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express file upload sample
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>upload file</title> | |
| </head> | |
| <body> | |
| <input id="filename" type="text" placeholder="filename"/> | |
| <input id="filedata" type="file"/> | |
| <button id="upload">アップロード</button> | |
| <script src="https://code.jquery.com/jquery-3.2.1.min.js"></script> | |
| <script> | |
| $(() => { | |
| $("#upload").click(() => { | |
| const fd = new FormData(); | |
| const filename = $("#filename").val(); | |
| const filedata = $("#filedata")[0].files[0]; | |
| fd.append("filename", filename); | |
| fd.append("filedata", filedata); | |
| $.ajax({ | |
| type : "POST", | |
| url : "/upload", | |
| processData: false, | |
| contentType : false, | |
| data : fd, | |
| dataType : "json", | |
| success : console.log, | |
| error : console.error | |
| }); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| const express = require('express'); | |
| const router = express.Router(); | |
| const fs = require("fs-extra"); | |
| const multiparty = require("multiparty"); | |
| router.get('/', (req, res, next) => { | |
| res.sendFile("index.html", { | |
| root : __dirname + "../public" | |
| }); | |
| }); | |
| router.post('/upload', (req, res, next) => { | |
| const form = new multiparty.Form(); | |
| form.parse(req, function(err, fields, files) { | |
| const userFilePath = "./path/to/filedir/" + fields.filename[0]; | |
| const tmpFilePath = files.filedata[0].path; | |
| fs.rename(tmpFilePath, userFilePath, (err) => { | |
| if(err){ | |
| res.status(500).json({ message : "fail" }); | |
| }else{ | |
| res.json({ message : "ok" }); | |
| } | |
| }); | |
| }); | |
| }); | |
| module.exports = router; |
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