java基础总结(八十五)--下载https服务上的图片

た入场券 2022-08-29 06:13 181阅读 0赞

java version "1.8.0\_172"

package com.lisx.controller;
    
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.InputStream;
    import java.net.URL;
    import java.net.URLConnection;
    
    /**
     * 李双喜下载https图片
     */
    public class DownLoadPic {
        public static void main(String[] args) {
            // 图片地址
            String strUrl = "https://img-blog.csdnimg.cn/8e1a4b188ba64d76b205ff389aa6ef4e.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NzZG5uZXdz,size_16,color_FFFFFF,t_70#pic_center";
            downloadImg(strUrl, "D:\\李双喜", "1.png");
            String strut2 ="https://bkimg.cdn.bcebos.com/pic/b64543a98226cffcdb72b311bb014a90f603ea3d?x-bce-process=image/watermark,image_d2F0ZXIvYmFpa2U5Mg==,g_7,xp_5,yp_5/format,f_auto";
            downloadImg(strut2, "D:\\李双喜", "2.jpg");
        }
    
        /**
         * 抓取网上的图片x
         *
         */
        public static void downloadImg(String imgSrc, String filePath, String fileName) {
            try {
                URL url = new URL(imgSrc);
                URLConnection conn = url.openConnection();
                conn.setConnectTimeout(3 * 1000);
                conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
                InputStream str = conn.getInputStream();
                byte[] bs = new byte[1024];
                int len = 0;
                File saveDir = new File(filePath);
                if (!saveDir.exists()) {
                    saveDir.mkdir();
                }
                File file = new File(saveDir + File.separator + fileName);
                FileOutputStream out = new FileOutputStream(file);
                while ((len = str.read(bs)) != -1) {
                    out.write(bs, 0, len);
                }
                out.flush();
                out.close();
                str.close();
                System.out.println("下载成功");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }