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获取jsp各种参数 时间：2004/11/7 3:36:00来源：本站整理作者：蓝点我要评论(0)

package coreservlets;

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

import java.util.*;

/** Creates a table showing the current value of each

* of the standard CGI variables.

*

* Taken from Core Servlets and JavaServer Pages

* from Prentice Hall and Sun Microsystems Press,

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

* © 2000 Marty Hall; may be freely used or adapted.

*/

public class ShowCGIVariables extends HttpServlet {

public void doGet(HttpServletRequest request,

HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

PrintWriter out = 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() }

};

String title = "Servlet Example: Showing CGI Variables";

out.println(ServletUtilities.headWithTitle(title) +

"\n" +

"

" + title + "

\n" +

"\n" +

"\n" +

"

CGI Variable Name	Value"); for(int i=0; i String varName = variables[i][0]; String varValue = variables[i][1]; if (varValue == null) varValue = "Not specified"; out.println("
" + varName + "	" + varValue); } out.println("

");

}

/** POST and GET requests handled identically. */

public void doPost(HttpServletRequest request,

HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response);

}

}