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Node.js實(shí)現(xiàn)批量下載圖片簡單操作示例

更新時間：2020年01月18日 12:31:35 作者：林飛的夢囈

這篇文章主要介紹了Node.js實(shí)現(xiàn)批量下載圖片簡單操作,結(jié)合實(shí)例形式分析了node.js批量下載圖片的具體步驟與相關(guān)實(shí)現(xiàn)技巧,需要的朋友可以參考下

本文實(shí)例講述了Node.js實(shí)現(xiàn)批量下載圖片簡單操作。分享給大家供大家參考，具體如下：

使用Node.js批量下載圖片

首先要獲取到圖片鏈接：

const img = [
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400506629423.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400540139692.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400540118251.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400540069242.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400681111127.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400703641344.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400854321042.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400847773096.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400859178000.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400865596453.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400902911909.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400953029599.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400989455804.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401005976517.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218400968714979.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401035049758.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401049432628.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401077574176.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401130741871.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401189588504.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401178924270.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401236159469.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401233410806.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401271226281.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401296600908.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401331496769.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401294723014.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401355737956.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401375565373.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401430489282.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401429130694.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401443905011.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401494231215.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401470554382.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401544523253.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401585803008.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401632787055.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401681076773.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401666198563.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401687089797.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401796465344.jpg",
  "http://yw-yx.oss-cn-hangzhou.aliyuncs.com/ywwl-jylesson/2019/08/52218401847533545.jpg"
];

批量下載圖片：

var fs = require('fs');
var request = require("request");
img.forEach(src => {
  var writeStream = fs.createWriteStream(src.split('/2019/08/')[1]);
  var readStream = request(src)
  readStream.pipe(writeStream);
  readStream.on('end', function() {
    console.log('文件下載成功');
  });
  readStream.on('error', function() {
    console.log(1);
    // console.log("錯誤信息:" + err)
  })
  writeStream.on("finish", function() {
    console.log("文件寫入成功");
    writeStream.end();
  });
});

希望本文所述對大家node.js程序設(shè)計(jì)有所幫助。

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