远程访问(post 传参数) 以及IOUtils复制文件

 package com.action;

 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;

 import org.apache.commons.io.IOUtils;
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.NameValuePair;
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.entity.UrlEncodedFormEntity;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.message.BasicNameValuePair;

 public class IOUtilTest {

     public static void main(String[] args) throws Exception{
         HttpClient client = new DefaultHttpClient();
         String URL = "http://www.ola.com.cn/img/icn_joke.png";
         //    String URL = "http://www.baidu.com/";
         //    HttpGet get = new HttpGet(URL);
         HttpPost post = new HttpPost(URL);
         NameValuePair p = new BasicNameValuePair("v", "123");
         List<NameValuePair> list = new ArrayList<NameValuePair>();
         list.add(new BasicNameValuePair("v", "140532246669"));
         StringEntity entity = new UrlEncodedFormEntity(list);
         post.setEntity(entity);
         HttpResponse res = client.execute(post);
         //if(res.getStatusLine().getStatusCode()==200){
         //         String result = EntityUtils.toString(res.getEntity());
         //         System.out.println(result+"\n");
         //}
         HttpEntity e = res.getEntity();
         InputStream is = null;
         is = e.getContent();
         File file = new File("D:\\2.png");
         FileOutputStream fos = new FileOutputStream(file);
         IOUtils.copy(is, fos);
         IOUtils.closeQuietly(is);
         fos.close();
     }
 }