React.js refs 和props传递数据

import React from 'react';
import { Button} from 'antd';

///子组件
var HelloMessage = React.createClass({
childMethod: function(){
alert("组件之间通信成功");
},
render: function() {
return <div> <h1>Hello {this.props.name}</h1> <Button onClick={this.childMethod}>子组件</Button></div>
}
});

//父组件
var ImDaddyComponent = React.createClass({
getDS: function(){
//调用组件进行通信
this.refs.getButton.childMethod();
},
render: function(){
return (
<div>
<HelloMessage name="John" ref="getButton" />
<Button onClick={this.getDS}>父组件</Button>
</div>
);
}
});

export default class Home extends React.Component {
render() {
return (
<ImDaddyComponent/>
);
}
}

<HelloMessage name="John" ref="getButton" />