结论:HashRouter不支持location.state
文档:ReactRouter v5
从文档可看到history.push()
方法支持2个参数:path, [state]
state即是location.state
,常用于隐式地传递状态参数
但文档未提的是,仅适用于BrowserRouter,HashRouter下传入后无效,通过location.state
取不到值。
个人场景:微前端适配两种路由模式,这条路走不通!!亲测避坑。
Demo:
import React, { useEffect } from 'react';
import { useHistory, useLocation, BrowserRouter, HashRouter } from 'react-router-dom-v5';const ComponentA = () => {const history = useHistory()useEffect(() => {history.push('xxx/ComponentB', { from: 'aaa'})}, [])
}
const ComponentB = () => {const location = useLocation()useEffect(() => {console.log(location.state)// BrowserRouter: { from: 'aaa' }// HashRouter: undefined}, [location])
}// 上层Router
<BrowserRouter><Route path="xxx/ComponentA" component={ComponentA} /><Route path="xxx/ComponentB" component={ComponentB} />
</BrowserRouter><HashRouter><Route path="xxx/ComponentA" component={ComponentA} /><Route path="xxx/ComponentB" component={ComponentB} />
</HashRouter>