反应路由器授权

Question

在组件安装之前进行授权检查的最佳做法是什么？

我使用react-router 1.x

这是我的路线

React.render((
  <Router history={History.createHistory()}>
    <Route path="/" component={Dashboard}></Route>
    <Route path="/login" component={LoginForm}></Route>
  </Router>
), document.body);

这是我的仪表板组件:

var Dashboard = React.createClass({
  componentWillMount: function () {
    // I want to check authorization here
    // If the user is not authorized they should be redirected to the login page.
    // What is the right way to perform this check?
  },

  render: function () {
    return (
      <h1>Welcome</h1>
    );
  }
});

Answer 1

针对React路由器v4的更新解决方案

<Route 
  path="/some-path" 
  render={() => !isAuthenticated ?
    <Login/> :
    <Redirect to="/some-path" />
}/>

使路由器达到v3

使用'onEnter'事件并在回调中检查用户是否获得授权:

<Route path="/" component={App} onEnter={someAuthCheck}>  

const someAuthCheck = (nextState, transition) => { ... }

Answer 2

使用react-router 4,您可以访问组件内的Route道具.要重定向用户,您只需将新URL推送到历史记录即可.在您的示例中,代码将是:

var Dashboard = React.createClass({
  componentWillMount: function () {
    const history = this.props.history; // you'll have this available
    // You have your user information, probably from the state
    // We let the user in only if the role is 'admin'
    if (user.role !== 'admin') {
      history.push('/'); // redirects the user to '/'
    }
  },

  render: function () {
    return (
      <h1>Welcome</h1>
    );
  }
});

在文档中,他们通过使用属性而不是使用属性来显示另一种方法.它们定义了一个,当您定义所有路由时,它会使代码非常明确.rendercomponentPrivateRoute