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我试图创建一个小反应组件，但是，我无法设置状态。以下是我的代码。在_onChange函数中，我试图设置一个数组长度为10的状态和console.log相同。我正在控制台中获得一个空数组。setState in react在反应组件中不起作用
var Home = React.createClass({
getInitialState: function() {
return ({
reviewData: []
});
},
componentWillMount: function() {
ReviewStore.addChangeListener(this._onChange);
ReviewAction.getRatings();
console.log(this.state.reviewData);
},
_onChange: function() {
var res = ReviewStore.getRating();
console.log(res); //Here I am getting array of length 10
this.setState({reviewData: ReviewStore.getRating()});
console.log(this.state.reviewData); //Here I am getting array of length 0
},
componentWillUnmount: function() {
ReviewStore.removeChangeListener(this._onChange);
},
ratingChanged : function(newRating) {
console.log(newRating)
},
render: function() {
return(
<div>
<h2>Rating of Arlo Smart Home 1 HD Camera</h2>
<hr/>
<h4>Average Rating: </h4><ReactStars half={false} onChange={this.ratingChanged} size={24}/>
</div>
)
}
});