Java语言抓取内容

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
​
public class WechatDownloader {
    public static void main(String[] args) {
        try {
            // 创建HttpClient实例
            HttpClient httpClient = new DefaultHttpClient();
​
            // 创建URI
            URI uri = new URI("https://www.wechat.com");
​
            // 创建HttpGet请求
            HttpGet httpGet = new HttpGet();
            httpGet.setURI(uri);
​
            // 执行HTTP请求
            HttpResponse response = httpClient.execute(httpGet);
​
            // 获取响应实体
            HttpEntity entity = response.getEntity();
​
            // 输出响应实体内容
            System.out.println(EntityUtils.toString(entity));
​
            // 释放资源
            httpClient.getConnectionManager().shutdown();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}