Question

我在angular 6应用中有简单的导航，

这是HTML

<nav class="main-nav>
<ul class="main-nav__list " ng-sticky [addClass]="'main-sticky-link'" [ngClass]="ref.click === true? 'Navbar__ToggleShow' :''">
            <li class="main-nav__item">
              <a class="main-nav__link" routerLink="['/']" routerLinkActive="active">Home</a>
            </li>
            <li class="main-nav__item"> 
              <a class="main-nav__link" routerLink="['/about']" routerLinkActive="active">About us</a>
            </li>

          </ul>
</nav>

这是app.routing模块

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule, Routes } from '@angular/router';
import { MainLayoutComponent } from './layout/main-layout/main-layout.component';
import { AboutComponent } from './components/about/about.component';
import { WhatwedoComponent } from './components/whatwedo/whatwedo.component';
import { FooterComponent } from './components/footer/footer.component';
import { ProjectsComponent } from './components/projects/projects.component';
const routes: Routes = [
  { path: 'about', component: AboutComponent },
  { path: 'what', component: WhatwedoComponent },
  { path: 'contacts', component: FooterComponent },
  { path: 'projects', component: ProjectsComponent},
];

@NgModule({
  imports: [
    CommonModule,
    RouterModule.forRoot(routes),
  ],
  declarations: []
})
export class AppRoutingModule { }

这是应用模块

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { NgStickyDirective } from 'ng-sticky';
import { RouterModule } from '@angular/router';
import { AppComponent } from './app.component';
import { MainLayoutComponent } from './layout/main-layout/main-layout.component';
import { AppRoutingModule } from './/app-routing.module';
import { MainNavDirective } from './layout/main-nav.directive';
import { AboutComponent } from './components/about/about.component';
import { WhatwedoComponent } from './components/whatwedo/whatwedo.component';
import { FooterComponent } from './components/footer/footer.component';
import { WhyChooseUsComponent } from './components/why-choose-us/why-choose-us.component';
import { TeamComponent } from './components/team/team.component';
import { ProjectsComponent } from './components/projects/projects.component';
import { ClientsComponent } from './components/clients/clients.component';
import { HowItWorksComponent } from './components/how-it-works/how-it-works.component';
import { PartnersComponent } from './components/partners/partners.component';

@NgModule({
  declarations: [
    AppComponent,
    NgStickyDirective,
    MainLayoutComponent,
    MainNavDirective,
    AboutComponent,
    WhatwedoComponent,
    FooterComponent,
    WhyChooseUsComponent,
    TeamComponent,
    ProjectsComponent,
    ClientsComponent,
    HowItWorksComponent,
    PartnersComponent
  ],
  imports: [
    BrowserModule,
    RouterModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

当我运行我的应用程序并单击关于我们时，出现以下错误：

core.js:1673 ERROR Error: Uncaught (in promise): Error: Cannot match any routes. URL Segment: '%5B'/about'%5D'
Error: Cannot match any routes. URL Segment: '%5B'/about'%5D'
    at

我尝试了不同的组合来解决该问题，但仍然无法摆脱此错误，

我的代码在做什么错？任何帮助都会有所帮助

Answer 1

当您像这样使用routerLink时，您需要先停顿它应该去的路由的值。但是，当您使用带有属性绑定语法的routerLink时，如下所示：[routerLink]，则应为其分配一个属性名称，该属性的值将是用户应导航到的路由。

因此，要解决您的问题，请在HTML中将此routerLink="['/about']"替换为routerLink="/about"。

在其他地方，实际上不需要使用属性绑定语法。我已经修复它，您可以简单地使用以下模板语法：

<nav class="main-nav>
  <ul 
    class="main-nav__list" 
    ng-sticky 
    addClass="main-sticky-link" 
    [ngClass]="ref.click ? 'Navbar__ToggleShow' : ''">
    <li class="main-nav__item" routerLinkActive="active">
      <a class="main-nav__link" routerLink="/">Home</a>
    </li>
    <li class="main-nav__item" routerLinkActive="active"> 
      <a class="main-nav__link" routerLink="/about">About us</a>
    </li>
  </ul>
</nav>

它还需要知道应该将对应于其到达路线的Component模板确切地加载到何处。因此，请不要忘记在上面提供的模板或父组件中添加<router-outlet></router-outlet>。

您的AppRoutingModule还有另一个问题。您需要从那里导出RouterModule，以便AppModule可以在导入时使用它。要解决此问题，请将其添加到AppRoutingModule数组中，以将其从exports导出。

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule, Routes } from '@angular/router';
import { MainLayoutComponent } from './layout/main-layout/main-layout.component';
import { AboutComponent } from './components/about/about.component';
import { WhatwedoComponent } from './components/whatwedo/whatwedo.component';
import { FooterComponent } from './components/footer/footer.component';
import { ProjectsComponent } from './components/projects/projects.component';
const routes: Routes = [
  { path: 'about', component: AboutComponent },
  { path: 'what', component: WhatwedoComponent },
  { path: 'contacts', component: FooterComponent },
  { path: 'projects', component: ProjectsComponent},
];

@NgModule({
  imports: [
    CommonModule,
    RouterModule.forRoot(routes),
  ],
  exports: [RouterModule],
  declarations: []
})
export class AppRoutingModule { }

Answer 2

错误提示您的路由器链接应与配置的现有路由匹配

应该只是Jaccard index“

Answer 3

如果您需要[]语法（对于“ 编辑表单”很有用），当您需要在路由中传递 id 之类的参数时，像这样：

[routerLink]="['edit', business._id]"

对于“ 关于页面”，没有像您这样的参数，

[routerLink]="/about"

或

[routerLink]=['about']

可以解决问题。

错误错误：未捕获（承诺），无法匹配任何路由。 URL段

3 个答案: