httpClient通过代理（Http Proxy）进行请求

httpClient通过代理（Http Proxy）进行请求 
在浏览一些网站的时候由于各种原因，无法进行访问。 
这时我们需要通过IE，FireFox进行Http的代理设置， 
当然httpClient也为我们提供这样的设置 
使用匿名代理 

HttpClient httpClient = new HttpClient();
//设置代理服务器的ip地址和端口
httpClient.getHostConfiguration().setProxy("192.168.101.1", 5608);
//使用抢先认证
httpClient.getParams().setAuthenticationPreemptive(true);

如果代理需要用户，密码进行验证 

HttpClient httpClient = new HttpClient();
httpClient.getHostConfiguration().setProxy("192.168.101.1", 5608);
httpClient.getParams().setAuthenticationPreemptive(true);
//如果代理需要密码验证，这里设置用户名密码
httpClient.getState().setProxyCredentials(AuthScope.ANY, new UsernamePasswordCredentials("llying.iteye.com","llying"));