今天小编给大家分享一篇获取jsp参数深度详解，感兴趣的朋友跟小编一起来了解一下吧!

　　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);

　　}

　　}

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