HttpClient4基础2--通过认证代理访问网页

package test.httpclient4.proxy;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
public class GetHttpByProxyCredentials {

/**
* @param args
* @throws IOException
* @throws ClientProtocolException
*/
public static void main(String[] args) throws ClientProtocolException, IOException {
//实例化一个HttpClient
HttpClient httpClient = new DefaultHttpClient();
//设定目标站点
HttpHost httpHost = new HttpHost("www.shanhe114.com");
//设置代理对象 ip/代理名称,端口
HttpHost proxy = new HttpHost("proxy.tt", 8080);
//实例化验证
CredentialsProvider credsProvider = new BasicCredentialsProvider();
//设定验证内容
UsernamePasswordCredentials creds = new UsernamePasswordCredentials("fttj", "ft07");
//创建验证
credsProvider.setCredentials(
new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
creds);
httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
((DefaultHttpClient)httpClient).setCredentialsProvider(credsProvider);

// 目标地址
HttpGet httpget = new HttpGet("/");
// 执行
HttpResponse response = httpClient.execute(httpHost, httpget);
if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){
//请求成功
//取得请求内容
HttpEntity entity = response.getEntity();
//显示内容
if (entity != null) {
// 显示结果

System.out.println(EntityUtils.toString(entity,"utf-8"));

}
if (entity != null) {
entity.consumeContent();
}
}
}
}