//客戶端index.jsimportReactfrom'react';importReactDOMfrom'react-dom';import'./index.css';importAppfrom'./App';import{BrowserRouterasRouter,Route,Switch}from'react-router-dom'importregisterServiceWorkerfrom'./registerServiceWorker';ReactDOM.render(,document.getElementById('root'));App.jsclassAppextendsComponent{state={users:[],products:[]};steps=['紡紗','織布','后整','檢查入庫','發貨'];componentDidMount(){console.log(this.props.params.client_id);//不對這里fetch('/supplies/320001').then(res=>res.json()).then(products=>this.setState({products}));}訪問http://localhost:3000/supplies/320001http://localhost:3000/supplies/420001如何獲取320001或420001