Node.js实现批量下载图片简单操作示例

网络编程 2024/12/24 佚名

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本文实例讲述了Node.js实现批量下载图片简单操作。分享给大家供大家参考，具体如下：

使用Node.js批量下载图片

首先要获取到图片链接：

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"
];

批量下载图片：

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('文件下载成功');
  });
  readStream.on('error', function() {
    console.log(1);
    // console.log("错误信息:" + err)
  })
  writeStream.on("finish", function() {
    console.log("文件写入成功");
    writeStream.end();
  });
});

希望本文所述对大家node.js程序设计有所帮助。

Node.js,批量下载图片

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