我正在使用MobX进行状态管理,并且还将一些信息保存在localStorage中。

这是我的mobxStore的样子:



const hydrate = create({
    storage: localStorage, // or AsyncStorage in react-native; default: localStorage
    jsonify: false  // if you use AsyncStorage, here shoud be true; default: true
})

export class VendorStore {
    @observable vendor = {};
    @persist @observable.ref loginState = localStorage.getItem('loginState');
}

var vendorStore = new VendorStore()
hydrate('vendorStore', vendorStore).then(() => console.log('vendorStore has been hydrated'))

export default vendorStore





这个想法是通过loginState控制页面的重定向

这是我的Dashboard.js的样子:



if (vendorStore.loginState === false) { return <Redirect to='/signin' /> }
    if (vendorStore.loginState === true) {
        return (
            <div className="Dashboard">
                <h1>Dashboard</h1>
                <Main />
            </div>
        )





它要么无法正常工作,或者当loginStatefalse时无法重定向,或者抛出如下所示的我反应渲染错误:

react-dom.development.js:57 Uncaught Invariant Violation: Dashboard(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null;


任何帮助,将不胜感激,

谢谢

最佳答案

If else在jsx上不起作用,请尝试以下

vendorStore.loginState ?  return (
            <div className="Dashboard">
                <h1>Dashboard</h1>
                <Main />
            </div>
        ): return <Redirect to='/signin' />

09-26 19:32