我使用withRouter来获取位置道具。当组件因为一个新的路由而更新时，我检查值是否发生了变化:

@withRouter
class App extends React.Component {

  static propTypes = {
    location: React.PropTypes.object.isRequired
  }

  // ...

  componentDidUpdate(prevProps) {
    if (this.props.location !== prevProps.location) {
      this.onRouteChanged();
    }
  }

  onRouteChanged() {
    console.log("ROUTE CHANGED");
  }

  // ...
  render(){
    return <Switch>
        <Route path="/" exact component={HomePage} />
        <Route path="/checkout" component={CheckoutPage} />
        <Route path="/success" component={SuccessPage} />
        // ...
        <Route component={NotFound} />
      </Switch>
  }
}

withRouter,历史。listen，和useEffect (React Hooks)一起工作得很好:

import React, { useEffect } from 'react'
import { withRouter } from 'react-router-dom'

const Component = ({ history }) => {
    useEffect(() => history.listen(() => {
        // do something on route change
        // for my example, close a drawer
    }), [])

    //...
}

export default withRouter(Component)

侦听器回调将在路由更改时触发，并返回历史记录。listen是一个关闭处理程序，可以很好地与useEffect一起使用。

import { useHistory } from 'react-router-dom';

const Scroll = () => {
  const history = useHistory();

  useEffect(() => {
    window.scrollTo(0, 0);
  }, [history.location.pathname]);

  return null;
}

使用useEffect钩子，可以在不添加侦听器的情况下检测路由更改。

import React, { useEffect }           from 'react';
import { Switch, Route, withRouter }  from 'react-router-dom';
import Main                           from './Main';
import Blog                           from './Blog';


const App  = ({history}) => {

    useEffect( () => {

        // When route changes, history.location.pathname changes as well
        // And the code will execute after this line

    }, [history.location.pathname]);

    return (<Switch>
              <Route exact path = '/'     component = {Main}/>
              <Route exact path = '/blog' component = {Blog}/>
            </Switch>);

}

export default withRouter(App);

import React, { useEffect } from 'react';
import { useLocation } from 'react-router';

function MyApp() {

  const location = useLocation();

  useEffect(() => {
      console.log('route has been changed');
      ...your code
  },[location.pathname]);

}

用钩子

我使用withRouter来获取位置道具。当组件因为一个新的路由而更新时，我检查值是否发生了变化:

@withRouter
class App extends React.Component {

  static propTypes = {
    location: React.PropTypes.object.isRequired
  }

  // ...

  componentDidUpdate(prevProps) {
    if (this.props.location !== prevProps.location) {
      this.onRouteChanged();
    }
  }

  onRouteChanged() {
    console.log("ROUTE CHANGED");
  }

  // ...
  render(){
    return <Switch>
        <Route path="/" exact component={HomePage} />
        <Route path="/checkout" component={CheckoutPage} />
        <Route path="/success" component={SuccessPage} />
        // ...
        <Route component={NotFound} />
      </Switch>
  }
}