如何解决会话超时注销::由setTimeout调用时出现RouterExtensions错误
我正在尝试在空闲一段时间后实现会话超时。
当用户登录时,我正在启动一个计时器,该计时器将在一个时间间隔后将用户注销,并将其路由回登录表单。
如果发生事件(点击),我想清除计时器(此处为5秒)并启动一个新计时器,从而使用户保持登录状态。
这是login.component.ts中的setTimout调用:
var timeoutId=setTimeout(this.funcService.logout,5000);
ApplicationSettings.setNumber("timeoutId",timeoutId);
这是具有注销功能的func.service.ts。
import {Injectable} from '@angular/core';
import {RouterExtensions} from "nativescript-angular/router";
import * as ApplicationSettings from "@nativescript/core/application-settings";
@Injectable({ providedIn: 'root' })
export class FuncService {
constructor(
private routerExtensions: RouterExtensions
) {
}
logout(): void {
ApplicationSettings.setBoolean("authenticated",false);
ApplicationSettings.remove("token");
this.routerExtensions.navigate(["./login"],{clearHistory: true});
}
}
app.component.html
<page-router-outlet actionBarVisibility="never" (tap)=onEvent()></page-router-outlet>
app.component.ts
onEvent() {
var timeoutId=ApplicationSettings.getNumber("timeoutId");
ApplicationSettings.remove("timeoutId");
clearTimeout(timeoutId);
var timeoutId=setTimeout(this.funcService.logout,5000);
ApplicationSettings.setNumber("timeoutId",timeoutId);
}
当计时器耗尽并调用this.funcService.logout
时,我得到了错误消息:
JS: ### ErrorHandler Error: TypeError: Cannot read property 'routerExtensions' of undefined
JS: ### ErrorHandler Stack: TypeError: Cannot read property 'routerExtensions' of undefined
JS: at webpackHotUpdate../shared/func.service.ts.FuncService.logout (file:///app\shared\func.service.ts:35:9)
JS: at ZoneDelegate.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneDelegate.invokeTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:421:0)
JS: at Object.onInvokeTask (file:///node_modules\@angular\core\fesm5\core.js:24328:0)
JS: at ZoneDelegate.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneDelegate.invokeTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:420:0)
JS: at Zone.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.Zone.runTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:188:0)
JS: at push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneTask.invokeTask (file:///data/...
如果我明确地致电this.funcService.logout
,我不会出错。
知道这里发生了什么,以便我可以解决吗?
这是实现此目的的好方法吗?
TIA
注意:我也尝试过使用路由器
this.router.navigate(["./login"],{
relativeto: this.activatedRoute
});
S: ### ErrorHandler Error: TypeError: Cannot read property 'router' of undefined
JS: ### ErrorHandler Stack: TypeError: Cannot read property 'router' of undefined
JS: at module.exports.push../shared/func.service.ts.FuncService.logout (file:///app\shared\func.service.ts:38:9)
JS: at ZoneDelegate.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneDelegate.invokeTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:421:0)
JS: at Object.onInvokeTask (file:///node_modules\@angular\core\fesm5\core.js:24328:0)
JS: at ZoneDelegate.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneDelegate.invokeTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:420:0)
JS: at Zone.push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.Zone.runTask (file:///node_modules\@nativescript\angular\zone-js\dist\zone-nativescript.js:188:0)
JS: at push.../node_modules/@nativescript/angular/zone-js/dist/zone-nativescript.js.ZoneTask.invokeTask (file:///data/data/com.FileExpenses.app/files/app/v...
更新
这有效
var timeoutId=setTimeout(() => {
ApplicationSettings.setBoolean("authenticated",false);
ApplicationSettings.remove("token");
this.routerExtensions.navigate(["./login"],{clearHistory: true});
},5000);
感谢@Yong
解决方法
修复未定义的routerExtensions
var timeoutId=setTimeout(() => this.funcService.logout,5000);
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