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120

Chapter 5 Accessing the Standard CGI Variables

Listing 5.1 ShowCGIVariables.java (continued)

        { "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("
");