Node Express - PayloadTooLargeError：请求实体太大

Question

当我尝试上传大于 1M 的文件（.docx、.xlsx 等）时出现以下错误

PayloadTooLargeError: request entity too large
at readStream (C:\Users\GoTor\Documents\Node\BackEnd\node_modules\raw-body\index.js:155:17)
at getRawBody (C:\Users\GoTor\Documents\Node\BackEnd\node_modules\raw-body\index.js:108:12)
at read (C:\Users\GoTor\Documents\Node\BackEnd\node_modules\body-parser\lib\read.js:77:3)
    ...

代码如下

...

var mongoose = require('mongoose')
var express = require("express");
var app = require('./app');

app.use(bodyParser.json({ limit: "50mb" }))
app.use(bodyParser.urlencoded({ limit: "50mb", extended: true, parameterLimit: 50000 }))

//3.
var user_mng = 'user';
var pass_mng = 'pass';

//server
var port = process.env.PORT || 9090;
mongoose.Promise = global.Promise;
mongoose.connect(`mongodb://hostname:0101/dbname`, 
    {
        auth: { "authSource": "user" },
        user: user_mng,
        pass: pass_mng,
        useMongoClient: true})
    .then(()=>{
        const server = app.listen(port, () => {
            const host_srv = server.address().address;
            const port_srv = server.address().port;
        });
    })
    .catch(err=> console.log(err));

package.json:

"dependencies": {
...
"body-parser": "^1.19.0",
"express": "^4.17.1",
...
}

所以我尝试了一些解决方案，但这些对我不起作用。

这个：

app.use(bodyParser.json({limit: '50mb'}));
app.use(bodyParser.urlencoded({limit: '50mb', extended: true}));

这个

app.use(bodyParser.json({limit: "50mb"}));
app.use(bodyParser.urlencoded({limit: "50mb", extended: true, parameterLimit:50000}));

还有这个：

app.use(bodyParser.json({limit:1024*1024*20, type:'application/json'}));
app.use(bodyParser.urlencoded({extended:true,limit:1024*1024*20,type:'application/x-www-form-urlencoding' }));

Answer 1

将您的 2 行 app.use 代码替换为：

app.use(express.json({limit: '25mb'}));
app.use(express.urlencoded({limit: '25mb', extended: true}));