[转]java 下载网络上的图片并保存到本地目录
原文地址:http://takeme.iteye.com/blog/1683380
1 import java.io.File; 2 import java.io.FileOutputStream; 3 import java.io.InputStream; 4 import java.io.OutputStream; 5 import java.net.URL; 6 import java.net.URLConnection; 7 8 9 public class DownloadImage { 10 11 /** 12 * @param args 13 * @throws Exception 14 */ 15 public static void main(String[] args) throws Exception { 16 // TODO Auto-generated method stub 17 download("http://ui.51bi.com/opt/siteimg/images/fanbei0923/Mid_07.jpg", "51bi.gif","c:\\image\\"); 18 } 19 20 public static void download(String urlString, String filename,String savePath) throws Exception { 21 // 构造URL 22 URL url = new URL(urlString); 23 // 打开连接 24 URLConnection con = url.openConnection(); 25 //设置请求超时为5s 26 con.setConnectTimeout(5*1000); 27 // 输入流 28 InputStream is = con.getInputStream(); 29 30 // 1K的数据缓冲 31 byte[] bs = new byte[1024]; 32 // 读取到的数据长度 33 int len; 34 // 输出的文件流 35 File sf=new File(savePath); 36 if(!sf.exists()){ 37 sf.mkdirs(); 38 } 39 OutputStream os = new FileOutputStream(sf.getPath()+"\\"+filename); 40 // 开始读取 41 while ((len = is.read(bs)) != -1) { 42 os.write(bs, 0, len); 43 } 44 // 完毕,关闭所有链接 45 os.close(); 46 is.close(); 47 } 48 49 }