JAVA根据图片的URL下载到本地

package demo; import java.io.ByteArrayOutputStream;import java.io.DataInputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.net.MalformedURLException;import java.net.URL; public class DownloadPicFromURL { public static void main(String[] args) { String url = "http://192.168.1.158/estun_cs/banner_img/head_pic.jpg"; String path="d:/test/pic.jpg"; downloadPicture(url,path); } //链接url下载图片 private static void downloadPicture(String urlList,String path) { URL url = null; try { url = new URL(urlList); DataInputStream dataInputStream = new DataInputStream(url.openStream()); FileOutputStream fileOutputStream = new FileOutputStream(new File(path)); ByteArrayOutputStream output = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int length; while ((length = dataInputStream.read(buffer)) > 0) { output.write(buffer,length); } fileOutputStream.write(output.toByteArray()); dataInputStream.close(); fileOutputStream.close(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }}