package com.listings.web.controller;import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;public class CatchPic {public static boolean saveUrlAs(String fileUrl, String savePath)/* fileUrl网络资源地址 */  {  try {  /* 将网络资源地址传给,即赋值给url */  URL url = new URL(fileUrl);  /* 此为联系获得网络资源的固定格式用法，以便后面的in变量获得url截取网络资源的输入流 */  HttpURLConnection connection = (HttpURLConnection) url.openConnection();  DataInputStream in = new DataInputStream(connection.getInputStream());  /* 此处也可用BufferedInputStream与BufferedOutputStream  需要保存的路径*/  DataOutputStream out = new DataOutputStream(new FileOutputStream(savePath));  /* 将参数savePath，即将截取的图片的存储在本地地址赋值给out输出流所指定的地址 */  byte[] buffer = new byte[4096];  int count = 0;  while ((count = in.read(buffer)) > 0)/* 将输入流以字节的形式读取并写入buffer中 */  {  out.write(buffer, 0, count);  }  out.close();/* 后面三行为关闭输入输出流以及网络资源的固定格式 */  in.close();  connection.disconnect();  return true;/* 网络资源截取并存储本地成功返回true */  } catch (Exception e) {  System.out.println(e + fileUrl + savePath);  return false;  }  }  public static void main(String[] args) {  CatchPic pic = new CatchPic();/* 创建实例 */  //需要下载的URL  String photoUrl = "http://photos.listhub.net/GAMLS/07442715/25?lm=20150426T002920";  // 截取最后/后的字符串  String fileName = new Date().getTime()+".png";  //图片保存路径  String filePath = "D:/img/";  /* 调用函数，并且进行传参 */  boolean flag = pic.saveUrlAs(photoUrl, filePath + fileName);  System.out.println("Run ok!\n Get URL file " + flag);  System.out.println(filePath);  System.out.println(fileName);  }  }