角度路由:延迟加载后,页面将重定向到默认路由

时间:2018-11-24 04:30:06

标签: angular angular-ui-router

我的angular 6应用程序中有两个模块,一个是app模块,另一个是User模块,我正在尝试实现用户模块的延迟加载。如果我手动点击URL,则路由有效,然后将显示来自用户模块的正确页面。但是,当我尝试从标题组件导航时,它并没有导航到用户页面,而是转到了默认页面。

Header.html

<form class="form-inline my-2 my-lg-0">
      <button class="btn btn-secondary my-2 my-sm-0" type="submit" routerLink="/user/login">Login</button>
      <button class="btn btn-secondary my-2 my-sm-0" type="submit" routerLink="/user/register">Register</button>
    </form>

应用程序路由模块

import { NgModule, Component } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { WelcomeComponent } from './components/welcome/welcome.component';
import { PagenotfoundComponent } from './components/pagenotfound/pagenotfound.component';

const routes: Routes = [
  {
    path:'welcome',
    component:WelcomeComponent
  },
  {
    path:'user',
    loadChildren:'./user/user.module#UserModule'
  },
  {
    path: '', 
    redirectTo: 'welcome', 
    pathMatch: 'full' },
  { 
    path: '**', 
    component: PagenotfoundComponent 
  }
];

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

用户路由模块

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { LoginComponent } from './components/login/login.component';
import { RegisterComponent } from './components/register/register.component';

const routes: Routes = [
  {
    path:'login',
    component: LoginComponent
  },
  {
    path:'register',
    component:RegisterComponent
  },
  {
    path:'',
    redirectTo:'login',
    pathMatch:'full'
  }
];

@NgModule({
  imports: [RouterModule.forChild(routes)],
  exports: [RouterModule]
})
export class UserRoutingModule { }

应用程序模块

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { HeaderComponent } from './components/header/header.component';
import { FooterComponent } from './components/footer/footer.component';
import { WelcomeComponent } from './components/welcome/welcome.component';
import { PagenotfoundComponent } from './components/pagenotfound/pagenotfound.component';

@NgModule({
  declarations: [
    AppComponent,
    HeaderComponent,
    FooterComponent,
    WelcomeComponent,
    PagenotfoundComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

因此,当我单击登录按钮时,我可以看到登录页面,但是立即将其重定向到欢迎页面(http://localhost:4200/welcome

1 个答案:

答案 0 :(得分:2)

我认为您只是将router-outlet映射到错误的组件中-请检查

我在stackblitz中尝试了您的相同情况,请看一下

app.component.html

<form class="form-inline my-2 my-lg-0">
      <button class="btn btn-secondary my-2 my-sm-0" type="submit" routerLink="/user/login">Login</button>
      <button class="btn btn-secondary my-2 my-sm-0" type="submit" routerLink="/user/register">Register</button>
    </form>

<router-outlet></router-outlet>

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { RouterModule, Routes} from '@angular/router';
import { AppComponent } from './app.component';
import { HelloComponent } from './hello.component';

const routes: Routes = [
  {
    path:'welcome',
    component:HelloComponent
  },
  {
    path:'user',
    loadChildren:'./modules/lazy/lazy.module#LazyModule'
  },
  {
    path: '', 
    redirectTo: 'welcome', 
    pathMatch: 'full' 
  }

];

@NgModule({
  imports:      [ BrowserModule, FormsModule, RouterModule.forRoot(routes) ],
  declarations: [ AppComponent, HelloComponent ],
  bootstrap:    [ AppComponent ]
})
export class AppModule { }

一切都按预期进行-请查看上面的链接-希望对您有所帮助-编码愉快:)

更新

最后,找到并解决问题花费了很多时间-但问题似乎很小,无法占用我们的时间:)-是的,问题是一个button标签,类型为submit并且太包裹在form标记内-这会导致问题并导致页面重新加载,因为它假定表单已提交,并且使应用component返回

因此,第一个解决方法是您的header.component.html,或者删除form标签,或者将button类型更改为type="button"(如果未将其更改为anchor标签)

<form class="form-inline my-2 my-lg-0">
        <button class="btn btn-secondary my-2 my-sm-0" type="button" [routerLink]="['user']">Login</button>
        <button class="btn btn-secondary my-2 my-sm-0" type="button" routerLink="/user/register">Register</button>
      </form>

这将完全解决您的问题-剩下的就是需要根据您的方便进行修复的

app-routing.module.ts

请勿在此处进行引导,引导程序应仅位于app.module上,因此路由@NgModule()应该像这样

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

user-routing.module.ts

您需要导出RouteModule并从LazyModule中读取,因此路由@NgModule()应该是这样的

@NgModule({
  imports: [
    RouterModule.forChild(routes)
  ],
  exports: [RouterModule]
})
export class UserRoutingModule { }

所有这些都可以修复所有问题,并且您的代码可以完美运行-随时与您分享您的疑虑-祝您编程愉快:)