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问Multer:意外字段
EN

Stack Overflow用户

提问于 2021-04-06 21:50:46

回答 2查看 227关注 0票数 0

我正在尝试创建一个api来为我的项目接受图像，但由于某种原因，它给出了以下错误

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <title>Error</title>
</head>

<body>
    <pre>MulterError: Unexpected field<br> &nbsp; &nbsp;at wrappedFileFilter (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\multer\index.js:40:19)<br> &nbsp; &nbsp;at Busboy.&lt;anonymous&gt; (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\multer\lib\make-middleware.js:114:7)<br> &nbsp; &nbsp;at Busboy.emit (events.js:310:20)<br> &nbsp; &nbsp;at Busboy.emit (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\busboy\lib\main.js:38:33)<br> &nbsp; &nbsp;at PartStream.&lt;anonymous&gt; (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\busboy\lib\types\multipart.js:213:13)<br> &nbsp; &nbsp;at PartStream.emit (events.js:310:20)<br> &nbsp; &nbsp;at HeaderParser.&lt;anonymous&gt; (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\Dicer.js:51:16)<br> &nbsp; &nbsp;at HeaderParser.emit (events.js:310:20)<br> &nbsp; &nbsp;at HeaderParser._finish (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\HeaderParser.js:68:8)<br> &nbsp; &nbsp;at SBMH.&lt;anonymous&gt; (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\HeaderParser.js:40:12)<br> &nbsp; &nbsp;at SBMH.emit (events.js:310:20)<br> &nbsp; &nbsp;at SBMH._sbmh_feed (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\streamsearch\lib\sbmh.js:95:16)<br> &nbsp; &nbsp;at SBMH.push (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\streamsearch\lib\sbmh.js:56:14)<br> &nbsp; &nbsp;at HeaderParser.push (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\HeaderParser.js:46:19)<br> &nbsp; &nbsp;at Dicer._oninfo (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\Dicer.js:197:25)<br> &nbsp; &nbsp;at SBMH.&lt;anonymous&gt; (C:\Users\Usuário\Desktop\dicionario\backend\node_modules\dicer\lib\Dicer.js:127:10)</pre>
</body>

</html>

以下是我的代码

const multer = require('multer')
const uploads = multer({dest: 'uploads/'})


router.post('/', uploads.single('ImagemSinal') ,async (req, res) => {
    console.log(req.file)
    try{
        const { title, description, tasks } = req.body

        const project =  await Project.create({title, description, user: req.userId });

       await Promise.all(tasks.map( async task => {
            const projectTask = new Task({...task, project: project._id})

           await projectTask.save()

           project.tasks.push(projectTask)
        }))

        await project.save()
        return res.send({ project })
    } catch(err) {
        console.log(err)
        return res.status(400).send({error: 'Error creating new project'})
        
       
    }
})

这就是我如何在邮递员中做这个请求的。

node.js

mongodb

multer

回答 2

Stack Overflow用户

回答已采纳

发布于 2021-04-06 22:15:13

当您从Postman发送图像时，您必须键入ImagemSinal作为图像的keyValue，因为您是在服务器端指定的。

您还可以在服务器端更改代码，您可以输入uploads.any()来代替uploads.single('ImagemSinal')。

票数 1

Stack Overflow用户

发布于 2021-09-22 17:38:39

只需键入file作为键值，现在应该可以工作了。对我很管用

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/66969978

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