React调用node.js函数时出现400错误

Question

我试图使用axios从react front调用一些寄存器到我的node.js back，但我得到了一个400错误，说：

http://localhost:9000/user/register400(错误请求(

这是我的代码：

import React, { useState } from 'react'
import TutorialDataService from "../../services/TutorialService";
import { Link } from 'react-router-dom';

const Register = () => {
const user = {
name: '',
email: '',
password: '',
confirmPassword: '',
}
const [userData, setUserData] = useState(user);
const [error, setError] = useState('');
const [submitted, setSubmitted] = useState(false);
const handleChange = e => {
setUserData({ ...userData, [e.target.id]: e.target.value })
}
const saveUser = e => {
e.preventDefault();
const  data = {
name: user.name,
email: user.email,
password: user.password
};
TutorialDataService.signUp(data)
.then(response => {
setUserData({
name: response.data.name,
email: response.data.email,
password: response.data.password
})
setSubmitted(true);
console.log(userData)
})
.catch(error => {
setError(error);
console.log(error);
})
}
const newUser = () => {
setUserData(user);
setSubmitted(false);
}
const { name, email, password, confirmPassword } = userData;
const btn = name === '' || email === '' || password === '' || password !== confirmPassword
? <button disabled>Inscription</button> : <button>Inscription</button>
// gestion erreurs
const errorMsg = error !== '' && <span>{error.message}</span>
return (
<div className="signUpLoginBox">
<div className="slContainer">
<div className="">
<div className="formContent">
<form onSubmit={saveUser}>
{errorMsg}
<h2>Inscription</h2>
<div className="inputBox">
<input type="text" id="name" onChange={handleChange} value={name} autoComplete="off"  />
<label htmlFor="pseudo">Name</label>
</div>
<div className="inputBox">
<input type="email" id="email" onChange={handleChange} value={email} autoComplete="off" required />
<label htmlFor="email">Email</label>
</div>
<div className="inputBox">
<input type="password" id="password" onChange={handleChange} value={password} autoComplete="off" required />
<label htmlFor="password">Mot de passe</label>
</div>
<div className="inputBox">
<input type="password" id="confirmPassword" onChange={handleChange} value={confirmPassword} autoComplete="off" required />
<label htmlFor="confirmPassword">Confirmez le mot de passe</label>
</div>
{btn}
</form>
<div className="linkContainer">
<Link className="simpleLink" to="/login">Déjà inscrit? Connectez-vous </Link>
</div>
</div>
</div>
</div>
</div>
);
};
export default Register

我的身份验证文件node.js:

const router = require('express').Router();
const bcrypt = require('bcryptjs');
const jwt = require('jsonwebtoken');
const User = require('../models/User');
const { registerValidation, loginValidation } = require('./validation');

router.post('/register', async (req, res) => {
//LETS VALIDATE THE DATA BEFORE WE A USER
const {error} = registerValidation(req.body);
if (error) return res.status(400).send(error.details[0].message);
//Checking if the user is already in the database
const emailExist = await User.findOne({email: req.body.email})
if(emailExist) return res.status(400).send('Email already exists');
//Hash passwords
const salt = await bcrypt.genSalt(10);
const hashedPassword = await bcrypt.hash(req.body.password, salt);
//Create a new user
const user = new User({
name: req.body.name,
email: req.body.email,
password: hashedPassword
});
try{
const savedUser = await user.save();
res.send( {user: user._id});
}catch(err){
res.status(400).send(err);
}
});

module.exports = router;

然后在我的app.js(节点(中是这样的：

const authRoute = require('./routes/auth');
app.use('/user', authRoute);

Validation.js(节点(

const Joi = require('@hapi/joi');
//Register Validation
const registerValidation = (data) => {
const schema = Joi.object({
name: Joi.string()
.min(6)
.required(),
email: Joi.string()
.min(6)
.required()
.email(),
password: Joi.string()
.min(6)
.required()
});
return schema.validate(data);
};

http-common.js:

import axios from "axios"
export default axios.create({
baseURL: "http://localhost:9000",
headers: {
"Content-type": "application/json"
}
});

service.js:

import http from "../http-common";
const signUp = data => {
return http.post('/user/register', data);
};

你看到问题了吗？

Answer 1

在前端，您从"/user/register"获取，但在节点中的auth文件中的post只是"/register"。试着让它们匹配。

Answer 2

您必须放置router.get而不是router.post