我有一个用node / express创建的服务器,该服务器从url返回这些数据:http://localhost:3001/api/users
[{"id":1,"username":"frank"},{"id":2,"username":"lowi"}]
这是服务器代码:
const express = require('express');
const app = express();
const proxy = require('http-proxy-middleware');
app.use(proxy('/api', { target: 'http://localhost:3001/' }));
app.get('/api/users', (req, res) => {
res.json([
{
id: 1,
username: 'frank'
},
{
id: 2,
username: 'lowi'
}
])
});
app.get('/api/cars', (req, res) => {
res.json([
{
id: 1,
brand: 'bmw'
},
{
id: 2,
brand: 'nissan'
}
])
});
const port = process.env.port || 3001;
app.listen(port);
但是当我尝试使用axios从客户端访问这些数据时,我会出错
获取http://localhost:3000/api/users 404(未找到)
这是客户端代码:
import React, { Component } from 'react';
import axios from 'axios';
import logo from './logo.svg';
import './App.css';
class App extends Component {
componentWillMount() {
axios.get('/api/users')
.then(res => {
console.log(res.data);
});
}
render() {
return (
<div className="App">
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<p>
Edit <code>src/App.js</code> and save to reload.
</p>
<a
className="App-link"
href="https://reactjs.org"
target="_blank"
rel="noopener noreferrer"
>
Learn React
</a>
</header>
</div>
);
}
}
export default App;
答案 0 :(得分:1)
找到了解决方案。根据文档here
我必须在客户端应用程序setupProxy.js
文件夹下的/src
文件中设置代理!!!
const proxy = require('http-proxy-middleware');
module.exports = function(app) {
app.use(proxy('/api', { target: 'http://localhost:3001' }));
};
哭泣...