Javascript 单击鼠标5调用函数
我有这个HTMLJavascript 单击鼠标5调用函数,javascript,angular,typescript,Javascript,Angular,Typescript,我有这个HTML <nav class="navbar navbar-expand-lg navbar-light bg-light"> <div class='container'> <ul class="nav navbar-nav"> <li class='nav-item'> <a class='nav-link' routerLink="/">Home</a> &
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class='container'>
<ul class="nav navbar-nav">
<li class='nav-item'>
<a class='nav-link' routerLink="/">Home</a>
</li>
<li class='nav-item'>
<a class='nav-link' routerLink="/about">About</a>
</li>
<li class='nav-item'>
<a class='nav-link' routerLink="/login">Log in</a>
</li>
<li class='nav-item'>
<a class='nav-link' routerLink="/register">Register</a>
</li>
<li class='nav-item'>
<a class='nav-link' (click)="doLogout()" routerLink="/logout">Log out</a>
</li>
</ul>
</div>
</nav>
现在,如何使用Angular 5中的(单击)
调用此方法?谷歌奇怪地对Angular 5保持沉默。现在,如果我单击“注销”按钮,我会得到以下错误错误:“未捕获(承诺中):错误:无法匹配任何路由。URL段:'logout'
。我如何让它运行该功能,而不是重新定位?我认为后台有某种“preventDefault”
我的路线
export const rootRouterConfig: Routes = [
// {path: '', redirectTo: '', pathMatch: 'full'},
{path: '', component: HomeComponent},
{path: 'about', component: AboutComponent},
{path: 'login', component: LoginComponent, canActivate: [AuthGuard]},
{path: 'register', component: RegisterComponent, canActivate: [AuthGuard]},
{path: 'user', component: UserComponent, resolve: {data: UserResolver}},
// {path: 'tasks', component: TasksComponent, canActivate: [AuthGuard]},
];
您可以使用服务实例调用方法
<a class='nav-link' (click)="svs.doLogout()" routerLink="/logout">Log out</a>
我最后做的是: 我将该方法添加到主
app.component.ts
。这样,它在应用程序中的任何地方都可用。如下所示:
import {Component, ViewEncapsulation} from '@angular/core';
import {AuthService} from './core/auth.service';
import {Router} from '@angular/router';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss'],
encapsulation: ViewEncapsulation.None
})
export class AppComponent {
showLogout: boolean = false;
constructor(
public authService: AuthService,
private router: Router,
) {
}
checkSession() {
var checkKey = localStorage.getItem('sessionKey');
if (checkKey == null) {
this.showLogout = false; // changed
console.log('null key: ', checkKey);
} else {
this.showLogout = true; // changed
// this check will only be available once the user is logged in
console.log('key exist: ', checkKey);
}
}
logout() {
this.authService.doLogout()
.then((res) => {
this.router.navigateByUrl('/login');
}, (error) => {
console.log('Logout error', error);
});
}
}
然后,在我的HTML模板中,我只做了以下操作:
<li class='nav-item'>
<a class='nav-link' (click)="logout()" routerLink="/logout">Wyloguj</a>
</li>
威洛古
运行该功能是一回事,但您似乎也有路由问题。您可以发布您的路由模块吗?您没有
/logout
路由,这就是错误告诉您我已更新的路由。我只是不管理该案例。我以为它只会运行该功能。您的doLogo将在那里处理所有问题ut
函数目前与路由无关。即使你想在函数内部处理重定向,你仍然需要将路由添加到你的routerConfigOk中,我想我有点明白了。并且确保你已经在一个模块中配置了所有路由。是否可以只将此添加到一个组件并让它工作每隔一次?好的,现在它确实重定向了我,但它没有调用函数。我的IDE说:标识符没有定义。组件声明、模板变量声明和元素引用不包含这样的成员
。我向每个构造函数添加了public svs:authService
。
import {Component, ViewEncapsulation} from '@angular/core';
import {AuthService} from './core/auth.service';
import {Router} from '@angular/router';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss'],
encapsulation: ViewEncapsulation.None
})
export class AppComponent {
showLogout: boolean = false;
constructor(
public authService: AuthService,
private router: Router,
) {
}
checkSession() {
var checkKey = localStorage.getItem('sessionKey');
if (checkKey == null) {
this.showLogout = false; // changed
console.log('null key: ', checkKey);
} else {
this.showLogout = true; // changed
// this check will only be available once the user is logged in
console.log('key exist: ', checkKey);
}
}
logout() {
this.authService.doLogout()
.then((res) => {
this.router.navigateByUrl('/login');
}, (error) => {
console.log('Logout error', error);
});
}
}
<li class='nav-item'>
<a class='nav-link' (click)="logout()" routerLink="/logout">Wyloguj</a>
</li>