如何使用 React-Router 根据 URL/路径更新 ReactJS 组件 [英] How to update ReactJS component based on URL / path with React-Router

问题描述

如何在使用 React-Router 时根据 URL/路径更新 ReactJS 组件?

下面的代码有效，但这是正确的方法吗?似乎有很多代码可以进行简单的更新.我希望路由器中有一个有状态的 API 调用来自动处理这种情况.

var MyHomeView = React.createClass({componentDidMount:函数(){this.props.updateHeader();},渲染:函数(){返回 (<div><h2>家</h2>

);}});var MyAboutView = React.createClass({componentDidMount:函数(){this.props.updateHeader();},渲染:函数(){返回 (<div className="my-page-text"><h2>关于</h2>

);}});var MyHeader = React.createClass({混合:[当前路径]，getInitialState: 函数() {返回 {myPath: "关于",课程:ion-ios7-信息"};},更新头:函数(){//类名指的是 www.ionicons.comif (this.getCurrentPath() === "/") {this.setState( {myPath: "about" } );this.setState( {classes: "ion-ios7-information" } );} 别的 {this.setState( {myPath: "/" } );this.setState( {classes: "ion-ios7-rewind" } );}},渲染:函数(){返回 (<链接到={this.state.myPath}><i className={this.state.classes}/></链接>);}});var App = React.createClass({更新头:函数(){this.refs.header.updateHeader();},渲染:函数(){返回 (<div><MyHeader ref="header"/><this.props.activeRouteHandler updateHeader={this.updateHeader}/>

);}});React.renderComponent((<路线><Route path="/" handler={App}><DefaultRoute handler={MyHomeView}/><Route name="about" handler={MyAboutView}/></路线></路线>), document.body);

解决方案

在 react-router 2.0.0 中你可以使用 hashHistory 或 浏览器历史:

browserHistory.listen(function(ev) {console.log('listen', ev.pathname);});<Router history={browserHistory}>{routes}</Router>

How can I update a ReactJS component based on URL / path when using React-Router?

The code below works, but is this the correct way to do this? Seems like a lot of code to make a simple update. I was hoping there would be a stateful API call in the router to automatically take care of this scenario.

var MyHomeView = React.createClass({
   componentDidMount: function() {
        this.props.updateHeader(); 
   },

   render: function() {
      return (
         <div>
            <h2>Home</h2>
         </div>
      );
  } 
}); 


var MyAboutView = React.createClass({
   componentDidMount: function() {
        this.props.updateHeader(); 
   },

  render: function() {
    return (
      <div className="my-page-text">
        <h2>About</h2>
      </div>
    );
  }
});


var MyHeader = React.createClass({
  mixins: [ CurrentPath ],

  getInitialState: function() {
    return {
       myPath: "about",
       classes: "ion-ios7-information"
    };
  },   

   updateHeader: function() {    
      // Classnames refer to www.ionicons.com
     if (this.getCurrentPath() === "/") {
        this.setState( {myPath: "about" } );
        this.setState( {classes: "ion-ios7-information" } );
     } else {
        this.setState( {myPath: "/" } );
        this.setState( {classes: "ion-ios7-rewind" } );
     }      
   }, 

  render: function() {
    return (
       <Link to={this.state.myPath}>
          <i className={this.state.classes} />
       </Link>
    );
  }
});


var App = React.createClass({
   updateHeader: function() {
      this.refs.header.updateHeader();
   },

   render: function() {
      return (
         <div>
            <MyHeader ref="header" />

         <this.props.activeRouteHandler updateHeader={this.updateHeader} />
         </div>
      );
  } 
}); 


React.renderComponent((
  <Routes> 
    <Route path="/" handler={App}>
      <DefaultRoute handler={MyHomeView} />
      <Route name="about" handler={MyAboutView} />
    </Route>
  </Routes>
), document.body);

解决方案

In react-router 2.0.0 you can use the hashHistory or browserHistory:

browserHistory.listen(function(ev) {
  console.log('listen', ev.pathname);
});

<Router history={browserHistory}>{routes}</Router>

这篇关于如何使用 React-Router 根据 URL/路径更新 ReactJS 组件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！