如何在Nodejs應用程序中解決'無法POST/file_upload'？

Question

我在的NodeJS編碼幼稚，不能進一步解決的問題，這是文件上傳程序： 這裏是我的代碼：

var express=require('express'); 
    var app=express(); 
    var fs=require("fs"); 

    var bodyParser=require('body-parser'); 
    var multer=require('multer'); 
    var jsonParser=bodyParser.json(); 

    app.use(express.static('public')) 
    app.use(bodyParser.urlencoded({extended:false})); 
    var upload=multer({dest:'/tmp/'}); 
    app.get('/index.htm',function(req,res){ 
    res.sendFile(__dirname+"/"+"index.htm"); 
    }) 
    app.post('/file_upload', function (req, res) { 
    console.log(req.files.file.name); 
    console.log(req.files.file.path); 
    console.log(req.files.file.type); 
    var file = __dirname + "/" + req.files.file.name; 


    fs.readFile(req.files.file.path,function(err,data){ 
    fs.writeFile(file,data,function(err){ 
    if(err){ 
    console.log(err);} 
    else{ 
    response={message:'File Upload Successfully', 
    filename:req.files.file.name 
    }; 
    } 
    console.log(response); 
    res.end(JSON.stringify(response)); 
    }); 
    }); 
    }) 


    var server=app.listen(8081,function(){ 
    var host=server.address().address 
    var port=server.address().port 
    console.log("Example app listening at http://%s:%s",host,port) 
    }) 

但是應用程序正在運行，但它顯示「無法POST/file_upload，PLZ告訴該怎麼辦？

Answer 1

試試這個

app.post('/file_upload', function (req, res) { 

     var storage = multer.diskStorage({ 

      destination: function (req, file, callback) { 
       callback(null, '/tmp/'); 
      }, 
      filename: function (req, file, callback) { 
       callback(null, Date.now()+path.extname(file.originalname)); 
      } 
     }); 

     var upload = multer({storage: storage}).single('file'); 

     upload(req, res, function (err) { 
      if (err) { 
       console.log(err); 
      } 
      else { 
       res.status(200); 
       res.json({ 

        message:'File Upload Successfully' 

       }); 
      } 


     }); 

    }