404+ Express (端点404)

Question

我在客户机上得到一个404错误。也许有人知道问题出在哪里？我发现了您需要删除node_modules和包-锁、do npm i的信息，一切都会正常工作。但这对我没用

服务器：index.js

const express = require('express');
const app = express();
const users = require('./routes/users.js')

app.use('/api/users', users);

app.listen(1234);

console.log('Server has been started on port 1234...')

users.js

const express = require('express');
const router = express.Router();

router.get('/', (req, res) => {

  res.json([
    {
      username: 'User 1',
      age: 26
    },
    {
      username: 'User 2',
      age: 22
    }
  ])

});

module.exports = router;

客户端组件

componentDidMount() {
    fetch('/api/users')
        .then(res => res.json())
        .then(users => {
            this.setState({ users: users })
        });
}

package.json

"proxy": "http://localhost:1234"

Answer 1

如果你把这个放到湿包里，它就能用了。

devServer: {
    historyApiFallback: true,
    proxy: {
        '/': {
            target: 'http://localhost:1234'
        },
    }
},