Set the proxy for httpclient and set the HTTP header.

In the school Park network, to agents to the Internet. What to do when writing a program to get online resources. You can also set up a proxy for your program. I use the 3.1 version of HttpClient. Some websites can be accessed by the browser, but the program can be browser-like, mainly set HTTP headers.

Set in Hostconfiguration.setproxy. such as the following code: package com.chenlb;      import java.io.ioexception;   import  java.util.arraylist;   import java.util.list;      import  org.apache.commons.httpclient.defaulthttpmethodretryhandler;   import  org.apache.commons.httpclient.header;   import org.apache.commons.httpclient.httpclient;    import org.apache.commons.httpclient.httpexception;   import  org.apache.commons.httpclient.httpstatus;   import  org.apache.commons.httpclient.usernamepasswordcredentials;   import  org.apache.commons.httpclient.auth.authscope;   import  org.apache.commons.httpclient.methods.getmethod;   import  org.apache.commons.httpclient.params.httpmethodparams;      public class  httpclientuse {          PUBLIC&NBSp;static void main (String[] args)  throws httpexception, ioexception {            HttpClient httpClient = new  HttpClient ();               Httpclient.gethostconfiguration (). SetProxy ("localhost",  808);               /*//Need verification            Usernamepasswordcredentials creds = new usernamepasswordcredentials ("Chenlb",  "123456 ");            httpclient.getstate (). Setproxycredentials ( authscope.any, creds);          */              //Set HTTP headers             list

If you want the username and password to be verified, please remove the/* */comment. Make validation valid.

Verification, the key is: usernamepasswordcredentials creds = new Usernamepasswordcredentials ("Chenlb", "123456"); Httpclient.getstate (). Setproxycredentials (Authscope.any, creds);

Sets the HTTP request header.   list