# module 模块
# 文件基本结构
//app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
@NgModule({
imports: [ BrowserModule ],
providers: [ Logger ],
declarations: [ AppComponent ],
exports: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
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- imports: 本模块声明的组件模板需要的类所在的其它模块。
- declarations: 声明本模块中拥有的视图类。Angular 有三种视图类:组件、指令和管道。
- exports: declarations 的子集,可用于其它模块的组件模板。
- bootstrap: 指定应用的主视图(称为根组件),它是所有其它视图的宿主。只有根模块才能设置 bootstrap 属性。
- providers: 服务的创建者,并加入到全局服务列表中,可用于应用任何部分。(注意:DI提供者-预定义令牌与多提供者 (opens new window) )
# 根模块
// '/src/app/app.module.ts'
import { NgModule, ErrorHandler } from '@angular/core';
import { RouterModule } from '@angular/router';
// 请求拦截器
import { httpInterceptorProviders } from '@core';
import { AppComponent } from './app.component';
import { CoreModule } from '@core/core.module';
import { RoutesModule } from '@routes/routes.module';
import { LayoutModule } from '@layout/layout.module';
import { SharedModule } from '@shared/shared.module';
@NgModule({
declarations: [
AppComponent,
],
imports: [
RouterModule,
CoreModule,
RoutesModule,
LayoutModule,
SharedModule,
],
providers: [
httpInterceptorProviders,
],
bootstrap: [AppComponent],
})
export class AppModule { }
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# 业务模块
// '/src/app/routes/routes.module.ts'
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { LayoutModule } from '@layout/layout.module';
import { SharedModule } from '@shared/shared.module';
import { RoutesRoutingModule } from './routes-routing.module'; // 路由配置
@NgModule({
declarations: [],
imports: [
CommonModule,
BrowserModule,
BrowserAnimationsModule,
LayoutModule,
SharedModule,
RoutesRoutingModule,
],
exports: [RoutesRoutingModule]
})
export class RoutesModule { }
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// '/src/app/core/core.module.ts'
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { LoginComponent } from './login/login.component';
const routes: Routes = [
{ path: 'login', component: LoginComponent },
{ path: 'index', loadChildren: () => import('./index/index.module').then(mod => mod.IndexModule) }, // 模块懒加载
{ path: 'project', loadChildren: () => import('./projects/project/project.module').then(mod => mod.ProjectModule) },
{ path: '**', redirectTo: 'index', pathMatch: 'full' }
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class RoutesRoutingModule { }
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# 核心模块
// '/src/app/core/core.module.ts'
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# 布局模块
// '/src/app/layout/layout.module.ts'
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { SharedModule } from '@shared/shared.module';
// 布局组件
import { HeaderComponent } from './header/header.component';
import { CopyrightComponent } from './copyright/copyright.component';
@NgModule({
declarations: [
HeaderComponent,
CopyrightComponent,
],
imports: [
CommonModule,
SharedModule,
],
exports: [
HeaderComponent,
CopyrightComponent,
]
})
export class LayoutModule { }
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# 共享模块
// '/src/app/shared/shared.module.ts'
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule } from '@angular/router';
import { FormsModule, ReactiveFormsModule } from '@angular/forms'; // 表单相关
// 工具组件
import { ModalComponent } from './utils/modal/modal.component';
import { DropdownComponent } from './utils/dropdown/dropdown.component';
const utilComponents = [
ModalComponent,
DropdownComponent,
];
// 管道
import { SafeHTMLPipe } from './pipe/safe-html.pipe';
import { SafeUrlPipe } from './pipe/safe-url.pipe';
const pipes = [
SafeHTMLPipe,
SafeUrlPipe,
];
// directives
import { ClickOutsideDirective } from './directives/click-outside.directive';
import { ClickPermissionDirective } from './directives/click-permission.directive';
const directives = [
ClickOutsideDirective,
ClickPermissionDirective,
];
@NgModule({
declarations: [
...utilComponents,
...pipes,
...directives,
],
imports: [
CommonModule,
RouterModule,
FormsModule,
ReactiveFormsModule,
NgbModule,
TranslateModule,
],
exports: [
RouterModule,
NgbModule,
FormsModule,
ReactiveFormsModule,
TranslateModule,
...utilComponents,
...pipes,
...directives,
]
})
export class SharedModule { }
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# 总结
- AppModule 应该 导入 RouterModule、Angular 模块(例如:- - - BrowserModule、BrowserAnimationsModule、HttpClientModule);
- LayoutModule 应该 导入 SharedModule;
- LayoutModule 应该 导出所有 layout component;
- LayoutModule 不应该 导入和声明任何路由;
- RouterModule 应该 导入 SharedModule、CoreModule、LayoutModule以及RouteRoutingModule;
- CoreModule 应该 只保留providers属性;
- SharedModule 应该 包含 Angular 通用模块(例如:CommonModule、FormsModule、RouterModule、ReactiveFormsModule)、第三方通用依赖模块、所有组件(自己写的非业务相关的通用组件)、指令、管道;
- SharedModule 应该导出所有包含模块;
- SharedModule 不应该 有providers属性;
- Service 应该 承担应用的数据操作和数据交互;
- Component 应该 组织视图层的展示和服务计算数据的收集样式分层
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