我在使用Express'req.body(在此应用程序中使用MongoDB(时遇到问题
这并不是routes的错误——GET方法可以很好地工作,如果我没有Validation要求,POST方法也可以工作。这个问题发生在我使用POST路由的req.body时。我已经做了几个小时了。。请帮助
这是我的服务器.js
const express = require('express');
const app = express()
const mongoose = require('mongoose');
const http = require('http').createServer(app);
const io = require('socket.io')(http);
const groups = require('./routes/api/groups')
// Middleware
app.use(express.urlencoded({extended: true}));
// DB config
const dbURL = require("./config/keys").mongoURI;
// Connect to mongoDB
mongoose.connect(dbURL, {useNewUrlParser: true, useUnifiedTopology: true})
.then(console.log("MongoDB connected..."))
.catch(err => console.log(err))
// Use Routes ** THIS LEADS TO THE SECOND CODE **
app.use('/api/groups', groups)
const port = process.env.PORT || 3500
app.listen(port, ()=> console.log(`Server is listening at port ${port}`))
group.js处理所有群组路由
const express = require('express');
const router = express.Router();
const Group = require('../../models/Group')
router.get('/', (req, res) => {
Group.find()
// sort by date descending
.sort({ date: -1})
.then(groups => res.json(groups))
})
router.post('/', (req, res) => {
console.log(req.body)
const newGroup = new Group({
name: req.body.name,
})
newGroup.save( err => {
if (err) {
console.error(err)
} else {
console.log("saved!")
}
})
})
组模式
const mongoose = require("mongoose");
let groupSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
},{
timestamps: true
})
module.exports = mongoose.model("group", groupSchema)
我用Postman发送POST请求:
{
"name": "Hello!"
}
我在控制台上收到这个:来自console.log(req.body(-router.post:中的第二组代码
{ '{nt"name": "Hello!"n}': '' }
我认为express'中间件(现在包括主体解析器(应该删除空白。验证错误是由于它无法访问"name"密钥。
我感谢你的时间和帮助!
正确附加主体解析器:
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: true})); // content-type: application/x-www-form-urlencoded
app.use(bodyParser.json()); // content-type: application/json