HttpClient 设置代理方式

HttpClient httpClient = new HttpClient();
//设置代理服务器的ip地址和端口
httpClient.getHostConfiguration().setProxy("10.0.3.99", 80);
//使用抢先认证
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("cnblogs.com","jay"));