java实现下载网络图片

package com.gylhaut.picture;

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

public class PictureDownload {
    public static void main(String[] args) {
        String url = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1546100952419&di=4b9466f689800898b761d411c0eed2d2&imgtype=0&src=http%3A%2F%2Fb.hiphotos.baidu.com%2Fzhidao%2Fpic%2Fitem%2F14ce36d3d539b600d3924a1feb50352ac65cb73e.jpg";
        downloadPicture(url);
    }
    //链接url下载图片
    private static void downloadPicture(String urlList) {
        URL url = null;
        int imageNumber = 0;

        try {
            url = new URL(urlList);
            DataInputStream dataInputStream = new DataInputStream(url.openStream());

            String imageName =  "E:/test.jpg";

            FileOutputStream fileOutputStream = new FileOutputStream(new File(imageName));
            ByteArrayOutputStream output = new ByteArrayOutputStream();

            byte[] buffer = new byte[1024];
            int length;

            while ((length = dataInputStream.read(buffer)) > 0) {
                output.write(buffer, 0, length);
            }
            byte[] context=output.toByteArray();
            fileOutputStream.write(output.toByteArray());
            dataInputStream.close();
            fileOutputStream.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
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java实现下载网络图片

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