{"id":200,"date":"2018-06-14T11:55:53","date_gmt":"2018-06-14T03:55:53","guid":{"rendered":"http:\/\/www.sniper97.cn\/?p=200"},"modified":"2018-06-14T11:55:53","modified_gmt":"2018-06-14T03:55:53","slug":"jsp%e8%af%ad%e6%b3%95%ef%bc%88%e6%9b%b4%e6%96%b0%e4%b8%ad%ef%bc%89","status":"publish","type":"post","link":"http:\/\/www.sniper97.cn\/index.php\/note\/jsp\/200\/","title":{"rendered":"JSP\u8bed\u6cd5"},"content":{"rendered":"

JSP\u9875\u9762\u57fa\u672c\u7ed3\u6784\uff1a
\n\u7ec4\u6210\u5143\u7d20
\n\u666e\u901a\u7684HTML\u6807\u8bb0\u7b26
\nJSP\u6807\u8bb0\uff08\u6307\u4ee4\u6807\u8bb0 \u52a8\u4f5c\u6807\u8bb0\uff09
\n\u53d8\u91cf\u548c\u65b9\u6cd5\u7684\u58f0\u660e
\njava\u7a0b\u5e8f\u7247
\njava\u8868\u8fbe\u5f0f
\n 
\n\u5e38\u7528\u7684HTML\u8bed\u53e5
\n<HTML> \u00a0\u00a0\u00a0\u00a0\u00a0<\/HTML> \u00a0\u00a0\u8868\u793ahtml\u6587\u4ef6\u7684\u5f00\u59cb\u548c\u7ed3\u675f
\n<BODY> \u00a0\u00a0\u00a0\u00a0\u00a0<\/BODY> \u00a0\u00a0\u8868\u793a\u6587\u4ef6\u7684\u4e3b\u4f53\u90e8\u5206\uff0c\u8be5\u6807\u8bb0\u53ef\u4ee5\u6709BGCOLOR\u5c5e\u6027\u8bbe\u7f6e\u80cc\u666f\u989c\u8272\u3002
\n<Hn> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/Hn> \u00a0\u00a0\u00a0\u00a0\u8868\u793a\u6807\u9898
\n<P> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8868\u793a\u5206\u6bb5
\n<BR> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/BR> \u00a0\u00a0\u00a0\u00a0\u8868\u793a\u6362\u884c
\n<FONT> \u00a0\u00a0\u00a0\u00a0\u00a0<\/FONT> \u00a0\u00a0\u8868\u793a\u8bbe\u7f6e\u5b57\u4f53\uff0c\u8be5\u6807\u8bb0\u53ef\u4ee5\u6709SIZE\u548cCOLOR\u5c5e\u6027
\n<A href=\u201c\u8fde\u63a5\u7684\u5730\u5740\u201d> \u8fde\u63a5\u63d0\u793a\u4fe1\u606f \u00a0\u00a0\u00a0\u00a0<\/A>
\n\u6211\u4eec\u5148\u4e3e\u4e2a\u4f8b\u5b50
\ne<\/b><\/strong>xample2_1.jsp<\/b><\/strong><\/p>\n

<%@ page contentType=\"text\/html;charset=GB2312\" %>  <!-- jsp\u6307\u4ee4\u6807\u8bb0 -->\n<%@ page import=\"java.util.Date\"  %>                <!-- jsp\u6307\u4ee4\u6807\u8bb0 -->\n<%!   Date date;                                   \/\/ \u6570\u636e\u58f0\u660e\n      int start,end,sum;\n      public int continueSum(int start,int end)    \/\/ \u65b9\u6cd5\u58f0\u660e\n      {  for(int i=start;i<=end;i++)\n            sum=sum+i;\n         return sum;\n      }\n  %>\n<HTML><BODY bgcolor=cyan>                         <!\u2014html\u6807\u8bb0 -->\n<FONT size=4><P>\u7a0b\u5e8f\u7247\u521b\u5efaDate\u5bf9\u8c61\uff1a\n   <% date=new Date();                            \/\/java\u7a0b\u5e8f\u7247\n      out.println(\"<BR>\"+date);\n      start=1;\n      end=100;\n      sum=continueSum(start,end);\n   %>\n<BR>\u4ece\n   <%= start %>                                   <!-- Java\u8868\u8fbe\u5f0f -->\n   \u81f3\n   <%= end %>\n   \u7684\u8fde\u7eed\u548c\u662f\n   <%= sum %>\n<\/FONT><\/BODY><\/HTML><\/pre>\n
 
\n\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\u662f\uff1a
\n 
\n\"\"
\n 
\n\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u7b2c3\u884c\u548c\u7b2c13\u884c\uff0c\u662f\u4e00\u5bf9\u6807\u8bb0\u7b26\u53f7<%! \u548c %>\uff0c\u5728\u8fd9\u5bf9\u6807\u8bb0\u7b26\u53f7\u4e2d\u95f4\u5b58\u653e \u4e86java\u7a0b\u5e8f\uff0c\u4f46\u662f\u6211\u4eec\u540c\u6837\u53d1\u73b0\uff0c 13\u884c\u548c18\u884c\uff0c\u8fd8\u6709\u4e00\u5bf9\u6807\u8bb0\u7b26\u53f7<% \u548c %> \u4e2d\u95f4\u540c\u6837\u6709java\u7a0b\u5e8f\uff0c\u4ed6\u4eec\u7684\u533a\u522b\u662f\u4ec0\u4e48\u5462\uff1f
\n\u56de\u60f3\u4e00\u4e0bjava\u4e2d\u7684\u9759\u6001\uff08static\uff09\u53d8\u91cf\u548c\u6210\u5458\u53d8\u91cf\u7684\u533a\u522b\uff0c\u4e00\u4e2a\u7c7b\u7684\u6240\u6709\u5bf9\u8c61\u8bbf\u95ee\u7684\u90fd\u662f\u540c\u4e00\u4e2a\u9759\u6001\u53d8\u91cf\uff0c\u5373\u5176\u4e2d\u4e00\u4e2a\u53d8\u91cf\u5bf9\u9759\u6001\u53d8\u91cf\u7684\u6539\u53d8\uff0c\u90fd\u4f1a\u5bfc\u81f4\u6240\u6709\u5bf9\u8c61\u8bbf\u95ee\u8be5\u9759\u6001\u53d8\u91cf\u503c\u7684\u53d8\u5316\uff1b\u4f46\u662f\u6210\u5458\u53d8\u91cf\u5219\u4e0d\u4e00\u6837\uff0c\u5f53\u5176\u4e2d\u4e00\u4e2a\u5bf9\u8c61\u5bf9\u5176\u6210\u5458\u53d8\u91cf\u8fdb\u884c\u6539\u53d8\u65f6\uff0c\u5176\u4ed6\u5bf9\u8c61\u8bbf\u95ee\u8be5\u6210\u5458\u53d8\u91cf\u7684\u503c\u4e0d\u53d1\u751f\u53d8\u5316\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u6240\u6709\u5bf9\u8c61\u5171\u540c\u8bbf\u95ee\u4e00\u4e2a\u9759\u6001\u53d8\u91cf\uff0c\u4f46\u662f\u4ed6\u4eec\u5404\u81ea\u62e5\u6709\u81ea\u5df1\u7684\u6210\u5458\u53d8\u91cf\u3002
\n\u8fd9\u4e2a\u5c31\u7c7b\u4f3c\u4e8e\u9759\u6001\u53d8\u91cf\u548c\u5b9e\u4f8b\u53d8\u91cf\u7684\u533a\u522b\uff0c<%! \u548c %> \u8fd9\u4e00\u5bf9\u4e2d\u58f0\u660e\u7684\u7c7b\u4f3c\u4e8estatic\u53d8\u91cf\uff0c\u8bbf\u95ee\u8fd9\u4e2aJSP\u9875\u9762\u7684\u6240\u6709\u7528\u6237\u90fd\u8bbf\u95ee\u7684\u540c\u4e00\u4e2a\u53d8\u91cf\u6216\u65b9\u6cd5\uff0c\u800c<% \u548c %> \u5c31\u50cf\u666e\u901a\u7684\u53d8\u91cf\uff0c\u6bcf\u4e00\u4e2a\u7528\u6237\uff0cTomcat\u90fd\u4f1a\u4e3a\u5176\u5206\u914d\u4e00\u4e2a\u5168\u65b0\u7684\u7ebf\u7a0b\u548c\u6267\u884c\u8fd9\u90e8\u5206\u4ee3\u7801\u3002\u6211\u4eec\u628a\u5728<%! \u548c %>\u4e2d\u5b9a\u4e49\u7684\u53d8\u91cf\u79f0\u4e3a\u6210\u5458\u53d8\u91cf\uff0c\u628a\u5728<% \u548c %>\u4e2d\u7684java\u4ee3\u7801\u6210\u4e3ajava\u7a0b\u5e8f\u7247\uff0c\u58f0\u660e\u7684\u53d8\u91cf\u79f0\u4e3a\u5c40\u90e8\u53d8\u91cf\u3002
\n 
\n\"\"
\n 
\n 
\n\u4e3a\u4e86\u66f4\u597d\u7684\u8bf4\u660e\u8fd9\u90e8\u5206\uff0c\u6211\u4eec\u7ee7\u7eed\u5237\u65b0\u8fd9\u4e2a\u9875\u9762\uff0c\u6216\u8005\u518d\u5f00\u542f\u4e00\u9875\uff0c\u6211\u4eec\u4f1a\u53d1\u73b0\uff0c\u6570\u5b57\u4f1a\u4e00\u76f4\u589e\u5927\u3002
\n
\"\"
sum\u53d8\u91cf\u5728<%! \u548c %> \u4e2d\u5b9a\u4e49\u5bfc\u81f4\u7684\u7a0b\u5e8fbug<\/p><\/div>
\n 
\n\u8fd9\u5c31\u8bf4\u660e\u6240\u6709\u7528\u6237\u5171\u4eab\u7684\u662f\u4e00\u4e2asum\u53d8\u91cf\uff0c\u7b2c\u4e00\u4e2a\u7528\u6237\u8ba1\u7b97\u4e4b\u540esum\u53d8\u62105050\u5e76\u8fd4\u56de\uff0c\u7b2c\u4e8c\u4e2a\u7528\u6237\u57285050\u7684\u57fa\u7840\u4e0a\u7ee7\u7eed\u8ba1\u7b97\uff0c\u5373\u53d8\u621010100\uff0c\u5982\u679csum\u662f<% \u548c %> \u4e2d\u5b9a\u4e49\u7684\uff0c\u5219\u4e0d\u4f1a\u51fa\u73b0\u8fd9\u79cd\u95ee\u9898\u3002
\n 
\nexample2_2.jsp\u5c31\u662f\u5bf9<%!\u00a0 \u548c %> \u548c<% \u548c %> \u7684\u5e94\u7528\u3002
\nexample2_2.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY BGCOLOR=cyan><FONT size=3>\n  <%! int i=0;\n  %>\n  <% i++;\n  %>\n<P>\u60a8\u662f\u7b2c\n   <%= i %>\n  \u4e2a\u8bbf\u95ee\u672c\u7ad9\u7684\u5ba2\u6237\u3002\n<\/BODY><\/HTML><\/pre>\n
 
\n\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\uff1a
\n\"\"
\n 
\n\u4f46\u662f\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u4ea7\u751f\u4e00\u4e2a\u6f5c\u5728\u7684\u98ce\u9669\uff0c\u5c31\u662f\u5f53\u4e24\u4e2a\u6216\u8005\u591a\u4e2a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\u8fd9\u4e2a\u7f51\u9875\uff0c\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u5bf9\u6210\u5458\u53d8\u91cf\u8fdb\u884c\u8bbf\u95ee\u6216\u8005\u66f4\u6539\uff0c\u5f80\u5f80\u4f1a\u53d1\u751f\u610f\u6599\u4e4b\u5916\u7684\u4e8b\u60c5\uff0c\u6bd4\u5982\u591a\u4e2a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\u4f8b2_2\u4e2d\u7684 i\uff0c\u90a3\u4e48\u591a\u4e2a\u7528\u6237\u5c06\u6536\u5230\u540c\u6837\u7684 i\uff0c\u600e\u4e48\u9632\u6b62\u8fd9\u4e2a\u95ee\u9898\u7684\u53d1\u751f\u5462\uff1f\u6211\u4eec\u4f7f\u7528\u540c\u6b65\u4ee3\u7801\u5757\uff08synchronized\uff09\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u540c\u6b65\u4ee3\u7801\u5757\uff0c\u987e\u540d\u601d\u4e49\uff0c\u8fd9\u4e2a\u4ee3\u7801\u5757\u662f\u540c\u6b65\u7684\uff0c\u4e5f\u5c31\u662f\u8fd9\u90e8\u5206\u4ee3\u7801\u5177\u6709\u539f\u5b50\u6027\uff08\u4e0d\u53ef\u518d\u5206\uff09\uff0c\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u5728\u540c\u6b65\u4ee3\u7801\u5757\u4e2d\uff0c\u5176\u4ed6\u7ebf\u7a0b\u4e0d\u5141\u8bb8\u8fdb\u5165\u540c\u6b65\u4ee3\u7801\u5757\uff0c\u53ea\u6709\u5f53\u524d\u7ebf\u7a0b\u79bb\u5f00\uff0c\u5176\u4ed6\u7ebf\u7a0b\u624d\u53ef\u4ee5\u8fdb\u5165\u3002
\nsynchronized\u5173\u952e\u5b57\u53ef\u4ee5\u5728\u65b9\u6cd5\u524d\u8fdb\u884c\u58f0\u660e\uff08\u5982\u4f8bexample2_4\uff09\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528{}\u6765\u8fdb\u884c\u58f0\u660e\u3002<\/p>\n
synchronized{\n    count++;\n}<\/pre>\n
 
\n 
\nexample2_4.jsp<\/p>\n
<%@ page contentType=\"text\/html;Charset=GB2312\" %>\n<HTML><BODY>\n    <%! int count=0;                \/\/\u88ab\u5ba2\u6237\u5171\u4eab\u7684count\n        synchronized void setCount()  \/\/synchronized\u4fee\u9970\u7684\u65b9\u6cd5\n        {   count++;\n        }\n    %>\n    <%  setCount();\n         out.println(\"\u60a8\u662f\u7b2c\"+count+\"\u4e2a\u8bbf\u95ee\u672c\u7ad9\u7684\u5ba2\u6237\");\n    %>\n<\/BODY><\/HTML><\/pre>\n
 
\n\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\uff1a
\n 
\n\"\"
\n\u8fd9\u4e2a\u65b9\u6cd5\u5c31\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u5373\u5728\u591a\u7ebf\u7a0b\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd0\u884c\u8fd9\u4e2a\u7a0b\u5e8f\u4e0d\u4f1a\u56e0\u4e3a\u591a\u7ebf\u7a0b\u4ea7\u751f\u4e00\u4e9b\u672a\u77e5bug\u3002
\n <\/p>\n
Java\u8868\u8fbe\u5f0f\uff1a<\/h2>\n
 
\nexample2_6.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY  bgcolor=cyan><FONT size=3>\n<%  double a=12.89;\n    int x=12,y=10;\n%>\n\u8ba1\u7b97\u8868\u8fbe\u5f0fa+x*y-100\/x+x%5\u7684\u503c:\n  <%= a+x*y-100\/x+x%5 %>\n<BR>\u8ba1\u7b97\u8868\u8fbe\u5f0fx>y&&a>0\u7684\u503c:\n  <%=x>y&&a>0%>\n<BR>\u8ba1\u7b97\u8868\u8fbe\u5f0fsin(x)+cos(y):\n  <%=Math.sin(x)+Math.cos(y)%>\n<BR> \u6c428\u7684\u5e73\u65b9\u6839:\n  <%=Math.sqrt(8)%>\n<\/FONT><\/BODY><\/HTML><\/pre>\n
 
\n\u6211\u4eec\u53d1\u73b0\uff0cJSP\u4ee3\u7801\u4e2d\u6211\u4eec\u4f7f\u7528<%= \u548c %> \u4e2d\u63d2\u5165\u8868\u8fbe\u5f0f\uff08<%= \u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u7b26\u53f7\uff0c\u4ed6\u4eec\u4e2d\u95f4\u4e0d\u53ef\u4ee5\u6709\u7a7a\u683c\uff09
\n 
\n\u6211\u4eec\u770b\u8fd9\u4e2a\u6817\u5b50\u7684\u7ed3\u679c\u5e76\u601d\u8003\uff0c\u5c31\u53ef\u4ee5\u7406\u89e3<%= \u548c %>\u00a0 \u7684\u7528\u9014\u4e86\u3002
\n 
\n\"\"
\n <\/p>\n
JSP\u4e2d\u7684\u6ce8\u91ca\uff1a<\/h2>\n
html\u6ce8\u91ca <!- -\u6ce8\u91ca\u5185\u5bb9- -> \u53d1\u9001\u5230\u5ba2\u6237\u7aef\uff0c\u7531\u6e38\u89c8\u5668\u6267\u884c\u3002
\njsp\u6ce8\u91ca <%- -\u6ce8\u91ca\u5185\u5bb9- -%> \u5f15\u64ce\u5ffd\u7565\uff0c\u4e0d\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u3002
\n\uff08\u4e24\u4e2a\u201c-\u201d\u4e2d\u95f4\u6ca1\u6709\u7a7a\u683c\uff0c\u4f46\u662f\u4e0d\u52a0\u7a7a\u683c\u5728\u8fd9\u91cc\u4f1a\u81ea\u52a8\u89e3\u6790\u6210\u4e00\u4e2a\u6760\uff0c\u5b9e\u9645\u4e0a\u662f\u50cf\u4e0b\u9762\u4ee3\u7801\u4e2d\u4e00\u6837\uff0c\u6ca1\u6709\u7a7a\u683c\uff09
\n 
\nexample2_7.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY>\n  <!-- \u4ee5\u4e0b\u5b57\u4f53\u7684\u989c\u8272\u4e3a\u84dd\u8272 -->\n  <FONT size=3 color=blue>\u62bd\u53d6\u5b57\u7b26\u4e32\"C:\\myfile\\jspfile\\example.jsp\"\u4e2d\u7684\"example.jsp\"\n<\/FONT>\n   <%-- \u4e0b\u9762\u662f\u6210\u5458\u53d8\u91cf\u7684\u58f0\u660e --%>\n  <%!  String s=\"C:\\\\myfile\\\\jspfile\\\\example.jsp\";\n  %>\n  <%-- \u4e0b\u9762\u662fJava\u7a0b\u5e8f\u7247 --%>\n  <%  int index=s.lastIndexOf(\"\\\\\");\n      String str=s.substring(index+1);\n  %>\n  <BR><%-- \u4e0b\u9762\u662fJava\u8868\u8fbe\u5f0f --%>\n  <%= str %>\n<\/BODY><\/HTML><\/pre>\n
 
\n\u6211\u4eec\u770b\u4ee3\u7801\u4e2d\uff0c\u6709\u4e24\u79cd\u6ce8\u91ca\uff0c\u5206\u522b\u662f\u6a59\u8272\u7684HTML\u6ce8\u91ca\u90e8\u5206\u548c\u7ea2\u8272\u90e8\u5206\u7684JSP\u6ce8\u91ca\u3002
\n\"\"
\n\u5728\u8fd0\u884c\u65f6\uff0cJSP\u5f15\u64ce\u5728\u5904\u7406JSP\u9875\u9762\u65f6\uff0c\u4f1a\u5ffd\u7565JSP\u6ce8\u91ca\uff0c\u4f46\u662f\u4f1a\u4fdd\u7559HTML\u6ce8\u91ca\uff0c\u4e00\u5e76\u53d1\u9001\u5230\u5ba2\u6237\u7aef\uff0c\u7531\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\u6765\u89e3\u6790\u3002
\n\u4e3a\u4e86\u9a8c\u8bc1\u8fd9\u79cd\u8bf4\u6cd5\uff0c\u6211\u4eec\u6765\u8bbf\u95ee\u8fd9\u4e2a\u9875\u9762\u5e76\u67e5\u770b\u9875\u9762\u6e90\u7801\u3002
\n 
\n\"\"
\n 
\n\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\uff0c\u4ee3\u7801\u4e2d\u7684java\u4ee3\u7801\u5df2\u7ecf\u88ab\u6267\u884c\uff0c\u5e76\u53ea\u53d1\u9001\u7ed3\u679c\u201cexample.jsp\u201d\u5230\u5ba2\u6237\u7aef\uff0cJSP\u6ce8\u91ca\u90e8\u5206\u4e5f\u4e0d\u50cf\u5ba2\u6237\u7aef\u53d1\u9001\uff0c\u53ea\u53d1\u9001\u4e86HTML\u6ce8\u91ca\u90e8\u5206\u3002
\n <\/p>\n
JSP\u6307\u4ee4\u6807\u8bb0\uff1a<\/h2>\n
page\u6307\u4ee4\u6807\u8bb0\uff1a<\/h3>\n
page\u6307\u4ee4\u7528\u6765\u5b9a\u4e49\u6574\u4e2aJSP\u9875\u9762\u7684\u4e00\u4e9b\u5c5e\u6027\u548c\u8fd9\u4e9b\u5c5e\u6027\u7684\u503c\uff0c\u5c5e\u6027\u503c\u7528\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\u62ec\u8d77\u6765\u3002\u53ef\u4ee5\u7528\u4e00\u4e2apage\u6307\u4ee4\u6307\u5b9a\u591a\u4e2a\u5c5e\u6027\u7684\u503c\uff0c\u4f8b\u5982\uff1a<\/p>\n
<%@ page \u5c5e\u60271 = \"\u5c5e\u60271\u7684\u503c\"  \u5c5e\u60272 = \"\u5c5e\u60272\u7684\u503c\" \u00b7\u00b7\u00b7\u00b7\u00b7%><\/pre>\n
\u6216\u8005<\/p>\n
<%@ page \u5c5e\u60271 = \"\u5c5e\u60271\u7684\u503c\"%>\n<%@ page \u5c5e\u60272 = \"\u5c5e\u60272\u7684\u503c\"%>\n\u00b7\u00b7\u00b7\n\u00b7\u00b7\u00b7\n\u00b7\u00b7\u00b7<\/pre>\n
page\u6307\u4ee4\u7684\u4f5c\u7528\u5bf9\u6574\u4e2aJSP\u9875\u9762\u6709\u6548\uff0c\u4e0e\u5176\u4e66\u5199\u7684\u4f4d\u7f6e\u65e0\u5173\u3002\u4e60\u60ef\u4e0a\u628apage\u6307\u4ee4\u5199\u5728JSP\u9875\u9762\u7684\u6700\u524d\u9762\u3002
\npage\u6307\u4ee4\u6807\u8bb0\u53ef\u4ee5\u6307\u5b9a\u5982\u4e0b\u5c5e\u6027\u503c\uff1a
\ncontentType\u3001import\u3001language\u3001session\u3001buffer\u3001auotFlush\u3001isThreadSafe\u3002
\n1.contentType \u5c5e\u6027
\ncontentType\u5c5e\u6027\u503c\u786e\u5b9aJSP\u9875\u9762\u54cd\u5e94\u7684MIME\u7c7b\u578b\u548cJSP\u9875\u9762\u5b57\u7b26\u7684\u7f16\u7801\u3002<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %><\/pre>\n
\u8fd9\u91ccMIME\u7c7b\u578b\u662ftext\/html\uff0cJSP\u9875\u9762\u5b57\u7b26\u7f16\u7801\u662fGB2312\u3002
\nMIME\u7684\u4f5c\u7528\u662f\u544a\u8bc9\u7528\u6237\u6d4f\u89c8\u5668\u4ee5\u4ec0\u4e48\u5f62\u5f0f\u6765\u89e3\u6790\u670d\u52a1\u5668\u53d1\u8fc7\u6765\u7684\u4fe1\u606f\uff0c\u7f16\u7801\u5219\u6307\u5b9a\u4fe1\u606f\u7684\u7f16\u7801\u65b9\u5f0f\u3002
\n\u8fd9\u91cc\u6bd4\u5982\u6211\u4eec\u5c06example2_7.jsp\u7684contentType\u5c5e\u6027\u7684MIME\u503c\u6539\u6210application\/msword\uff0c\u6211\u4eec\u518d\u6b21\u8bbf\u95ee\u8fd9\u4e2a\u9875\u9762\u3002
\n\"\"
\n\u6d4f\u89c8\u5668\u4ee5word\u5f62\u5f0f\u89e3\u6790\uff0c\u6211\u4eec\u6253\u5f00\u4e4b\u540e\u53d1\u73b0\u4f9d\u7136\u662f\u7f51\u9875\u663e\u793a\u7684\u90a3\u4e9b\u4e1c\u897f\uff0c\u53ea\u4e0d\u8fc7\u662f\u4ee5word\u5f62\u5f0f\u89e3\u6790\u3002
\npage\u5c5e\u6027\u8fd8\u6709\uff1atext\/html, text\/plain, image\/gif, image\/x-xbitmap, image\/jpeg, application\/msword \u7b49\u3002
\n2.language \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u5b9a\u4e49JSP\u9875\u9762\u4f7f\u7528\u7684\u8bed\u8a00\uff0c\u8be5\u5c5e\u6027\u503c\u76ee\u524d\u53ea\u80fd\u53d6java\u3002
\n3.import \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u7684\u4f5c\u7528\u662f\u4e3aJSP\u9875\u9762\u56e0\u4e3aJava\u8fd0\u884c\u73af\u5883\u63d0\u4f9b\u5305\u4e2d\u7684\u7c7b\uff1b\u53ef\u4ee5\u4e3a\u8be5\u5c5e\u6027\u5236\u5b9a\u591a\u4e2a\u503c\uff0c\u8be5\u5c5e\u6027\u7684\u503c\u53ef\u4ee5\u4f7f\u67d0\u5305\u4e2d\u7684\u6240\u6709\u7c7b\u6216\u8005\u4e00\u4e2a\u5177\u4f53\u7684\u7c7b\u3002\u6709\u4e24\u79cd\u58f0\u660e\u65b9\u5f0f\u3002<\/p>\n
<%@ page import = \"java.io.*\",\"java.util.Date\" %>\n<\/pre>\n
\u6216\u8005<\/p>\n
<%@ page import = \"java.io.*\" %>\n<%@ page import = \"java.util.Date\" %>\n<\/pre>\n
 
\n4.session \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u7528\u4e8e\u8bbe\u7f6e\u662f\u5426\u9700\u8981\u4f7f\u7528\u5185\u7f6e\u7684session\u5bf9\u8c61\u3002\u9ed8\u8ba4\u662ftrue\u3002
\n5.buffer \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u7528\u6765\u6307\u5b9aout\u8bbe\u7f6e\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u6216\u8005\u4e0d\u4f7f\u7528\u7f13\u51b2\u533a\u3002\u4f8b\u5982<\/p>\n
<%@ page buffer = \"24KB\" %>\n<\/pre>\n
buffer\u7684\u9ed8\u8ba4\u503c\u662f8KB\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u201cnone\u201d\uff0c\u5373\u4e0d\u8bbe\u7f6e\u7f13\u51b2\u533a\u3002
\n6.autoFlush \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u6307\u5b9aout\u7f13\u51b2\u533a\u88ab\u586b\u6ee1\u65f6\uff0c\u662f\u5426\u81ea\u52a8\u5237\u65b0\uff0c\u9ed8\u8ba4\u503ctrue\u3002
\n\u5f53autoFlush\u4e3aflase\u65f6\uff0c\u5f53\u7f13\u51b2\u533a\u88ab\u586b\u6ee1\uff0c\u4f1a\u4ea7\u751f\u5185\u5b58\u6ea2\u51fa\u3002
\n\u5f53buffer\u8bbe\u7f6e\u4e3a\u201cnone\u201d\u65f6\uff0c\u4e0d\u5141\u8bb8\u8bbe\u7f6eautoFlush\u4e3aflase\u3002
\n7.isThreadSafe \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u7528\u6765\u8bbe\u7f6eJSP\u9875\u9762\u662f\u5426\u53ef\u4ee5\u591a\u7ebf\u7a0b\u8bbf\u95ee\uff0c\u9ed8\u8ba4\u503c\u4e3atrue\u3002
\n\u5f53isThreadSafe\u4e3atrue\u65f6\uff0c\u5141\u8bb8\u591a\u4e2a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\u8be5\u9875\u9762\uff0c\u5f53isThreadSafe\u4e3aflase\u65f6\uff0c\u540c\u4e00\u65f6\u523b\u53ea\u5141\u8bb8\u4e00\u4e2a\u7528\u6237\u8bbf\u95eeJSP\u9875\u9762\uff0c\u5176\u4ed6\u7528\u6237\u5fc5\u987b\u6392\u961f\u7b49\u5f85\u3002
\n8.info \u5c5e\u6027
\n\u8be5\u5c5e\u6027\u7684\u5c5e\u6027\u503c\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5176\u76ee\u7684\u662f\u4e3a\u4e86JSP\u9875\u9762\u51c6\u5907\u4e00\u4e2a\u5e38\u7528\u4f46\u53ef\u80fd\u8981\u7ecf\u5e38\u4fee\u6539\u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c<\/p>\n
<%@ page info = \"we are students\" %><\/pre>\n
\u53ef\u4ee5\u5728JSP\u9875\u9762\u4e2d\u4f7f\u7528\u65b9\u6cd5\uff1a
\ngetServletInfo\uff08\uff09;
\n\u6765\u83b7\u53d6info\u5c5e\u6027\u7684\u5c5e\u6027\u503c\u3002
\nexample2_9.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<%@ page info=\"\u6e05\u534e\u5927\u5b66\" %>\n<%  String s=getServletInfo();\n%>\n<head>  <%= s %><\/head>\n<HTML><BODY  bgcolor=white><FONT Size=4>\n<BR><%=s %>\u51fa\u7248\u793e\u662f\u4e2d\u56fd\u8457\u540d\u51fa\u7248\u793e\n<BR><%=s %>\u662f\u5168\u56fd\u8457\u540d\u7684\u9ad8\u7b49\u5b66\u5e9c\n<\/BODY><HTML><\/pre>\n
 
\n\u8fd0\u884c\u4e4b\u540e\u662f\u8fd9\u6837\u7684
\n\"\"
\n\u6211\u4eec\u770b\u5230info\u5c5e\u6027\u540e\u9762\u662f\u201c\u6e05\u534e\u5927\u5b66\u201d,\u6211\u4eec\u4f7f\u7528String s=getServletInfo();\u5c31\u53ef\u4ee5\u83b7\u53d6\u5230Info\u5c5e\u6027\u91cc\u9762\u7684\u5b57\u7b26\u4e32\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4e00\u822c\u7528\u6765\u51c6\u5907\u4e00\u4e2a\u5e38\u7528\u4f46\u53ef\u80fd\u8981\u7ecf\u5e38\u4fee\u6539\u7684\u5b57\u7b26\u4e32\u3002
\n <\/p>\n
include\u6307\u4ee4\u6807\u8bb0<\/h3>\n
\u5982\u679c\u9700\u8981\u5728JSP\u9875\u9762\u5185\u67d0\u5904\u6574\u4f53\u5d4c\u5165\u4e00\u4e2a\u6587\u4ef6\uff0c\u5c31\u53ef\u4ee5\u8003\u8651\u4f7f\u7528include\u6307\u4ee4\u6807\u8bb0\uff0c\u5176\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
<%@ include file=\"\u6587\u4ef6\u7684URL\"%><\/pre>\n
 
\n\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u5728\u8be5\u6307\u4ee4\u51fa\u73b0\u7684\u5730\u65b9\uff0c\u9759\u6001\u7684\u63d2\u5165\u4e00\u4e2a\u6587\u4ef6\uff0c\u88ab\u63d2\u5165\u7684\u6587\u4ef6\u5fc5\u987b\u662f\u53ef\u4ee5\u8bbf\u95ee\u6216\u8005\u53ef\u4ee5\u4f7f\u7528\u7684\uff0c\u5e76\u4e14\u6587\u4ef6\u63d2\u5165\u540e\u4e0d\u4f1a\u5bfc\u81f4JSP\u8bed\u6cd5\u9519\u8bef\uff08\u6bd4\u5982\u65b0\u63d2\u5165\u7684\u6587\u4ef6\u7684contentType\u5c5e\u6027\u4e3aapplication\/msword\uff0c\u800c\u539f\u9875\u9762\u7684\u5c5e\u6027\u4e3atext\/html\uff0c\u8fd9\u6837\u5c31\u4f1a\u4ea7\u751f\u4e24\u4e2acontentType\u5c5e\u6027\uff0c\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\u3002\uff09\u6709\u70b9\u7c7b\u4f3c\u4e8e\u65b9\u6cd5\u7684\u8c03\u7528\uff0c\u8be5\u6807\u8bb0\u76ee\u7684\u662f\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\uff0c\u6bd4\u5982\u591a\u4e2a\u9875\u9762\u90fd\u9700\u8981\u540c\u4e00\u4e2a\u529f\u80fd\uff0c\u90a3\u4e48\u5728\u591a\u4e2a\u9875\u9762\u4e2d\u53ea\u8981include\u529f\u80fd\u6587\u4ef6\u5373\u53ef\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u4e2a\u6817\u5b50\u3002
\n\u5047\u5982\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u7f51\u7ad9\u5bfc\u822a\uff0c\u70b9\u51fb\u53ef\u4ee5\u8df3\u8f6c\u5230\u76f8\u5e94\u7684\u9875\u9762\uff0c\u5bfc\u822a\u90e8\u5206\u4ee3\u7801\u5982\u4e0b\uff1a
\n\u5728\u6839\u76ee\u5f55\u4e0b\u65b0\u5efa\u6587\u4ef6\u5939myfile\uff0c\u5e76\u65b0\u5efaok.jsp\u3002
\nok.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<center>\n<A href = \"example2_10_a.jsp\">\u5317\u4eac\u5927\u5b66<\/A>\n<A href = \"example2_10_b.jsp\">\u6e05\u534e\u5927\u5b66<\/A>\n<p><\/pre>\n
\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e2a\u6587\u4ef6\u53ef\u4ee5\u662f\u4efb\u4f55\u53ef\u4ee5\u8bbf\u95ee\u7684\u7c7b\u578b\uff0c\u53ea\u8981\u662fjsp\u8bed\u6cd5\u5373\u53ef\uff0cok.txt \u751a\u81f3ok.xml\u90fd\u884c\u3002
\n<A href = “example2_10_b.jsp”>\u6e05\u534e\u5927\u5b66<\/A> \u8fd9\u53e5\u8bdd\u6211\u4eec\u4e4b\u524d\u4e5f\u63d0\u8fc7\uff0c\u662f\u4e13\u95e8\u7528\u6765\u8df3\u8f6c\u7684\u8bed\u53e5\uff08<A href=\u201c\u8fde\u63a5\u7684\u5730\u5740\u201d> \u8fde\u63a5\u63d0\u793a\u4fe1\u606f <\/A>\uff09
\n 
\n\u6211\u4eec\u518d\u5199include\u8fd9\u4e2a\u9875\u9762\u7684jsp\u9875\u9762\u3002
\nexample2_10_a.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<%@ include file=\"myfile\/ok.jsp\" %>\n<HTMLl><BODY bgcolor=white>\n<P>\u6211\u662f\u5317\u4eac\u5927\u5b66\u7684jsp\u9875\u9762\n<\/BODY><\/HTML><\/pre>\n
 
\nexample2_10_b.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<%@ include file=\"myfile\/ok.jsp\" %>\n<HTML><BODY bgcolor=yellow>\n<P>\u6211\u662f\u6e05\u534e\u5927\u5b66\u7684jsp\u9875\u9762\n<\/BODY><\/HTML><\/pre>\n
 
\n\u73b0\u5728\u6211\u4eec\u8bbf\u95ee\u8fd9\u4e24\u4e2a\u9875\u9762\u4efb\u610f\u4e00\u4e2a\u3002
\n\"\"
\n\u6211\u4eec\u53d1\u73b0\u4e0a\u9762\u6709\u4e24\u4e2a\u94fe\u63a5\u201c\u5317\u4eac\u5927\u5b66\u201d\uff0c\u548c\u201c\u6e05\u534e\u5927\u5b66\u201d,\u548c\u6211\u4eec\u5728\u540e\u9762\u52a0\u7684\u6587\u5b57\u201c\u5b9e\u9645\u4e0a\u8fd9\u91cc\u53ef\u4ee5\u76f4\u63a5\u6253\u4e0a\u4f60\u9700\u8981\u7684\u6587\u5b57\u201d\uff0c\u6211\u4eec\u70b9\u51fb\u6e05\u534e\u5927\u5b66\uff0c\u8df3\u8f6c\u5230\u5982\u4e0b\u9875\u9762\uff0c\u6211\u4eec\u53d1\u73b0\u5bfc\u822a\u680f\u4f9d\u7136\u5728\u3002
\n 
\n\"\"
\n 
\n\u8fd9\u79cd\u63d2\u5165\u65b9\u5f0f\u6210\u4e3a\u9759\u6001\u63d2\u5165\uff0c\u5373JSP\u5f15\u64ce\u5728\u7f16\u8bd1\u539f\u9875\u9762\u65f6\uff0c\u4f1a\u5c06\u4e24\u4e2a\u9875\u9762\u7ec4\u5408\u6210\u4e00\u4e2a\u65b0\u9875\u9762\u6700\u7ec8\u8f6c\u79fb\u6210\u5b57\u8282\u7801\u6587\u4ef6\u3002\u4e5f\u5c31\u662f\u5b9e\u9645\u4e0aexample2_10_a.jsp\u8fd9\u4e2a\u9875\u9762\u7684\u5b57\u8282\u7801\u6587\u4ef6\u5df2\u7ecf\u5305\u62ec\u4e86\u5bfc\u822a\u90e8\u5206\uff0cJSP\u5f15\u64ce\u5728\u7f16\u8bd1example2_10_a.jsp\u9875\u9762\u65f6\uff0c\u5c31\u5c06ok.jsp\u4e0eexample2_10_a.jsp\u5408\u4e8c\u4e3a\u4e00\u5e76\u4fdd\u5b58\u3002
\n <\/p>\n
JSP\u52a8\u4f5c\u6807\u8bb0<\/h2>\n
include\u3001param\u52a8\u4f5c\u6807\u8bb0
\n\u4ed6\u4eec\u7684\u8bed\u6cd5\u683c\u5f0f\u662f\uff1a<\/p>\n
<jsp:include page=\"\u6587\u4ef6\u7684URL\">\n     <jsp:param name=\"\u540d\u5b57\" value=\"\u6307\u5b9a\u7ed9param\u7684\u503c\"\/>\n     \u00b7\u00b7\u00b7\n     \u00b7\u00b7\u00b7\n   <\/jsp:include><\/pre>\n
 
\n\u8be5\u6807\u8bb0\u53ef\u4ee5\u5c06param\u4e2d\u7684\u503c\u4f20\u9012\u5230include\u52a8\u4f5c\u8981\u52a0\u8f7d\u7684\u6587\u4ef6\u4e2d\u53bb\uff0c\u88ab\u52a0\u8f7d\u7684JSP\u9875\u9762\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u65b9\u6cd5request\u83b7\u53d6param\u7684\u503c\u3002
\n\"\"
\nexample2_11.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY  bgcolor=white >\n<% double a=3,b=4,c=5;\n%>\n<BR>\u52a0\u8f7dtriangle.jsp\u8ba1\u7b97\u4e09\u8fb9\u4e3a<%=a%>,<%=b%>,<%=c%>\u7684\u4e09\u89d2\u5f62\u9762\u79ef\uff1a\n   <jsp:include page=\"myfile\/triangle.jsp\">\n     <jsp:param name=\"sideA\" value=\"<%=a%>\"\/>\n     <jsp:param name=\"sideB\" value=\"<%=b%>\"\/>\n     <jsp:param name=\"sideC\" value=\"<%=c%>\"\/>\n   <\/jsp:include>\n<\/BODY><\/HTML><\/pre>\n
 
\n\u6211\u4eec\u5728\u6839\u76ee\u5f55\u4e0b\u7684myfile\u4e2d\u65b0\u5efatriangle.jsp
\ntriangle.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<%! public String getArea(double a,double b,double c)\n     { if(a+b>c&&a+c>b&&c+b>a)\n        {   double p=(a+b+c)\/2.0;\n            double area=Math.sqrt(p*(p-a)*(p-b)*(p-c)) ;\n            return \"\"+area;\n        }\n      else\n        {  return(\"\"+a+\",\"+b+\",\"+c+\"\u4e0d\u80fd\u6784\u6210\u4e00\u4e2a\u4e09\u89d2\u5f62,\u65e0\u6cd5\u8ba1\u7b97\u9762\u79ef\");\n        }\n    }\n %>\n <%   String sideA=request.getParameter(\"sideA\");\n       String sideB=request.getParameter(\"sideB\");\n       String sideC=request.getParameter(\"sideC\");\n       double a=Double.parseDouble(sideA);\n       double b=Double.parseDouble(sideB);\n       double c=Double.parseDouble(sideC);\n %>\n <Font color=blue size=4>\n <P>\u6211\u662f\u88ab\u52a0\u8f7d\u7684\u6587\u4ef6,\u8d1f\u8d23\u8ba1\u7b97\u4e09\u89d2\u5f62\u7684\u9762\u79ef<BR>\n    \u7ed9\u6211\u4f20\u9012\u7684\u4e09\u8fb9\u662f:<%=sideA%>,<%=sideB%>,<%=sideC%>\n <BR>\u4e09\u89d2\u5f62\u7684\u9762\u79ef:<%= getArea(a,b,c)%>\n <\/Font><\/pre>\n
 
\n\u6211\u4eec\u8bbf\u95eeexample2_11.jsp\u9875\u9762\uff0c\u53d1\u73b0\u5df2\u7ecf\u663e\u793a\u4e86\u8df3\u8f6c\u9875\u9762\u4e2d\u7684\u7ed3\u679c\u3002
\n
\"\"
triangle\u6253\u9519\u4e86\uff0c\u61d2\u7684\u53bb\u91cd\u65b0\u622a\u56fe\u4e0a\u4f20\u4e86emmm<\/p><\/div>
\n 
\n\u52a8\u4f5c\u6807\u8bb0\u662f\u52a8\u6001\u7684\uff0c\u4e0d\u662f\u5728\u7f16\u8bd1\u8fc7\u7a0b\u4e2d\u52a0\u5165\u7684\uff0c\u800c\u662f\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u7531\u5f15\u64ce\u6839\u636e\u6587\u4ef6\u683c\u5f0f\u7684\u4e0d\u540c\uff08\u5982\u679c\u662f\u6587\u672c\u6587\u4ef6\u76f4\u63a5\u53d1\u9001\u5230\u5ba2\u6237\u7aef\uff0c\u5982\u679c\u662fJSP\u6587\u4ef6\u5219\u672c\u5730\u6267\u884c\u53d1\u9001\u7ed3\u679c\uff09\uff0c\u52a8\u6001\u7684\u6267\u884c\u3002
\n\u6240\u4ee5\u8fd9\u91cc\u7684triangle.jsp\u6587\u4ef6\u5c31\u5fc5\u987b\u662f.jsp\u6587\u4ef6\uff0c\u5982\u679c\u662f\u5176\u4ed6\u683c\u5f0f\u7684\u6587\u4ef6\uff0c\u4f1a\u76f4\u63a5\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u800c\u4e0d\u6267\u884c\uff08\u6d4f\u89c8\u5668\u663e\u793a\u4ee3\u7801\uff09\uff0c\u4e0a\u4e2a\u6817\u5b50\u4e2dok.jsp\u4e4b\u6240\u4ee5\u53ef\u4ee5\u662f\u5f88\u591a\u683c\u5f0f\u662f\u56e0\u4e3a\u9759\u6001\u63d2\u5165\u65f6\uff0cJSP\u5f15\u64ce\u5728\u7f16\u8bd1\u65f6\u5c06ok.jsp\u5408\u5e76\u5165\u4e86\u90a3\u4e24\u4e2a\u9875\u9762\u53d8\u6210\u4e00\u4e2a\u9875\u9762\u4e86\u3002
\n <\/p>\n
\u9759\u6001\u63d2\u5165\u548c\u52a8\u6001\u63d2\u5165\u7684\u533a\u522b\uff1a<\/h5>\n
\u5c3d\u7ba1\u4ed6\u4eec\u7684\u4f5c\u7528\u90fd\u662f\u5904\u7406\u6240\u9700\u8981\u7684\u6587\u4ef6\uff0c\u4f46\u662f\u5904\u7406\u65b9\u5f0f\u548c\u5904\u7406\u65f6\u95f4\u662f\u4e0d\u540c\u7684\u3002include\u6307\u4ee4\u6807\u8bb0\uff08\u9759\u6001\uff09\u662f\u5728\u7f16\u8bd1\u9636\u6bb5<\/strong>\u5c31\u5904\u7406\u6240\u9700\u8981\u7684\u6587\u4ef6\uff0c\u88ab\u5904\u7406\u7684\u6587\u4ef6\u5728\u903b\u8f91\u548c\u8bed\u6cd5\u4e0a\u4f9d\u8d56\u4e8e\u5f53\u524d\u7684JSP\u6587\u4ef6\uff0c\u5176\u4f18\u70b9\u662f\u9875\u9762\u7684\u6267\u884c\u901f\u5ea6\u5feb<\/strong>\u3002include\u52a8\u4f5c\u6807\u8bb0\uff08\u52a8\u6001\uff09\u662f\u5728JSP\u9875\u9762\u8fd0\u884c\u65f6<\/strong>\u518d\u5904\u7406\u6587\u4ef6\uff0c\u88ab\u5904\u7406\u7684\u6587\u4ef6\u5728\u903b\u8f91\u548c\u8bed\u6cd5\u4e0a\u72ec\u7acb\u4e8e\u5f53\u524d\u7684JSP\u9875\u9762\uff0c\u5176\u4f18\u70b9\u662f\u53ef\u4ee5\u4f7f\u7528param\u5b50\u6807\u8bb0\u66f4\u7075\u6d3b\u5730\u5904\u7406\u6240\u9700\u8981\u7684\u6587\u4ef6\uff0c\u7f3a\u70b9\u662f\u6267\u884c\u901f\u5ea6\u6162<\/strong>\u4e00\u4e9b\u3002
\n <\/p>\n
forward \u52a8\u4f5c\u6807\u8bb0<\/h3>\n
\u8bed\u6cd5\u683c\u5f0f\uff1a<\/p>\n
<jsp:forward page:\"\u8981\u8f6c\u5411\u7684\u9875\u9762\"\/>\n\u6216\u8005\n<jsp:forward page:\"\u8981\u8f6c\u5411\u7684\u9875\u9762\">\n    <jsp:param name=\"\u540d\u5b57\" value=\"\u503c\">\n    \u00b7\u00b7\u00b7\n    \u00b7\u00b7\u00b7\n<\/jsp:forward><\/pre>\n
 
\n\u5f53\u6ca1\u6709param\u5b50\u6807\u8bb0\u65f6\u5fc5\u987b\u4f7f\u7528\u7b2c\u4e00\u79cd\u683c\u5f0f\u3002
\n\u8be5\u6307\u4ee4\u7684\u4f5c\u7528\u662f\uff1a\u4ece\u8be5\u6307\u4ee4\u5904\u505c\u6b62<\/strong>\u5f53\u524d\u9875\u9762\u7684\u6267\u884c\uff0c\u800c\u8f6c\u5411\u6267\u884cpage\u5c5e\u6027\u6307\u5b9a\u7684JSP\u9875\u9762\u3002
\n 
\nexample2_12.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY>\n<%  double i=Math.random();\n    if(i>0.5)\n    {\n%>  <jsp:forward page=\"\/myfile\/frontSide.jsp\" >\n          <jsp:param name=\"number\" value=\"<%= i %>\" \/>\n     <\/jsp:forward>\n<%  }\n   else\n    {\n %>  <jsp:forward page=\"\/myfile\/reverseSide.jsp\" >\n          <jsp:param name=\"number\" value=\"<%= i %>\" \/>\n      <\/jsp:forward>\n <% }\n %>\n<\/BODY><\/HTML><\/pre>\n
 
\n\u5728myfile\u4e2d\u65b0\u5efa
\nfrontSide.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY bgcolor=white><Font size=3>\n <% String s=request.getParameter(\"number\");\n    out.println(\"<BR>\u4f20\u9012\u8fc7\u6765\u7684\u503c\u662f\"+s);\n %>\n <BR>\u8fd9\u662f\u53e6\u4e00\u4e2a\u9875\u9762\n<\/FONT><\/BODY><\/HTML><\/pre>\n
 
\nreceiveSide.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=GB2312\" %>\n<HTML><BODY bgcolor=white><Font size=3>\n <% String s=request.getParameter(\"number\");\n    out.println(\"\u4f20\u9012\u8fc7\u6765\u7684\u503c\u662f\"+s);\n %>\n <BR>\u8fd9\u662f\u4e00\u4e2a\u9875\u9762\n<\/FONT><\/BODY><\/HTML><\/pre>\n
 
\n\u6211\u4eec\u8bbf\u95ee127.0.0.1:8080\/example2_12.jsp
\n\"\"
\n 
\n\u6216\u8005
\n 
\n\"\"
\n 
\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5f53\u524d\u9875\u9762\u4f7f\u7528forward\u52a8\u4f5c\u6807\u8bb0\u8f6c\u5411\u540e\uff0c\u5c3d\u7ba1\u7528\u6237\u770b\u5230\u4e86\u8f6c\u5411\u540e\u7684\u9875\u9762\u7684\u6548\u679c\uff0c\u4f46\u662f\u6d4f\u89c8\u5668\u7684\u5730\u5740\u680f\u4f9d\u7136\u662f\u8f6c\u5411\u524d\u7684JSP\u9875\u9762\uff0c\u56e0\u6b64\uff0c\u5982\u679c\u5237\u65b0\u5f53\u524d\u9875\u9762\uff0c\u4f1a\u56de\u5230\u8f6c\u5411\u524d\u7684\u9875\u9762\u3002
\n <\/p>\n
useBean \u52a8\u4f5c\u6807\u8bb0<\/h3>\n
\u89c1JSP\u4e0ejavaBean\u3002
\n <\/p>\n
\u8bfe\u540e\u9898\uff1a<\/strong><\/h3>\n
1.”<%!”\u548c”%>”\u4e4b\u95f4\u58f0\u660e\u7684\u53d8\u91cf\u4e0e.”<%”\u548c”%>”\u4e4b\u95f4\u58f0\u660e\u7684\u53d8\u91cf\u6709\u4f55\u4e0d\u540c\uff1f
\n\u00b7\u00a0\u00a0 <%! %>\u4e4b\u95f4\u58f0\u660e\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u5728\u6574\u4e2ajsp\u9875\u9762\u5185\u90fd\u6709\u6548\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ef\u4ee5\u7406\u89e3\u4e3a<%! %>\u4e4b\u95f4\u58f0\u660e\u7684\u662f\u5168\u5c40\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\uff0c\u65b9\u6cd5\u53ef\u4ee5\u88ab\u516c\u6709\u4f7f\u7528\uff0c\u53d8\u91cf\u5219\u53ef\u4ee5\u88ab\u6240\u6709\u65b9\u6cd5\u8c03\u7528\u6539\u53d8\u3002\u5f53\u6709\u8fd0\u884c\u591a\u4e2a\u7ebf\u7a0b\u65f6\uff0c\u4efb\u4f55\u4e00\u4e2a\u7ebf\u7a0b\u5bf9jsp\u9875\u9762\u6210\u5458\u53d8\u91cf\u64cd\u4f5c\u7684\u7ed3\u679c\uff0c\u90fd\u4f1a\u5f71\u54cd\u5176\u4ed6\u7ebf\u7a0b\u3002
\n\u5728<% %>\u4e4b\u95f4\u58f0\u660e\u7684\u53d8\u91cf\u5219\u4e3a\u201c\u5c40\u90e8\u53d8\u91cf\u201d\uff0c\u5f53\u8fd0\u884c\u591a\u4e2a\u7ebf\u7a0b\u65f6\uff0c\u4e0d\u540c\u7ebf\u7a0b\u4e2d\u7684java\u7a0b\u5e8f\u7247\u7684\u5c40\u90e8\u53d8\u91cf\u4e92\u4e0d\u5e72\u6270\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e00\u4e2a\u7528\u6237\u6539\u53d8java\u7a0b\u5e8f\u7247\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u7684\u503c\u4e0d\u4f1a\u5f71\u54cd\u4e0b\u4e00\u4e2a\u7528\u6237java\u7a0b\u5e8f\u7247\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u3002
\n2.\u5982\u679c\u6709\u4e24\u4e2a\u7528\u6237\u8bbf\u95ee\u4e00\u4e2aJSP\u9875\u9762\uff0c\u8be5\u9875\u9762\u4e2d\u7684java\u7a0b\u5e8f\u7247\u5c06\u88ab\u6267\u884c\u51e0\u6b21\uff1f
\n\u00b7\u00a0\u00a0\u00a0 \u4e24\u6b21\u3002\uff08java\u7a0b\u5e8f\u7247\u7279\u6307<% %>\u4e2d\u7684java\u8bed\u53e5\uff09
\n3.\u662f\u5426\u5141\u8bb8JSP\u9875\u9762\u540c\u65f6\u542b\u6709\u5982\u4e0b\u4e24\u6761page\u6307\u4ee4\uff1a<%@ page contentType=”text\/html;charset=gb2312″ %>\u3001<%@ page contentType=”application\/msword” %>
\n\u00b7\u00a0\u00a0\u00a0 \u4e0d\u5141\u8bb8\u3002
\n4.\u662f\u5426\u5141\u8bb8JSP\u9875\u9762\u540c\u65f6\u542b\u6709\u5982\u4e0b\u4e24\u6761page\u6307\u4ee4\uff1a<%@ page import=”java.util.*” %>\u3001<%@ page import=”java.sql.*” %>
\n\u00b7\u00a0\u00a0\u00a0 \u5141\u8bb8\u3002
\n5.\u5047\u8bbe\u6709\u4e24\u4e2a\u7528\u6237\u8bbf\u95ee\u4e0b\u5217JSP\u9875\u9762hello.jsp\uff0c\u8bf7\u95ee\u7b2c\u4e00\u4e2a\u8bbf\u95ee\u548c\u7b2c\u4e8c\u4e2a\u8bbf\u95eehello.jsp\u9875\u9762\u7684\u7528\u6237\u770b\u5230\u7684\u9875\u9762\u7684\u6548\u679c\u6709\u4f55\u4e0d\u540c\uff1f
\nhello.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<%@ page isThreadSafe=\"flase\" %>\n<HTML><BODY>\n    <%! int sum = 1;\n        void add(int m){\n            sum = sum+m;\n        }\n%>\n<%      int n = 100;\n        add(n);\n%>\n<%=sum%>\n<\/BODY><\/HTML><\/pre>\n
\u00b7\u00a0\u00a0\u00a0 \u7b2c\u4e00\u4e2a\u7528\u6237\u770b\u5230\u7684\u662f101\uff0c\u7b2c\u4e8c\u4e2a\u7528\u6237\u770b\u5230\u7684\u662f201\u3002
\n6.\u8bf7\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684JSP\u9875\u9762\uff0c\u663e\u793a\u82f1\u6587\u5b57\u6bcd\u8868\u3002<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<%\n  char letter = 'a';\n  for(int i=0;i<26;i++){\n    out.println((char)(letter+i));\n  }\n  %>\n  <BR>\n<%\n  letter = (char)(letter-32);\n  for(int i=0;i<26;i++){\n    out.println((char)(letter+i));\n  }\n%><\/pre>\n
 
\n7.\u8bf7\u7b80\u5355\u53d9\u8ff0include\u6307\u4ee4\u6807\u8bb0\u548cinclude\u52a8\u4f5c\u6807\u8bb0\u7684\u4e0d\u540c\u3002
\n\u00b7\u00a0\u00a0\u00a0 include\u6307\u4ee4\u6807\u8bb0\u662f\u5728\u7f16\u8bd1\u9636\u6bb5\u5c31\u5904\u7406\u6240\u9700\u8981\u7684\u6587\u4ef6\uff0c\u88ab\u5904\u7406\u7684\u6587\u4ef6\u5728\u903b\u8f91\u548c\u8bed\u6cd5\u4e0a\u4f9d\u8d56\u4e8e\u5f53\u524d\u7684JSP\u6587\u4ef6\uff0c\u5176\u4f18\u70b9\u662f\u9875\u9762\u7684\u6267\u884c\u901f\u5ea6\u5feb\u3002include\u52a8\u4f5c\u6807\u8bb0\u662f\u5728JSP\u9875\u9762\u8fd0\u884c\u65f6\u518d\u5904\u7406\u6587\u4ef6\uff0c\u88ab\u5904\u7406\u7684\u6587\u4ef6\u5728\u903b\u8f91\u548c\u8bed\u6cd5\u4e0a\u72ec\u7acb\u4e8e\u5f53\u524d\u7684JSP\u9875\u9762\uff0c\u5176\u4f18\u70b9\u662f\u53ef\u4ee5\u4f7f\u7528param\u5b50\u6807\u8bb0\u66f4\u7075\u6d3b\u5730\u5904\u7406\u6240\u9700\u8981\u7684\u6587\u4ef6\uff0c\u7f3a\u70b9\u662f\u6267\u884c\u901f\u5ea6\u6162\u4e00\u4e9b\u3002
\n8.\u7f16\u5199\u4e09\u4e2aJSP\u9875\u9762\uff1amain.jsp\u3001circle.jsp\u548cladder.jsp\uff0c\u5c06\u4e09\u4e2aJSP\u9875\u9762\u4fdd\u5b58\u5728Web\u670d\u52a1\u5668\u76ee\u5f55\u4e2d\u3002main\u4f7f\u7528include\u52a8\u4f5c\u6807\u8bb0\u52a0\u8f7dcircle\u548cladder\u9875\u9762\u3002circle\u9875\u9762\u53ef\u4ee5\u8ba1\u7b97\u5e76\u663e\u793a\u5706\u7684\u9762\u79ef\uff0cladder\u9875\u9762\u53ef\u4ee5\u8ba1\u7b97\u5e76\u663e\u793a\u68af\u5f62\u7684\u9762\u79ef\u3002\u5f53circle\u548cladder\u88ab\u52a0\u8f7d\u65f6\u83b7\u53d6main\u9875\u9762include\u52a8\u4f5c\u6807\u8bb0\u7684param\u5b50\u6807\u8bb0\u63d0\u4f9b\u7684\u5706\u7684\u534a\u5f84\u4ee5\u53ca\u63d0\u9192\u7684\u4e0a\u5e95\u3001\u4e0b\u5e95\u548c\u9ad8\u7684\u503c\u3002
\nmain.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<%\n  int r = 3;\n  int upper = 1,lower = 2,high = 1;\n%>\n<jsp:include page=\"\/myfile\/circle.jsp\">\n  <jsp:param name=\"r\" value=\"<%=r%>\"\/>\n<\/jsp:include>\n<jsp:include page=\"myfile\/ladder.jsp\">\n  <jsp:param name=\"upper\" value=\"<%= upper%>\"\/>\n  <jsp:param name=\"lower\" value=\"<%= lower%>\"\/>\n  <jsp:param name=\"high\" value=\"<%= high%>\"\/>\n<\/jsp:include><\/pre>\n
 
\ncircle.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<%!\n  public double compute(int r){\n    return r*r*3.14159265;\n  }\n%>\n<%\n  String r = request.getParameter(\"r\");\n  int a = Integer.parseInt(r);\n  double area = compute(a);\n%>\n<frot color=blue size=2>\n<br>\n\u5706\u7684\u9762\u79ef\u662f<%=area%><\/pre>\n
 
\nladder.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<%!\n  double compute(int upper,int lower,int high){\n    return (upper+lower)*high\/2;\n  }\n%>\n<%\n  String upper = request.getParameter(\"upper\");\n  String lower = request.getParameter(\"lower\");\n  String high = request.getParameter(\"high\");\n  double area = compute(Integer.parseInt(upper),Integer.parseInt(lower),Integer.parseInt(high));\n%>\n<frot color=blue size=2>\n<br>\n\u68af\u5f62\u7684\u9762\u79ef\u662f<%=area%><\/pre>\n
 
\n\"\"
\n <\/p>\n","protected":false},"excerpt":{"rendered":"
JSP\u9875\u9762\u57fa\u672c\u7ed3\u6784\uff1a \u7ec4\u6210\u5143\u7d20 \u666e\u901a\u7684HTML\u6807\u8bb0\u7b26 JSP\u6807\u8bb0\uff08\u6307\u4ee4\u6807\u8bb0 \u52a8\u4f5c\u6807\u8bb0\uff09 \u53d8\u91cf\u548c\u65b9\u6cd5\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[22],"tags":[],"views":7891,"_links":{"self":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/200"}],"collection":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/comments?post=200"}],"version-history":[{"count":0,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/200\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/media?parent=200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/categories?post=200"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/tags?post=200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}