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網(wǎng)絡(luò)資源地址 */          {                     try {                  /* 將網(wǎng)絡(luò)資源地址傳給,即賦值給url */                  URL url = new URL(fileUrl);                                     /* 此為聯(lián)系獲得網(wǎng)絡(luò)資源的固定格式用法，以便后面的in變量獲得url截取網(wǎng)絡(luò)資源的輸入流 */                  HttpURLConnection connection = (HttpURLConnection) url.openConnection();                  DataInputStream in = new DataInputStream(connection.getInputStream());                                     /* 此處也可用BufferedInputStream與BufferedOutputStream  需要保存的路徑*/                  DataOutputStream out = new DataOutputStream(new FileOutputStream(savePath));                                                        /* 將參數(shù)savePath，即將截取的圖片的存儲在本地地址賦值給out輸出流所指定的地址 */                  byte[] buffer = new byte[4096];                  int count = 0;                  while ((count = in.read(buffer)) > 0)/* 將輸入流以字節(jié)的形式讀取并寫入buffer中 */                  {                      out.write(buffer, 0, count);                  }                  out.close();/* 后面三行為關(guān)閉輸入輸出流以及網(wǎng)絡(luò)資源的固定格式 */                  in.close();                  connection.disconnect();                  return true;/* 網(wǎng)絡(luò)資源截取并存儲本地成功返回true */                     } catch (Exception e) {                  System.out.PRintln(e + fileUrl + savePath);                  return false;              }          }                 public static void main(String[] args) {              CatchPic pic = new CatchPic();/* 創(chuàng)建實例 */                             //需要下載的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";                             //圖片保存路徑              String filePath = "D:/img/";                             /* 調(diào)用函數(shù)，并且進行傳參 */              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);          }   }