Angular의 라우팅과 빠르게 시작하는 방법에 대해 자세히 알아보세요.

// app.module.ts
import { Routes } from "@angular/router"

const routes: Routes = [
  {
    path: "home",
    component: HomeComponent
  },
  {
    path: "about",
    component: AboutComponent
  }
]

// app.module.ts
import { RouterModule, Routes } from "@angular/router"

@NgModule({
  imports: [RouterModule.forRoot(routes, { useHash: true })],
})
export class AppModule {}

<!-- 路由插座即占位组件 匹配到的路由组件将会显示在这个地方 -->
<router-outlet></router-outlet>

<a routerLink="/home">首页</a>
<a routerLink="/about">关于我们</a>

const routes: Routes = [
  {
    path: "home",
    component: HomeComponent
  },
  {
    path: "about",
    component: AboutComponent
  },
  {
    path: "",
    // 重定向
    redirectTo: "home",
    // 完全匹配
    pathMatch: "full"
  }
]

const routes: Routes = [
  {
    path: "home",
    component: HomeComponent
  },
  {
    path: "**",
    component: NotFoundComponent
  }
]

<a routerLink="/about" [queryParams]="{ name: &#39;kitty&#39; }">关于我们</a>

import { ActivatedRoute } from "@angular/router"

export class AboutComponent implements OnInit {
  constructor(private route: ActivatedRoute) {}

  ngOnInit(): void {
    this.route.queryParamMap.subscribe(query => {
      query.get("name")
    })
  }
}

const routes: Routes = [
  {
    path: "home",
    component: HomeComponent
  },
  {
    path: "about/:name",
    component: AboutComponent
  }
]

<a [routerLink]="[&#39;/about&#39;, &#39;zhangsan&#39;]">关于我们</a>

import { ActivatedRoute } from "@angular/router"

export class AboutComponent implements OnInit {
  constructor(private route: ActivatedRoute) {}

  ngOnInit(): void {
    this.route.paramMap.subscribe(params => {
      params.get("name")
    })
  }
}

const routes: Routes = [
  {
    path: "about",
    component: AboutComponent,
    children: [
      {
        path: "introduce",
        component: IntroduceComponent
      },
      {
        path: "history",
        component: HistoryComponent
      }
    ]
  }
]

<!-- about.component.html -->
<app-layout>
  <p>about works!</p>
  <a routerLink="/about/introduce">公司简介</a>
  <a routerLink="/about/history">发展历史</a>
  <div>
    <router-outlet></router-outlet>
  </div>
</app-layout>

{
  path: "about",
  component: AboutComponent,
  children: [
    {
      path: "introduce",
      component: IntroduceComponent,
      outlet: "left"
    },
    {
      path: "history",
      component: HistoryComponent,
      outlet: "right"
    }
  ]
}

<!-- about.component.html -->
<app-layout>
  <p>about works!</p>
  <router-outlet name="left"></router-outlet>
  <router-outlet name="right"></router-outlet>
</app-layout>

<a
    [routerLink]="[
      &#39;/about&#39;,
      {
        outlets: {
          left: [&#39;introduce&#39;],
          right: [&#39;history&#39;]
        }
      }
    ]"
>关于我们</a>

<!-- app.component.html -->
<button (click)="jump()">跳转到发展历史</button>

// app.component.ts
import { Router } from "@angular/router"

export class HomeComponent {
  constructor(private router: Router) {}
  jump() {
    this.router.navigate(["/about/history"], {
      queryParams: {
        name: "Kitty"
      }
    })
  }
}

import { NgModule } from "@angular/core"

import { HomeComponent } from "./pages/home/home.component"
import { NotFoundComponent } from "./pages/not-found/not-found.component"

const routes: Routes = [
  {
    path: "",
    component: HomeComponent
  },
  {
    path: "**",
    component: NotFoundComponent
  }
]

@NgModule({
  declarations: [],
  imports: [RouterModule.forRoot(routes, { useHash: true })],
  // 导出 Angular 路由功能模块，因为在根模块的根组件中使用了 RouterModule 模块中提供的路由插座组件
  exports: [RouterModule]
})
export class AppRoutingModule {}

import { BrowserModule } from "@angular/platform-browser"
import { NgModule } from "@angular/core"
import { AppComponent } from "./app.component"
import { AppRoutingModule } from "./app-routing.module"

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

import { NgModule } from "@angular/core"
import { Routes, RouterModule } from "@angular/router"
import { LoginComponent } from "./pages/login/login.component"
import { RegisterComponent } from "./pages/register/register.component"

const routes: Routes = [
  {
    path: "login",
    component: LoginComponent
  },
  {
    path: "register",
    component: RegisterComponent
  }
]

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

import { Injectable } from "@angular/core"
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree, Router } from "@angular/router"
import { Observable } from "rxjs"

@Injectable({
  providedIn: "root"
})
export class AuthGuard implements CanActivate {
  constructor(private router: Router) {}
  canActivate(): boolean | UrlTree {
    // 用于实现跳转
    return this.router.createUrlTree(["/user/login"])
    // 禁止访问目标路由
    return false
    // 允许访问目标路由
    return true
  }
}

{
  path: "about",
  component: AboutComponent,
  canActivate: [AuthGuard]
}

import { Injectable } from "@angular/core"
import { CanActivateChild, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree } from "@angular/router"
import { Observable } from "rxjs"

@Injectable({
  providedIn: "root"
})
export class AdminGuard implements CanActivateChild {
  canActivateChild(): boolean | UrlTree {
    return true
  }
}

{
  path: "about",
  component: AboutComponent,
  canActivateChild: [AdminGuard],
  children: [
    {
      path: "introduce",
      component: IntroduceComponent
    }
  ]
}

import { Injectable } from "@angular/core"
import {
  CanDeactivate,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  UrlTree
} from "@angular/router"
import { Observable } from "rxjs"

export interface CanComponentLeave {
  canLeave: () => boolean
}

@Injectable({
  providedIn: "root"
})
export class UnsaveGuard implements CanDeactivate<CanComponentLeave> {
  canDeactivate(component: CanComponentLeave): boolean {
    if (component.canLeave()) {
      return true
    }
    return false
  }
}

{
  path: "",
  component: HomeComponent,
  canDeactivate: [UnsaveGuard]
}

import { CanComponentLeave } from "src/app/guards/unsave.guard"

export class HomeComponent implements CanComponentLeave {
  myForm: FormGroup = new FormGroup({
    username: new FormControl()
  })
  canLeave(): boolean {
    if (this.myForm.dirty) {
      if (window.confirm("有数据未保存, 确定要离开吗")) {
        return true
      } else {
        return false
      }
    }
    return true
  }