//客戶端
index.js

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom'
import registerServiceWorker from './registerServiceWorker';

ReactDOM.render(<div><Router><Route path='/supplies/:client_id' component={App}></Route></Router></div>, document.getElementById('root'));

App.js

class App extends Component {
  state = {users: [],
          products:[]};
  
  steps = ['紡紗','織布','后整','檢查入庫(kù)','發(fā)貨'];

  componentDidMount() {
    console.log(this.props.params.client_id);  //不對(duì)這里
    fetch('/supplies/320001')
      .then(res => res.json())
      .then(products => this.setState({ products }));
  }

訪問(wèn)
http://localhost:3000/supplies/320001
http://localhost:3000/supplies/420001

如何獲取320001 或 420001