具体代码如下所示：

var request=require("request");var fs=require("fs");function download1(url,filename,fn){request(url).pipe(fs.createWriteStream(filename).on("close",function(err,res){if(err){console.log(err);}else{fn&&fn();}}))}function download2(url,filename,fn){request.get({uri:url, encoding:'binary'},function(err,res){if(!err){fs.writeFile(filename,res.body,"binary",function(err,res){if(!err){fn&&fn();}else{console.log(err);}})}})}

ps：下面看下nodejs 下载远程图片的实现代码，具体代码如下所示：

var express = require('express');var request = require('request');var http = require('http');var url = require('url');var fs = require("fs");var router = express.Router();router.get('/', function (req, res, next) { var url = "http://www.valu.cn/images/1.gif"; //request('http://www.valu.cn/images/1.gif').pipe(fs.createWriteStream('./public/upload/downImg/logonew.png')); var req = http.get(url, function (res) { var imgData = ""; res.setEncoding("binary"); //一定要设置response的编码为binary否则会下载下来的图片打不开 res.on("data", function (chunk) { imgData += chunk; }); res.on("end", function () { fs.writeFile("./public/upload/downImg/logonew.png", imgData, "binary", function (err) { if (err) { console.log("保存失败"); } console.log("保存成功"); }); }); res.on("error", function (err) { console.log("请求失败"); }); }); req.on('error', function (err) { console.log("请求失败2" + err.message); }); res.render('index', {title: '首页2'});});module.exports = router;

总结

以上所述是小编给大家介绍的node.js 下载图片的 2 种方式，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！