Angular13路由:静态路由解析数据无法正常工作
创始人
2024-10-22 00:00:09
0

在静态路由中使用resolve属性来解决数据解析问题。以下是一个示例:

app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { HomeComponent } from './home/home.component';
import { AboutComponent } from './about/about.component';
import { ContactComponent } from './contact/contact.component';
import { NotFoundComponent } from './not-found/not-found.component';

const routes: Routes = [
  { 
    path: '', 
    component: HomeComponent 
  },
  { 
    path: 'about',
    component: AboutComponent,
    resolve: {
      data: AboutResolver // resolve data before navigating to AboutComponent
    }
  },
  { 
    path: 'contact', 
    component: ContactComponent,
    resolve: {
      data: ContactResolver // resolve data before navigating to ContactComponent
    }
  },
  { 
    path: '**', 
    component: NotFoundComponent 
  }
];

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

about.resolver.ts

import { Injectable } from '@angular/core';
import { Resolve } from '@angular/router';
import { Observable } from 'rxjs';
import { AboutService } from './about.service';

@Injectable({
  providedIn: 'root'
})
export class AboutResolver implements Resolve {

  constructor(private aboutService: AboutService) { }

  resolve(): Observable {
    return this.aboutService.getData();
  }
}

contact.resolver.ts

import { Injectable } from '@angular/core';
import { Resolve } from '@angular/router';
import { Observable } from 'rxjs';
import { ContactService } from './contact.service';

@Injectable({
  providedIn: 'root'
})
export class ContactResolver implements Resolve {

  constructor(private contactService: ContactService) { }

  resolve(): Observable {
    return this.contactService.getData();
  }
}

关键点:

  • 在静态路由中加入resolve属性,并指定对应的Resolver服务
  • Resolver服务中实现resolve()方法,并返回需要的数据
  • 静态路由组件中通过ActivatedRoute服务获取resolve返回的数据

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