我正在ReactJs组件中进行基本的Ajax调用,调用2个不同的API。但是,当运行调用(在我确定可用并返回数据的URL上),我收到以下错误信息:
Uncaught TypeError: Cannot read property 'groupsData' of null
这里是单个组件:
var BrowseWidgetBox = React.createClass({
getGroupsApi: function(){
$.ajax({
url: this.props.groupsApi,
dataType: 'json',
type: 'GET',
success: function(groupsData){
this.setState({groupsData: groupsData});
}.bind(this),
error: function(xhr, status, err){
console.error(this.props.groupsApi ,status, err.toString());
}.bind(this)
});
},
getItemsApi: function() {
$.ajax({
url: this.props.itemsApi,
dataType: 'json',
type: 'GET',
success: function(itemsData){
this.setState({itemsData: itemsData});
}.bind(this),
error: function(xhr, status, err){
console.error(this.props.groupsApi ,status, err.toString());
}.bind(this)
});
},
componentDidMount: function() {
this.getGroupsApi();
this.getItemsApi();
},
render: function() {
return (<div className="BrowseWidgetBox">
<MainMenu groupsData={this.state.groupsData} itemsData={this.state.itemsData} />
<Display />
</div>);
}
});
React.render(
<BrowseWidgetBox groupsApi="/*imagine a working url here*/" itemsApi="/*imagine a working url here*/" />, document.getElementById('widget-container')
);
在ReactJS / Ajax方面,我是否错过了什么显而易见的东西?