您应该使用history v4 lib。

这里的例子

history.listen((location, action) => {
  console.log(`The current URL is ${location.pathname}${location.search}${location.hash}`)
  console.log(`The last navigation action was ${action}`)
})

对于React路由器v6和React钩子， 你需要使用useLocation而不是useHistory，因为它已被弃用

import { useLocation } from 'react-router-dom'
import { useEffect } from 'react'

export default function Component() {

const history = useLocation();

   useEffect(() => {
    console.log('> Router', history.pathname)      
}, [history.pathname]);
}

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

您应该使用history v4 lib。

这里的例子

history.listen((location, action) => {
  console.log(`The current URL is ${location.pathname}${location.search}${location.hash}`)
  console.log(`The last navigation action was ${action}`)
})

对于react Hooks，我使用useEffect

import React from 'react'
const history = useHistory()
const queryString = require('query-string')
const parsed = queryString.parse(location.search)
const [search, setSearch] = useState(parsed.search ? parsed.search : '')

useEffect(() => {
  const parsedSearch = parsed.search ? parsed.search : ''
  if (parsedSearch !== search) {
    // do some action! The route Changed!
  }
}, [location.search])

在这个例子中，当路由改变时，我向上滚动:

import React from 'react'
import { useLocation } from 'react-router-dom'

const ScrollToTop = () => {
  const location = useLocation()

  React.useEffect(() => {
    window.scrollTo(0, 0)
  }, [location.key])

  return null
}

export default ScrollToTop