react.js 前端 javascript ecmascript 前端框架 react中Can't call setState on a component 警告提示解决

react中警告提示：

Can't call setState on a component that is not yet mounted. This is a no-op, but it might indicate a bug in your application. Instead, assign to `this.state` directly or define a `state = {};

代码：

class App extends React.Component{ constructor(props) { super(props); ... this.state = { name:"开发测试", adopters:[] } this.init() } init(){ ... this.setState({adopters:result}) }

因为在​constructor() 中初始化state使用了setState，调整如下即可：

class App extends React.Component{ constructor(props) { super(props); ... this.state = { name:"开发测试", adopters:[] } } componentDidMount(){ this.init() } init(){ ... this.setState({adopters:result}) }

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