NodeJS使用七牛云存储上传文件的方法

npm install --save qiniu formidable

let qiniu = require('qiniu'),  formidable = require('formidable'),  express = require('express'),  router = express.Router();

router.post('/qiniu', function (req, res, next) { let bucket = 'myblog',  key = '',  form = formidable.IncomingForm(),  token, putPolicy; form.uploadDir = path.join(__dirname, '../../', 'public/img/upload'); form.keepExtensions = true form.parse(req, function (err, fields, files) {  if (err) {   console.log(err);  }  key = files.mypic.path.split(path.sep).pop();  putPolicy = new qiniu.rs.PutPolicy(bucket + ':' + key)  //设置回调  // putPolicy.callbackUrl = 'http://localhost:81/test/callback'  // putPolicy.callbackBody = 'filename=$(fname)&filesize=$(fsize)'  token = putPolicy.token()  console.log('token', token)  let extra = new qiniu.io.PutExtra()  qiniu.io.putFile(token, key, files.mypic.path, extra, function (err, ret) {   if (err) {    console.log(err)   }   console.log('ret', ret);   res.json({    token: token,    ret: ret,    files: files,    fields: fields   })  }) })})

router.get('/download/:key', function (req, res, next) { let url = 'http://xxxx.bkt.clouddn.com/' + req.params.key,  policy = new qiniu.rs.GetPolicy(); console.log(url); res.json({url: policy.makeRequest(url)})})

router.get('/info/:key', function (req, res, next) { let bucket = 'myblog',  key = req.params.key,  client = new qiniu.rs.Client(); client.stat(bucket, key, (err, ret) => {  if (err) {   console.log(err);  }  res.json(ret); })})