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

其他回答

对于v6:注意!状态应该在from to={}之外

// route setup
<Route path="/employee-edit/:empId" element={<EmployeeEdit />} / >

链接到组件

<Link to={"/employee-edit/1"} state={{ data: employee }} > Edit </Link>

<Link to={{
       pathname: "/employee-edit/1",
       search: "?sort=name",
       hash: "#the-hash",
     }}
       state={{ data: employee }} > Edit </Link>

注意:state在from{}之外，但是for 版本5:

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

Funtional组件:

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

const LinkTest = () => {
  const location = useLocation();
  console.log("Location", location);
  return <h1>Link Test</h1>;
};

export default LinkTest;

类组件:为了使用钩子，我们需要将它包装在功能组件中，并传递props:

import React, { Component } from "react";
import { useLocation, useParams } from "react-router-dom";

class LinkTestComponent extends Component {
  render() {
    console.log(this.props);
    return <h1>Link Test</h1>;
  }
}

export default () => (
  <LinkTestComponent params={useParams()} location={useLocation()} />
);

用"react-router-dom": "^6.2.2"测试，

2022-05-18 11:12:29

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

安装react-router-dom后

<Link
    to={{
      pathname: "/product-detail",
      productdetailProps: {
       productdetail: "I M passed From Props"
      }
   }}>
    Click To Pass Props
</Link>

和路由重定向的另一端这样做

componentDidMount() {
            console.log("product props is", this.props.location.productdetailProps);
          }

2019-08-01 07:50:43

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

如果你只是想替换路由中的蛞蝓，你可以使用react-router 4.3(2018)中引入的generatePath。到目前为止，它还没有包含在react-router-dom (web)文档中，但在react-router (core)中。问题# 7679

// myRoutes.js
export const ROUTES = {
  userDetails: "/user/:id",
}


// MyRouter.jsx
import ROUTES from './routes'

<Route path={ROUTES.userDetails} ... />


// MyComponent.jsx
import { generatePath } from 'react-router-dom'
import ROUTES from './routes'

<Link to={generatePath(ROUTES.userDetails, { id: 1 })}>ClickyClick</Link>

这和django.urls.reverse一段时间以来的概念是一样的。

2020-11-05 01:25:22

在Link react-router中传递道具

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