u4f60\u4e5f\u53ef\u4ee5\u5728@WebFilter\u6ce8\u89e3\u4e2d\u5c06asynchSupported\u5c5e\u6027\u8bbe\u4e3atrue\u4f7fServlet\u8fc7\u6ee4\u5668\u4e5f\u652f\u6301\u5f02\u6b65\u3002<\/p>\n

\u5f02\u6b65\u5904\u7406\u4e5f\u5305\u62ecServletRequest\u65b9\u6cd5\uff0c\u5982startAsync()\uff0c\u5b83\u4ea7\u751f\u4e00\u4e2a\u5f02\u6b65\u8bf7\u6c42\u548c\u65b0\u7684\u7c7b\uff0c\u5982AsyncContext\uff0c\u8fd9\u4e2a\u7c7b\u4e3a\u5f02\u6b65\u64cd\u4f5c\u63d0\u4f9b\u6267\u884c\u4e0a\u4e0b\u6587\u3002<\/p>\n

\u4e0b\u9762\u662f\u4e00\u4e2a\u5904\u7406\u5f02\u6b65\u8bf7\u6c42\u7684Servlet\u793a\u4f8b\uff1a<\/p>\n

\n \n \n 
    \n  \n  \n  
  1. @WebServlet<\/span>(name=<\/span>\"CalculatorServlet\"<\/span>, asyncSupported=<\/span>true<\/span>, urlPatterns={<\/span>\"\/calc\"<\/span>, <\/span>\"\/getVal\"<\/span>})  <\/span><\/span><\/li>\n  \n  \n  
  2.    <\/span>public<\/span> <\/span>class<\/span> CalculatorServlet <\/span>extends<\/span> HttpServlet{  <\/span><\/li>\n  \n  \n  
  3.       <\/span>public<\/span> <\/span>void<\/span> doGet(HttpServletRequest req, HttpServletResponse res) {  <\/span><\/li>\n  \n  \n  
  4.       ...  <\/span><\/li>\n  \n  \n  
  5.          AsyncContext aCtx = req.startAsync(req, res);  <\/span><\/li>\n  \n  \n  
  6.       }  <\/span><\/li>\n  \n  \n  
  7.       ...  <\/span><\/li>\n  \n  \n  
  8.    }  <\/span><\/li>\n  \n  \n  
  9.  <\/span><\/li>\n \n \n <\/ol><\/pre>\n
    #t#\u6ce8\u610fstartAsync()\u65b9\u6cd5\u8fd4\u56deAsyncContext\u5bf9\u8c61\u3002<\/p>\n
    Servlet 3.0\u4e5f\u5305\u62ec\u4e00\u4e2a\u65b0\u7684\u76d1\u542c\u5668\u7c7bAsyncListener\uff0c\u5f53\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u6216\u8d85\u65f6\u65f6\u5b83\u4f1a\u901a\u77e5\u4f60\uff0cAsyncContext\u7c7b\u5305\u62ec\u4e00\u4e2acomplete()\u65b9\u6cd5\uff0c\u5f53\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u65f6\u4f60\u53ef\u4ee5\u7528\u5b83\u63d0\u4ea4\u54cd\u5e94\uff0cAsyncListener\u7c7b\u6709\u4e00\u4e2adispatch()\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5c06\u5f02\u6b65\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u5bb9\u5668\uff0c\u4ee5\u4fbf\u5176\u5b83\u6846\u67b6\uff0c\u5982JSP\u53ef\u4ee5\u4ea7\u751f\u54cd\u5e94\u3002<\/p>\n
    \u3010\u8bd1\u7a3f\uff0c\u975e\u7ecf\u6388\u6743\u8bf7\u52ff\u8f6c\u8f7d\u3002\u5408\u4f5c\u7ad9\u70b9\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u539f\u6587\u8bd1\u8005\u548c\u51fa\u5904\u4e3a<\/font>\uff0c\u4e14\u4e0d\u5f97\u4fee\u6539\u539f\u6587\u5185\u5bb9\u3002\u3011<\/p>\n
    \u539f\u6587\uff1aIntroducing the Java EE 6 Platform <\/span>\u4f5c\u8005\uff1aEd Ort<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u3010\u7cbe\u9009\u8bd1\u6587\u3011\u5728\u4e4b\u524d\u7ffb\u8bd1\u7684\u7684Java EE 6\u7cfb\u5217\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86Servlet 3.0\uff1aJSR 315\u89c4\u8303\u662fSe […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-401773","post","type-post","status-publish","format-standard","hentry","category-website"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/401773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=401773"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/401773\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=401773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=401773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=401773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}