# 文件上传 Post with form-data 主要目的是为了上传 koa-v1 要是用 koa-multer-v0.0.2 对应的 multer < 1，所以本处需要指定版本安装 ```shell $ npm install --save koa-multer@0.0.2 ``` Usage ```javascript var app = require('koa')() , koa = require('koa-router')() , logger = require('koa-logger') , json = require('koa-json') , views = require('koa-views') , onerror = require('koa-onerror'); var multer = require('koa-multer'); app.use(multer({ dest: './uploads/'})); ``` You can access the fields and files in the request object: ```javascript router.post('/post/formdata', function *(next) { console.dir(this.req.body) console.dir(this.req.files) this.body = 'this a users response!'; }); ``` 重要提示： Multer will not process any form which is not multipart/form-data [see more](https://github.com/koa-modules/multer) 测试 ```shell $ npm test ``` 使用Postman测试