import  org.apache.commons.httpclient.HttpClient;
 import  org.apache.commons.httpclient.HttpException;
 import  org.apache.commons.httpclient.HttpStatus;
 import  org.apache.commons.httpclient.methods.GetMethod;

 import  javax.servlet.http.HttpServlet;
 import  javax.servlet.http.HttpServletRequest;
 import  javax.servlet.http.HttpServletResponse;
 import  javax.servlet.ServletException;
 import  java.io.IOException;
 import  java.io.PrintWriter;

 public   class  Parser  extends  HttpServlet {
     protected   void  doPost(HttpServletRequest request, HttpServletResponse response)  throws  ServletException, IOException {
        doGet(request, response);
    }

     protected   void  doGet(HttpServletRequest request, HttpServletResponse response)  throws  ServletException, IOException {


        System.setProperty("apache.commons.httpclient.cookiespec", "COMPATIBILITY");
        String url = request.getParameter("url");



          // Create an instance of HttpClient.
          HttpClient client =  new  HttpClient();

          // Create a method instance.
          GetMethod method =  new  GetMethod(url);

           try  {
            // Execute the method.
             int  statusCode = client.executeMethod(method);

             if  (statusCode != HttpStatus.SC_OK) {
              System.err.println("Method failed: " + method.getStatusLine());
            }

            // Read the response body.
             byte [] responseBody = method.getResponseBody();

            // Deal with the response.
            // Use caution: ensure correct character encoding and is not binary data
            response.addHeader("host",method.getHostConfiguration().getHost());
            PrintWriter out = response.getWriter();              
            out.println( new  String(responseBody));
            out.close();

          }  catch  (HttpException e) {
            System.err.println("Fatal protocol violation: " + e.getMessage());
            e.printStackTrace();
          }  catch  (IOException e) {
            System.err.println("Fatal transport error: " + e.getMessage());
            e.printStackTrace();
          }  finally  {
            // Release the connection.
            method.releaseConnection();            
          }
    }
}

response.addHeader("host",method.getHostConfiguration().getHost());

 import  org.apache.commons.httpclient.*;
 import  org.apache.commons.httpclient.methods.GetMethod;

 import  javax.servlet.http.HttpServlet;
 import  javax.servlet.http.HttpServletRequest;
 import  javax.servlet.http.HttpServletResponse;
 import  javax.servlet.ServletException;
 import  java.io.IOException;
 import  java.io.PrintWriter;

 public   class  Parser  extends  HttpServlet {
     protected   void  doPost(HttpServletRequest request, HttpServletResponse response)  throws  ServletException, IOException {
        doGet(request, response);
    }

     protected   void  doGet(HttpServletRequest request, HttpServletResponse response)  throws  ServletException, IOException {
        String url = request.getParameter("url");
        HttpClient client =  new  HttpClient();
        HttpMethod method =  new  GetMethod(url);

        client.executeMethod(method);
        Header[] h = method.getRequestHeaders();
         for  ( int  i= 0 ; i<h.length;i++) {
            response.addHeader(h[i].getName(),h[i].getValue());
        }
        String str = method.getResponseBodyAsString();
        response.setHeader("host",method.getHostConfiguration().getHost());
        PrintWriter out = response.getWriter();
        out.println(str);
        method.releaseConnection();
        out.close();
    }
}