URL下载网络资源

public class URLDown { public static void main(String[] args) throws Exception{ //1.下载地址 URL url = new URL("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1599218101743&di=2b711810ec59e46639bf70c16b7c357a&imgtype=0&src=http%3A%2F%2Fimage.codes51.com%2Farticle%2Fimage%2F20170407%2F20170407100716_7758.jpg"); //2.连接到这个资源 HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection(); //3.读取数据 InputStream inputStream = httpURLConnection.getInputStream(); FileOutputStream fileOutputStream = new FileOutputStream("7758.jpg"); byte[] buffer = new byte[1024]; int len; while ((len = inputStream.read(buffer)) != -1) { fileOutputStream.write(buffer,0,len); } //4.关闭流 fileOutputStream.close(); inputStream.close(); httpURLConnection.disconnect(); } }