jsp源码实例3(获取jsp各种参数)-豆柴文库

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jsp源码实例3（获取jsp各种参数）

packagecoreservlets;


importjava.io.*;

importjavax.servlet.*;

importjavax.servlet.http.*;

importjava.util.*;


/**Createsatableshowingthecurrentvalueofeach

*ofthestandardCGIvariables.

*


*TakenfromCoreServletsandJavaServerPages

*fromPrenticeHallandSunMicrosystemsPress,

*http://www.coreservlets.com/.

*&copy;2000MartyHall;maybefreelyusedoradapted.

*/


publicclassShowCGIVariablesextendsHttpServlet{

publicvoiddoGet(HttpServletRequestrequest,

HttpServletResponseresponse)

throwsServletException,IOException{
response.setContentType("text/html");

PrintWriterout=response.getWriter();

String[][]variables=

{{"AUTH_TYPE",request.getAuthType()},

{"CONTENT_LENGTH",

String.valueOf(request.getContentLength())},

{"CONTENT_TYPE",request.getContentType()},

{"DOCUMENT_ROOT",

getServletContext().getRealPath("/")},

{"PATH_INFO",request.getPathInfo()},

{"PATH_TRANSLATED",request.getPathTranslated()},

{"QUERY_STRING",request.getQueryString()},

{"REMOTE_ADDR",request.getRemoteAddr()},

{"REMOTE_HOST",request.getRemoteHost()},

{"REMOTE_USER",request.getRemoteUser()},

{"REQUEST_METHOD",request.getMethod()},

{"SCRIPT_NAME",request.getServletPath()},

{"SERVER_NAME",request.getServerName()},

{"SERVER_PORT",

String.valueOf(request.getServerPort())},

{"SERVER_PROTOCOL",request.getProtocol()},

{"SERVER_SOFTWARE",
getServletContext().getServerInfo()}

};

Stringtitle="ServletExample:ShowingCGIVariables";

out.println(ServletUtilities.headWithTitle(title)+

"\n"+

"
"+title+"
\n"+

"\n"+

"\n"+

"
Value");

for(inti=0;i

StringvarName=variables[0];

StringvarValue=variables[i][1];

if(varValue==null)

varValue="Notspecified";

CGIVariableNameout.println("
"+varValue);

"+varName+"}

out.println("
");

}


/**POSTandGETrequestshandledidentically.*/
publicvoiddoPost(HttpServletRequestrequest,

HttpServletResponseresponse)

throwsServletException,IOException{

doGet(request,response);

}

}


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