{"id":16518,"date":"2023-02-13T17:13:49","date_gmt":"2023-02-13T09:13:49","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=16518"},"modified":"2023-02-13T17:13:54","modified_gmt":"2023-02-13T09:13:54","slug":"jsp%e5%92%8cservlet%e7%9a%84%e5%8c%ba%e5%88%ab%e5%92%8c%e8%81%94%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/16518.html","title":{"rendered":"jsp\u548cservlet\u7684\u533a\u522b\u548c\u8054\u7cfb"},"content":{"rendered":"\n
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jsp\u548cservlet\u7684\u533a\u522b\u548c\u8054\u7cfb\u662f\uff1a1.jsp\u7ecf\u7f16\u8bd1\u540e\u5c31\u53d8\u6210\u4e86Servlet\uff1b2.jsp\u66f4\u64c5\u957f\u8868\u73b0\u4e8e\u9875\u9762\u663e\u793a,servlet\u66f4\u64c5\u957f\u4e8e\u903b\u8f91\u63a7\u5236\uff1b3.Servlet\u4e2d\u6ca1\u6709\u5185\u7f6e\u7c89\u5bf9\u8c61\uff0cJsp\u4e2d\u7684\u5185\u7f6e\u5bf9\u8c61\u90fd\u662f\u5fc5\u987b\u901a\u8fc7HttpServletRequest\u5bf9\u8c61\u3002<\/p>\n<\/blockquote>\n\n\n

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\"\"<\/figure><\/div>\n\n\n

\u4e00\u3001jsp\u548cservlet\u7684\u533a\u522b\u548c\u8054\u7cfb<\/strong><\/h2>\n\n\n\n

\u533a\u522b<\/strong><\/h3>\n\n\n\n

1.jsp\u7ecf\u7f16\u8bd1\u540e\u5c31\u53d8\u6210\u4e86Servlet.<\/p>\n\n\n\n

(JSP\u7684\u672c\u8d28\u5c31\u662fServlet\uff0cJVM\u53ea\u80fd\u8bc6\u522bjava\u7684\u7c7b\uff0c\u4e0d\u80fd\u8bc6\u522bJSP\u7684\u4ee3\u7801,Web\u5bb9\u5668\u5c06JSP\u7684\u4ee3\u7801\u7f16\u8bd1\u6210JVM\u80fd\u591f\u8bc6\u522b\u7684java\u7c7b)<\/p>\n\n\n\n

2.jsp\u66f4\u64c5\u957f\u8868\u73b0\u4e8e\u9875\u9762\u663e\u793a,servlet\u66f4\u64c5\u957f\u4e8e\u903b\u8f91\u63a7\u5236\u3002<\/p>\n\n\n\n

3.Servlet\u4e2d\u6ca1\u6709\u5185\u7f6e\u5bf9\u8c61\uff0cJsp\u4e2d\u7684\u5185\u7f6e\u5bf9\u8c61\u90fd\u662f\u5fc5\u987b\u901a\u8fc7HttpServletRequest\u5bf9\u8c61\uff0cHttpServletResponse\u5bf9\u8c61\u4ee5\u53caHttpServlet\u5bf9\u8c61\u5f97\u5230\u3002<\/p>\n\n\n\n

Jsp\u662fServlet\u7684\u4e00\u79cd\u7b80\u5316\uff0c\u4f7f\u7528Jsp\u53ea\u9700\u8981\u5b8c\u6210\u7a0b\u5e8f\u5458\u9700\u8981\u8f93\u51fa\u5230\u5ba2\u6237\u7aef\u7684\u5185\u5bb9\uff0cJsp\u4e2d\u7684Java\u811a\u672c\u5982\u4f55\u9576\u5d4c\u5230\u4e00\u4e2a\u7c7b\u4e2d\uff0c\u7531Jsp\u5bb9\u5668\u5b8c\u6210\u3002<\/p>\n\n\n\n

\u800cServlet\u5219\u662f\u4e2a\u5b8c\u6574\u7684Java\u7c7b\uff0c\u8fd9\u4e2a\u7c7b\u7684Service\u65b9\u6cd5\u7528\u4e8e\u751f\u6210\u5bf9\u5ba2\u6237\u7aef\u7684\u54cd\u5e94\u3002<\/p>\n\n\n\n

\u8054\u7cfb<\/strong><\/h3>\n\n\n\n

JSP\u662fServlet\u6280\u672f\u7684\u6269\u5c55\uff0c\u672c\u8d28\u4e0a\u5c31\u662fServlet\u7684\u7b80\u6613\u65b9\u5f0f\u3002JSP\u7f16\u8bd1\u540e\u662f\u201c\u7c7bservlet\u201d\u3002<\/p>\n\n\n\n

Servlet\u548cJSP\u6700\u4e3b\u8981\u7684\u4e0d\u540c\u70b9\u5728\u4e8e\uff1a<\/p>\n\n\n\n

Servlet\u7684\u5e94\u7528\u903b\u8f91\u662f\u5728Java\u6587\u4ef6\u4e2d\uff0c\u5e76\u4e14\u5b8c\u5168\u4ece\u8868\u793a\u5c42\u4e2d\u7684HTML\u91cc\u5206\u79bb\u5f00\u6765\u3002<\/p>\n\n\n\n

\u800cJSP\u7684\u60c5\u51b5\u662fJava\u548cHTML\u53ef\u4ee5\u7ec4\u5408\u6210\u4e00\u4e2a\u6269\u5c55\u540d\u4e3a.jsp\u7684\u6587\u4ef6\u3002<\/p>\n\n\n\n

JSP\u4fa7\u91cd\u4e8e\u89c6\u56fe\uff0cServlet\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u903b\u8f91<\/p>\n\n\n\n

Servlet\u66f4\u591a\u7684\u662f\u7c7b\u4f3c\u4e8e\u4e00\u4e2aController\uff0c\u7528\u6765\u505a\u63a7\u5236\u3002<\/p>\n\n\n\n

\u5ef6\u4f38\u9605\u8bfb\uff1a
<\/strong><\/p>\n\n\n\n

\u4e8c\u3001\u901a\u8fc7MVC\u53cc\u5251\u5408\u74a7jsp\u548cservlet<\/strong><\/h2>\n\n\n\n

\u65e2\u7136JSP\u548cServlet\u90fd\u6709\u81ea\u8eab\u7684\u9002\u7528\u73af\u5883\uff0c\u90a3\u4e48\u80fd\u5426\u626c\u957f\u907f\u77ed\uff0c\u8ba9\u5b83\u4eec\u53d1\u6325\u5404\u81ea\u7684\u4f18\u52bf\u5462\uff1f\u7b54\u6848\u662f\u80af\u5b9a\u7684\u2014\u2014MVC(Model-View-Controller)\u6a21\u5f0f\u975e\u5e38\u9002\u5408\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u3002<\/p>\n\n\n\n

MVC\u6a21\u5f0f\uff08Model-View-Controller\uff09\u662f\u8f6f\u4ef6\u5de5\u7a0b\u4e2d\u7684\u4e00\u79cd\u8f6f\u4ef6\u67b6\u6784\u6a21\u5f0f\uff0c\u628a\u8f6f\u4ef6\u7cfb\u7edf\u5206\u4e3a\u4e09\u4e2a\u57fa\u672c\u90e8\u5206\uff1a\u6a21\u578b\uff08Model\uff09\u3001\u89c6\u56fe\uff08View\uff09\u548c\u63a7\u5236\u5668\uff08Controller\uff09\uff1a<\/p>\n\n\n\n

Controller\u2014\u2014\u8d1f\u8d23\u8f6c\u53d1\u8bf7\u6c42\uff0c\u5bf9\u8bf7\u6c42\u8fdb\u884c\u5904\u7406<\/p>\n\n\n\n

View\u2014\u2014\u8d1f\u8d23\u754c\u9762\u663e\u793a<\/p>\n\n\n\n

Model\u2014\u2014\u4e1a\u52a1\u529f\u80fd\u7f16\u5199\uff08\u4f8b\u5982\u7b97\u6cd5\u5b9e\u73b0\uff09\u3001\u6570\u636e\u5e93\u8bbe\u8ba1\u4ee5\u53ca\u6570\u636e\u5b58\u53d6\u64cd\u4f5c\u5b9e\u73b0<\/p>\n\n\n\n

    \n
  1. Web\u6d4f\u89c8\u5668\u53d1\u9001HTTP\u8bf7\u6c42\u5230\u670d\u52a1\u7aef\uff0c\u88abController(Servlet)\u83b7\u53d6\u5e76\u8fdb\u884c\u5904\u7406\uff08\u4f8b\u5982\u53c2\u6570\u89e3\u6790\u3001\u8bf7\u6c42\u8f6c\u53d1\uff09<\/li>\n\n\n\n
  2. Controller(Servlet)\u8c03\u7528\u6838\u5fc3\u4e1a\u52a1\u903b\u8f91\u2014\u2014Model\u90e8\u5206\uff0c\u83b7\u5f97\u7ed3\u679c<\/li>\n\n\n\n
  3. Controller(Servlet)\u5c06\u903b\u8f91\u5904\u7406\u7ed3\u679c\u4ea4\u7ed9View\uff08JSP\uff09\uff0c\u52a8\u6001\u8f93\u51faHTML\u5185\u5bb9<\/li>\n\n\n\n
  4. \u52a8\u6001\u751f\u6210\u7684HTML\u5185\u5bb9\u8fd4\u56de\u5230\u6d4f\u89c8\u5668\u663e\u793a<\/li>\n<\/ol>\n\n\n\n

    MVC\u6a21\u5f0f\u5728Web\u5f00\u53d1\u4e2d\u7684\u597d\u5904\u662f\u975e\u5e38\u660e\u663e\uff0c\u5b83\u89c4\u907f\u4e86JSP\u4e0eServlet\u5404\u81ea\u7684\u77ed\u677f\uff0cServlet\u53ea\u8d1f\u8d23\u4e1a\u52a1\u903b\u8f91\u800c\u4e0d\u4f1a\u901a\u8fc7out.append()\u52a8\u6001\u751f\u6210HTML\u4ee3\u7801\uff1bJSP\u4e2d\u4e5f\u4e0d\u4f1a\u5145\u65a5\u7740\u5927\u91cf\u7684\u4e1a\u52a1\u4ee3\u7801\u3002\u8fd9\u5927\u5927\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n

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