package coreservlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.ut本文来源gao@daima#com搞(%代@#码网@il.*;
/** 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) +
“<body BGCOLOR=\”#FDF5E6\”>\n” +
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