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react-router 子页面之间的数据传递

子页面传递该如何通讯?

import { HashRouter as Router, Route,  Link } from 'react-router-dom'

class Index extends Component {
  render() {
    return (
      <Router basename="/index">
        <div className="index-content" >
          <Link to="/library">library</Link>
          <Link to="/passbook">passbook</Link>
          <Link to="/login">login</Link>
          
          <br/>
          
          <Route path="/library" component={Library}/>
          <Route exact path="/passbook" component={Passbook}/>
          <Route path="/login" component={Login}/>
        </div>
      </Router>
    )
  }
}

export default Index;

1.login页面(#/index/login)使用this.state.isLogin标识登陆状态,进行登陆后this.state.isLogin变为true

2.这时候我切过去passbook页面(#/index/passbook)需要login页面(#/index/login)的isLogin来进行判断该渲染什么UI组件,请问一下这里怎样才能把login页面的isLogin传过去passbook页面呢?


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1 Answer

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by (71.8m points)

react-router传递参数无非通过url里面的动态匹配或者query来进行传递,这个文档中都很清楚。

但在这种登录态的场景中,更好的做法不是通过cookie来进行登录态的确定,从而使域名下的任何一个网页都能知道已经登录,而不需要像这样传递state


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