Question

不幸的是，当我通过body: {}（配置表格POST标头Insomnia）向我的api Form URL Encoded到我的api时，我在请求对象中得到一个空的Content-Type: application/x-www-form-urlencoded ：

这是我的快递代码：

const express = require('express');
const app = express();
app.use(express.json());

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

    test = req.body.test;
    console.log(req);
    console.log(test);
    res.send("Hallo");
});

const port = 4000;
app.listen(port, () => console.log(`Listening on port ${port}...`));

我在做什么错？如果将Insomnia设置为JSON，标题Content-Type: application/json，我还需要在代码中进行哪些更改？

Answer 1

要访问请求正文，请使用body-parser middleware，并以JSON格式发送响应，请使用res.json()

https://www.npmjs.com/package/body-parser

var express = require('express')
var bodyParser = require('body-parser')

var app = express()

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }))

// parse application/json
app.use(bodyParser.json())

app.post('/api/', function(req, res) {
    test = req.body.test;
    console.log(req);
    console.log(test);
    res.json({"message":"Hallo"}); //update here
});

const port = 4000;
app.listen(port, () => console.log(`Listening on port ${port}...`));

Answer 2

在Express v4.16.0及更高版本中可用：

app.use(express.urlencoded({ extended: false }));
app.use(express.json());

POST与Node.js Express

2 个答案: