HttpClient Examples:Proxy authentication

官方主頁：http://hc.apache.org/

 

Components

• HttpCore
• HttpClient

Proxy authentication

A simple example showing execution of an HTTP request over a secure connection tunneled through an authenticating proxy.

 

代理身份验证

 

一个简单的例子显示执行一个HTTP请求通过安全连接隧道通过认证代理。

 

package cn.lake.util;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * A simple example that uses HttpClient to execute an HTTP request 
 * over a secure connection tunneled through an authenticating proxy. 
 */
public class ClientProxyAuthentication {

	public static void main(String[] args) throws Exception {

		DefaultHttpClient httpclient = new DefaultHttpClient();

		httpclient.getCredentialsProvider().setCredentials(new AuthScope("localhost", 8080),
				new UsernamePasswordCredentials("username", "password"));

		HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https");
		HttpHost proxy = new HttpHost("localhost", 8080);

		httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

		HttpGet httpget = new HttpGet("/");

		System.out.println("executing request: " + httpget.getRequestLine());
		System.out.println("via proxy: " + proxy);
		System.out.println("to target: " + targetHost);

		HttpResponse response = httpclient.execute(targetHost, httpget);
		HttpEntity entity = response.getEntity();

		System.out.println("----------------------------------------");
		System.out.println(response.getStatusLine());
		if (entity != null) {
			System.out.println("Response content length: " + entity.getContentLength());
		}
		if (entity != null) {
			entity.consumeContent();
		}
	}
}

 

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