无法发布错误 - node.js - 使用 multer 上传图片

Question

index.html 通过单击主页“localhost:9000/”中名为“spons”的链接到达浏览器，并且 url 更改为“localhost:9000/spons”，现在当我提交表单时，它会运行到 url "localhost:9000/spons/uploads" 并给出 "cannot POST /spons/uploads" ，图像文件夹与 server.js 文件位于同一目录中，你能帮我解决这个问题吗？

这是 index.html 文件

<form name='uploadform' enctype='multipart/form-data' method='post' action='/spons/uploads'>
<input name='imageupload' type='file'>
<input type="submit" value="Upload Image" name="submit">
</form>

这是 server.js 文件

var express = require('express');
var multer= require('multer');

var upload= multer({dest:'/images'}).single('imageupload');


var router = express.Router();
router.post('/spons/uploads', upload, function(req,res){
  res.end('uploaded');
   }
 );

express().listen(9000);

Answer 1

您收到了cannot POST /spons/uploads，因为您没有将router 附加到应用程序。

var express = require('express');
var app = express();
var multer= require('multer');

var upload= multer({dest:'/images'}).single('imageupload');

var router = express.Router();
router.post('/spons/uploads', upload, function(req,res){
   res.end('uploaded');
});

app.use('/',router); // this line is the key. 

app.listen(9000);

希望，它有帮助。

Answer 2

您甚至不需要显式路由器，请查看下面的示例

var express = require('express');
var app = express();
var multer= require('multer');

var upload= multer({dest:'/images'}).single('imageupload');

app.post('/spons/uploads', upload, function(req,res){
   res.end('uploaded');
});

app.listen(9000);