A Java class that can be used as a proxy server or forwarded

Project to use, here to simplify and general, highlighting the basic ideas, specific can be based on this class to modify.

Based on Java containers and Servlets.

Package Com.xxx.first;import Java.io.bufferedreader;import Java.io.ioexception;import java.io.InputStream;import Java.io.inputstreamreader;import Java.io.outputstream;import Java.io.printwriter;import Java.net.httpurlconnection;import Java.net.url;import Javax.servlet.http.httpservletrequest;import    Javax.servlet.http.httpservletresponse;import Org.apache.commons.compress.utils.ioutils;public class SimpleProxy {     /** * Submit to target server using get. * * @param request * @param response * @param targeturl * @throws IOException */private void Get ( HttpServletRequest request, HttpServletResponse response, String TargetUrl) throws ioexception {URL url = new URL (targe Turl); BufferedReader in = new BufferedReader (New InputStreamReader (Url.openstream ())); String Line; PrintWriter out = Response.getwriter (), while (line = In.readline ())! = null) {out.println (line);}    Out.flush (); In.close ();     }/** * submitted to the target server using post.  * * @param request * @param response   * @param targeturl * @throws IOException */private void post (HttpServletRequest request, httpservletrespons E response, String TargetUrl) throws ioexception {URL url = new URL (targeturl); HttpURLConnection conn = (httpurlconnection) url.openconnection ();//The Send POST request must be set to the following two lines conn.setdooutput (true); Conn.setdoinput (True); Conn.setrequestmethod ("POST");//Can copy the client's head information as the requested head parameter//Conn.setrequestproperty (" Charsert "," UTF-8 "), Conn.setrequestproperty (" Content-type "," Application/json ");//Direct The body of the client to the target server OutputStream Send = Conn.getoutputstream (); InputStream BODY = Request.getinputstream (); Ioutils.copy (body, send); Send.flush (); Send.close (); Body.close ();//Gets the return value BufferedReader in = new BufferedReader (New InputStreamReader (Conn.getinputstream () )); PrintWriter out = Response.getwriter (); String Line;while (line = In.readline ())! = null) {out.println (line);}    Out.flush (); }}

A Java class that can be used as a proxy server or forwarded