在Link react-router中传递道具

我正在使用react和react-router。我试图在反应路由器的“链接”中传递属性

var React  = require('react');
var Router = require('react-router');
var CreateIdeaView = require('./components/createIdeaView.jsx');

var Link = Router.Link;
var Route = Router.Route;
var DefaultRoute = Router.DefaultRoute;
var RouteHandler = Router.RouteHandler;
var App = React.createClass({
  render : function(){
    return(
      <div>
        <Link to="ideas" params={{ testvalue: "hello" }}>Create Idea</Link>
        <RouteHandler/>
      </div>
    );
  }
});

var routes = (
  <Route name="app" path="/" handler={App}>
    <Route name="ideas" handler={CreateIdeaView} />
    <DefaultRoute handler={Home} />
  </Route>
);

Router.run(routes, function(Handler) {

  React.render(<Handler />, document.getElementById('main'))
});

“Link”呈现页面，但不将属性传递给新视图。下面是视图代码

var React = require('react');
var Router = require('react-router');

var CreateIdeaView = React.createClass({
  render : function(){
    console.log('props form link',this.props,this)//props not recived
  return(
      <div>
        <h1>Create Post: </h1>
        <input type='text' ref='newIdeaTitle' placeholder='title'></input>
        <input type='text' ref='newIdeaBody' placeholder='body'></input>
      </div>
    );
  }
});

module.exports = CreateIdeaView;

如何使用“链接”传递数据?

当前回答

在Link组件中执行状态

<Link to='register' state={{name:'zayne'}}>

现在要访问页面中的项目，导入useLocation

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

const Register=()=>{

const location = useLocation()

//store the state in a variable if you want 
//location.state then the property or object you want

const Name = location.state.name

return(
  <div>
    hello my name is {Name}
  </div>
)

}

2022-02-10 12:20:05

其他回答

至于react-router-dom 4.x。X (https://www.npmjs.com/package/react-router-dom)你可以传递参数给组件路由到via:

<Route path="/ideas/:value" component ={CreateIdeaView} />

通过(考虑testValue道具被传递给相应的组件(例如上面的App组件)来呈现链接)

<Link to={`/ideas/${ this.props.testValue }`}>Create Idea</Link>

将道具传递给组件构造函数，值参数将通过

props.match.params.value

2017-04-26 15:30:53

有一种方法可以传递多个参数。你可以传递"to"作为对象而不是字符串。

// your route setup
<Route path="/category/:catId" component={Category} / >

// your link creation
const newTo = { 
  pathname: "/category/595212758daa6810cbba4104", 
  param1: "Par1" 
};
// link to the "location"
// see (https://reacttraining.com/react-router/web/api/location)
<Link to={newTo}> </Link>

// In your Category Component, you can access the data like this
this.props.match.params.catId // this is 595212758daa6810cbba4104 
this.props.location.param1 // this is Par1

2017-07-01 12:24:56

在react-router v6中，它是state和useLocation:

<Link to={`/foo`} state={{title: 'foo'}}>

import {useLocation} from "react-router-dom";

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

    return <>
        <h1>{location.state.title}</h1>
    </>
}
export default FooPage;

2023-01-20 11:15:42

在我的情况下，我有一个空道具的功能组件，这解决了它:

<Link
  to={{
    pathname: `/dashboard/${device.device_id}`,
    state: { device },
  }}
>
  View Dashboard
</Link>

在你的函数组件中，你应该有这样的东西:

import { useLocation } from "react-router"
export default function Dashboard() {
  const location = useLocation()
  console.log(location.state)
  return <h1>{`Hello, I'm device ${location.state.device.device_id}!`}</h1>
}

2021-09-25 17:31:47

最简单的方法是使用文档中提到的链接中的to:对象: https://reactrouter.com/web/api/Link/to-object

<Link
  to={{
    pathname: "/courses",
    search: "?sort=name",
    hash: "#the-hash",
    state: { fromDashboard: true, id: 1 }
  }}
/>

我们可以检索上面的params (state)如下:

this.props.location.state // { fromDashboard: true ,id: 1 }

2020-08-13 04:21:12

在Link react-router中传递道具

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