router.prefix('/upload');

//文件上传  
//配置  
var storage = multer.diskStorage({  
  //文件保存路径  
  destination: function (req, file, cb) {  
    cb(null, __dirname+ '../upload/')  
  },  
  //修改文件名称  
  filename: function (req, file, cb) {  
    var fileFormat = (file.originalname).split(".");  
    cb(null,Date.now() + "." + fileFormat[fileFormat.length - 1]);  
  }  
})  
//加载配置  
var upload = multer({ storage: storage });  
//路由  
router.post('/upLoadDoc', upload.single('file'), async (ctx, next) => {  
  console.log(ctx.request)
  ctx.body = {  
    filename: ctx.request.body.files.file.name//返回文件名  
  }