react-router - 将props传递给处理程序组件 [英] react-router - pass props to handler component

问题描述

我使用 React Router 为我的React.js应用程序提供了以下结构：

I have the following structure for my React.js application using React Router:

var Dashboard = require('./Dashboard');
var Comments = require('./Comments');

var Index = React.createClass({
  render: function () {
    return (
        <div>
            <header>Some header</header>
            <RouteHandler />
        </div>
    );
  }
});

var routes = (
  <Route path="/" handler={Index}>
    <Route path="comments" handler={Comments}/>
    <DefaultRoute handler={Dashboard}/>
  </Route>
);

ReactRouter.run(routes, function (Handler) {
  React.render(<Handler/>, document.body);
});

我想将一些属性传递到评论组件。

I want to pass some properties into the Comments component.

（通常我会这样做< Comments myprop =value/> ）

React Router最简单，最正确的方法是什么？

What's the easiest and right way to do so with React Router?

推荐答案

---

UPDATE 自新版本发布以来，可以通过 Route 组件直接传递道具，而无需使用包装器

---

UPDATE since new release, it's possible to pass props directly via the Route component, without using a Wrapper

例如，使用 render prop。反应路由器的链接： https://reacttraining.com/react-router/ web / api / Route / render-func

For example, by using render prop. Link to react router: https://reacttraining.com/react-router/web/api/Route/render-func

codesandbox的代码示例： https://codesandbox.io/s/z3ovqpmp44

Code example at codesandbox: https://codesandbox.io/s/z3ovqpmp44

组件

    class Greeting extends React.Component {
        render() {
            const { text, match: { params } } = this.props;

            const { name } = params;

            return (
                <React.Fragment>
                    <h1>Greeting page</h1>
                    <p>
                        {text} {name}
                    </p>
                </React.Fragment>
            );
        }
    }

和用法

<Route path="/greeting/:name" render={(props) => <Greeting text="Hello, " {...props} />} />

---

OLD VERSION

我首选的方法是包装 Comments 组件并将包装器作为路由处理程序传递。

My preferred way is wrap the Comments component and pass the wrapper as a route handler.

这是您应用更改的示例：

This is your example with changes applied:

var Dashboard = require('./Dashboard');
var Comments = require('./Comments');

var CommentsWrapper = React.createClass({
  render: function () {
    return (
        <Comments myprop="myvalue" />
    );
  }
});

var Index = React.createClass({
  render: function () {
    return (
        <div>
            <header>Some header</header>
            <RouteHandler />
        </div>
    );
  }
});

var routes = (
  <Route path="/" handler={Index}>
    <Route path="comments" handler={CommentsWrapper}/>
    <DefaultRoute handler={Dashboard}/>
  </Route>
);

ReactRouter.run(routes, function (Handler) {
  React.render(<Handler/>, document.body);
});

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