HttpClient example 学习一（快速开始）

package org.apache.http.examples.client;

import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class QuickStart {

	public static void main(String[] args) throws Exception {
		DefaultHttpClient httpclient = new DefaultHttpClient();
		HttpGet httpGet = new HttpGet("http://www.baidu.com");

		HttpResponse response1 = httpclient.execute(httpGet);

		// The underlying HTTP connection is still held by the response object
		// to allow the response content to be streamed directly from the
		// network socket.
		// In order to ensure correct deallocation of system resources
		// the user MUST either fully consume the response content or abort
		// request
		// execution by calling HttpGet#releaseConnection().

		try {
			System.out.println(response1.getStatusLine());
			HttpEntity entity1 = response1.getEntity();
			// do something useful with the response body
			// and ensure it is fully consumed
			EntityUtils.consume(entity1);
		} finally {
			httpGet.releaseConnection(); // 释放
		}

		/*
		HttpPost httpPost = new HttpPost("http://www.iteye.com");
		List<NameValuePair> nvps = new ArrayList<NameValuePair>();
		nvps.add(new BasicNameValuePair("username", "vip"));
		nvps.add(new BasicNameValuePair("password", "secret"));
		httpPost.setEntity(new UrlEncodedFormEntity(nvps));
		HttpResponse response2 = httpclient.execute(httpPost);

		try {
			System.out.println(response2.getStatusLine());
			HttpEntity entity2 = response2.getEntity();
			// do something useful with the response body
			// and ensure it is fully consumed
			EntityUtils.consume(entity2);
		} finally {
			httpPost.releaseConnection();
		}
		*/
	}
}