我正在更改生成的应用程序中的JHipster布局。
我可以将Principal
注入到router-outlet
内部呈现的任何组件中,但是,如果我尝试将其注入到主组件中,则每次尝试登录/注销时都会显示错误(我刷新页面,一切都显示正常)。
引起问题的代码是
export class JhiMainComponent implements OnInit {
constructor(private jhiLanguageHelper: JhiLanguageHelper, private router: Router, principal: Principal) {}
如果我删除了principal: Principal
,一切都会恢复正常,如果我添加了这个注入,则登录会因错误而停止工作
错误TypeError:无法读取未定义的属性“ authenticate” 在LoginService.logout上(webpack-internal:///./src/main/webapp/app/core/login/login.service.ts:33) 在NavbarComponent.logout(webpack-internal:///./src/main/webapp/app/layouts/navbar/navbar.component.ts:49)中 在Object.eval [作为handleEvent](ng:///ConsuldentAppModule/NavbarComponent.ngfactory.js:695) 在handleEvent(webpack-internal:///./node_modules/@angular/core/fesm5/core.js:19661) 在callWithDebugContext(webpack-internal:///./node_modules/@angular/core/fesm5/core.js:20755) 在Object.debugHandleEvent [作为handleEvent](webpack-internal:///./node_modules/@angular/core/fesm5/core.js:20458) 在dispatchEvent(webpack-internal:///./node_modules/@angular/core/fesm5/core.js:17110)上 在评估时(webpack-internal:///./node_modules/@angular/core/fesm5/core.js:17557) 在HTMLAnchorElement.eval(webpack-internal:///../node_modules/@angular/platform-browser/fesm5/platform-browser.js:1044) 在ZoneDelegate.invokeTask(webpack-internal:///./node_modules/zone.js/dist/zone.js:420)
我需要该属性,因为我有一些条件样式可供选择,具体取决于用户是否登录(这里我尝试使用isAuthenticated()方法)
<div id="page-container" class="page-container fade page-sidebar-fixed page-header-fixed show" [ngClass]="{
'page-without-sidebar': isPageWithoutSidebar() || !isAuthenticated()
}">
<router-outlet name="header" *ngIf="!pageSettings.pageEmpty"></router-outlet>
<router-outlet name="sidebar" *ngIf="!isPageWithoutSidebar() && !pageSettings.pageEmpty && isAuthenticated()"></router-outlet>
<div id="content" class="content" [ngClass]="{
'content-full-width': pageSettings.pageContentFullWidth,
'content-inverse-mode': pageSettings.pageContentInverseMode,
'p-0 m-0': pageSettings.pageEmpty
}">
<router-outlet></router-outlet>
<router-outlet name="popup"></router-outlet>
</div>
<jhi-footer *ngIf="pageSettings.pageWithFooter"></jhi-footer>
</div>
答案 0 :(得分:0)
好吧,我所做的就是用变量创建服务
@Injectable({
providedIn: 'root'
})
export class PageSettingsService {
pageSettings = pageSettings;
constructor() {
}
}
然后我将此服务注入到使用pageSettings
属性的主要组件中
export class AppComponent extends JhiMainComponent implements OnInit {
pageSettings;
// window scroll
pageHasScroll;
ngOnInit() {
super.ngOnInit();
// page settings
this.pageSettings = this.pageSettingsService.pageSettings;
}
}
然后我编辑了登录服务(这部分看起来不干净,但是可以正常工作)
@Injectable({ providedIn: 'root' })
export class LoginService {
constructor(private principal: Principal, private authServerProvider: AuthServerProvider, private pageSettingsService: PageSettingsService) {}
login(credentials, callback?) {
const cb = callback || function() {};
return new Promise((resolve, reject) => {
this.authServerProvider.login(credentials).subscribe(
data => {
this.principal.identity(true).then(account => {
resolve(data);
this.pageSettingsService.pageSettings.pageWithoutSidebar = false; //Added
});
return cb();
},
err => {
this.logout();
reject(err);
return cb(err);
}
);
});
}
...
logout() {
this.pageSettingsService.pageSettings.pageWithoutSidebar = true; //Added
this.authServerProvider.logout().subscribe();
this.principal.authenticate(null);
}
}