angular 中的自定義模塊:bootstrap
當項目比較龐大時,組件很是之多,這時候須要把相同功能的的組件分模塊加載。分模塊加載有兩大好處:app
1. 項目結構清晰ide
2. 提升加載速度spa
一. angular中自定義模塊的目錄結構劃分:component

二. 建立自定義模塊orm
執行 ng g module modules/user, 生成 user.module.tsrouter
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { AddressComponent } from './components/address/address.component';
import { UserComponent } from './user.component';
import { OrderComponent } from './components/order/order.component';
import { CommonService } from './services/common.service'
@NgModule({
declarations: [AddressComponent, UserComponent, OrderComponent],
// 導出該模塊的組件,不導出的話,沒法在其餘模塊使用該模塊的組件
exports: [UserComponent, OrderComponent],
imports: [
CommonModule
],
providers: [CommonService]
})
export class UserModule { }
三. 在其餘模塊中導入自定義模塊,導入後,自定義模塊中暴露(exports)的組件就能夠直接使用了blog
// 引入自定義模塊
import { UserModule } from './modules/user/user.module'
@NgModule({
declarations: [
],
imports: [
UserModule // 導入自定義模塊
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
經過路由動態加載自定義模塊:路由
一. 在自定義模塊中建立本身的路由文件,經過命令或者手動建立it
ng g module modules/user --routing 會生成一個 user.routing.ts 的文件。user.routing.ts文件中配置路由。配置方式
和根組件中配置一致。也能夠配置子路由,配置方式一致。
import { UserComponent } from './user.component'
import { AddressComponent } from './components/address/address.component'
import { OrderComponent } from './components/order/order.component'
const routes: Routes = [
{ path: '', component: UserComponent },
{ path: 'order', component: OrderComponent },
{ path: 'address', component: AddressComponent }
];
@NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
export class UserRoutingModule { }
二. 在user模塊中引入 user.routing 。user.module.ts 中導入路由
import { UserRoutingModule } from './user-routing.module'
import { UserComponent } from './user.component';
import { AddressComponent } from './components/address/address.component';
import { OrderComponent } from './components/order/order.component';
import { CommonService } from './services/common.service'
@NgModule({
declarations: [UserComponent, AddressComponent, OrderComponent],
// 導出該模塊的組件,不導出的話,沒法在其餘模塊使用該模塊的組件
// exports: [UserComponent, OrderComponent],
imports: [
CommonModule,
UserRoutingModule
],
providers: [CommonService]
})
export class UserModule { }
三. 在根組件中引入自定義模塊 app.module.ts
// 引入自定義模塊
import { UserModule } from './modules/user/user.module'
@NgModule({
imports: [
BrowserModule,
AppRoutingModule,
UserModule
],
providers: [],
bootstrap: [AppComponent]
})
四. 在根路由模塊中配置 app-routing.ts, 使用 loadChildren : '模塊路徑#模塊類名稱'
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
const routes: Routes = [
{ path: 'user', loadChildren: "./modules/user/user.module#UserModule" },
{ path: 'news', loadChildren: "./modules/news/news.module#NewsModule" },
{ path: 'product', loadChildren: "./modules/product/product.module#ProductModule" },
{ path: '**', redirectTo: 'user' }
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }