showcgivariables.java

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import java.io.*; 
import javax.servlet.*; 
import javax.servlet.http.*; 
import java.util.*; 

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 = "显示CGI变量"; 
		out.println(ServletUtilities.headWithTitle(title) + 
			"＜BODY BGCOLOR=＼"#FDF5E6＼"＞＼n" + 
			"＜H1 ALIGN=CENTER＞" + title + "＜/H1＞＼n" + 
			"＜TABLE BORDER=1 ALIGN=CENTER＞＼n" + 
			"＜TR BGCOLOR=＼"#FFAD00＼"＞＼n" + 
			"＜TH＞CGI Variable Name＜TH＞Value"); 
		for(int i=0; i＜variables.length; i++) { 
			String varName = variables[i][0]; 
			String varValue = variables[i][1]; 
			if (varValue == null) 
				varValue = "＜I＞Not specified＜/I＞"; 
			out.println("＜TR＞＜TD＞" + varName + "＜TD＞" + varValue); 
		} 
		out.println("＜/TABLE＞＜/BODY＞＜/HTML＞"); 
	} 
	
	public void doPost(HttpServletRequest request, 
		HttpServletResponse response) 
		throws ServletException, IOException { 
		doGet(request, response); 
	} 
}