var fs = require('fs');

var multer  = require('multer');

var upload = multer({dest: 'upload_tmp/'});

router.post('/upload', upload.any(), function(req, res, next) {

     console.log(req.files[0]);  // 上传的文件信息

     var des_file = "./" + req.files[0].originalname;

     fs.readFile( req.files[0].path, function (err, data) {

         fs.writeFile(des_file, data, function (err) {

             if( err ){

                 console.log( err );

             }else{

                 response = {

                     message:'File uploaded successfully',

                     filename:req.files[0].originalname

                 };

                 console.log( response );

                 res.end( JSON.stringify( response ) );

             }

         });

     });

 });