java根据图片的url地址下载图片到本地

package com.daojia.haobo.aicircle.util;
import sun.misc.BASE64Encoder;

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;

    public class DownloadPicFromUrl {
        public static void main(String[] args) {
            String url = "http://XXXXXX33ayDdEs%3D";
            String path="c:/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, 0, length);
                }
                BASE64Encoder encoder = new BASE64Encoder();
                String encode = encoder.encode(buffer);//返回Base64编码过的字节数组字符串
                System.out.println(encode);
                fileOutputStream.write(output.toByteArray());
                dataInputStream.close();
                fileOutputStream.close();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }