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?
路线:
<Route state={this.state} exact path="/customers/:id" render={(props) => <PageCustomer {...props} state={this.state} />} />
然后可以像这样访问PageCustomer组件中的参数:
例如,PageCustomer组件中的api调用:
axios({
method: 'get',
url: '/api/customers/' + this.props.match.params.id,
data: {},
headers: {'X-Requested-With': 'XMLHttpRequest'}
})
路线:
<Route state={this.state} exact path="/customers/:id" render={(props) => <PageCustomer {...props} state={this.state} />} />
然后可以像这样访问PageCustomer组件中的参数:
例如,PageCustomer组件中的api调用:
axios({
method: 'get',
url: '/api/customers/' + this.props.match.params.id,
data: {},
headers: {'X-Requested-With': 'XMLHttpRequest'}
})
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。
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>
}