java 下载网络上的图片并保存到本地目录
import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.net.URL;import java.net.URLConnection;public class DownloadImage {/** * @param args * @throws Exception */public static void main(String[] args) throws Exception {// TODO Auto-generated method stub download("http://ui.51bi.com/opt/siteimg/images/fanbei0923/Mid_07.jpg", "51bi.gif","c:\\image\");}public static void download(String urlString, String filename,String savePath) throws Exception { // 构造URL URL url = new URL(urlString); // 打开连接 URLConnection con = url.openConnection(); //设置请求超时为5s con.setConnectTimeout(5*1000); // 输入流 InputStream is = con.getInputStream(); // 1K的数据缓冲 byte[] bs = new byte[1024]; // 读取到的数据长度 int len; // 输出的文件流 File sf=new File(savePath); if(!sf.exists()){ sf.mkdirs(); } OutputStream os = new FileOutputStream(sf.getPath()+"\"+filename); // 开始读取 while ((len = is.read(bs)) != -1) { os.write(bs, 0, len); } // 完毕，关闭所有链接 os.close(); is.close();} }