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161 lines
4.4 KiB
161 lines
4.4 KiB
# 在AspNet Core MVC Web Application中使用ABP
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本教程将介绍如何开始以最少的依赖关系开始使用ABP开发.
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通常情况下你需要下载一个 **[启动模板](Getting-Started-AspNetCore-MVC-Template.md)**
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## 创建一个新项目
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1. 使用Visual Studio 2019 (16.4.0+)创建一个新的AspNet Core Web Application:
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2. 配置新的项目:
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3. 完成创建:
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## 安装 Volo.Abp.AspNetCore.Mvc 包
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Volo.Abp.AspNetCore.Mvc是ABP集成AspNet Core MVC的包,请安装它到你项目中:
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````
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Install-Package Volo.Abp.AspNetCore.Mvc
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````
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## 创建ABP模块
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ABP是一个模块化框架,它需要一个**启动 (根) 模块**继承自``AbpModule``:
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````C#
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using Microsoft.AspNetCore.Builder;
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using Microsoft.Extensions.Hosting;
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using Volo.Abp;
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using Volo.Abp.AspNetCore.Mvc;
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using Volo.Abp.Modularity;
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namespace BasicAspNetCoreApplication
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{
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[DependsOn(typeof(AbpAspNetCoreMvcModule))]
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public class AppModule : AbpModule
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{
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public override void OnApplicationInitialization(
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ApplicationInitializationContext context)
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{
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var app = context.GetApplicationBuilder();
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var env = context.GetEnvironment();
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if (env.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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}
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else
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{
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app.UseExceptionHandler("/Error");
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}
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app.UseStaticFiles();
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app.UseRouting();
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app.UseConfiguredEndpoints();
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}
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}
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}
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````
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``AppModule`` 是应用程序启动模块的好名称.
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ABP的包定义了这个模块类,模块可以依赖其它模块.在上面的代码中 ``AppModule`` 依赖于 ``AbpAspNetCoreMvcModule`` (模块存在于[Volo.Abp.AspNetCore.Mvc](https://www.nuget.org/packages/Volo.Abp.AspNetCore.Mvc)包中). 安装新的ABP的包后添加``DependsOn``是很常见的做法.
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我们在此模块类中配置ASP.NET Core管道,而不是Startup类中.
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### 启动类
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接下来修改启动类集成ABP模块系统:
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````C#
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using Microsoft.AspNetCore.Builder;
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using Microsoft.Extensions.DependencyInjection;
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namespace BasicAspNetCoreApplication
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{
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public class Startup
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{
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public void ConfigureServices(IServiceCollection services)
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{
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services.AddApplication<AppModule>();
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}
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public void Configure(IApplicationBuilder app)
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{
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app.InitializeApplication();
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}
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}
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}
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````
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``services.AddApplication<AppModule>()``添加了所有``AppModule``模块中定义的全部服务.
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``Configure``方法中的``app.InitializeApplication()``完成初始化并启动应用程序.
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## 运行应用程序!
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启动该应用，它将按预期运行.
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## 使用 Autofac 依赖注入框架
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虽然AspNet Core的依赖注入(DI)系统适用于基本要求,但[Autofac](https://autofac.org/)提供了属性注入和方法拦截等高级功能,这些功能是ABP执行高级应用程序框架功能所必需的.
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用Autofac取代AspNet Core的DI系统并集成到ABP非常简单.
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1. 安装 [Volo.Abp.Autofac](https://www.nuget.org/packages/Volo.Abp.Autofac) 包
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````
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Install-Package Volo.Abp.Autofac
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````
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2. 添加 ``AbpAutofacModule`` 依赖
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````C#
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[DependsOn(typeof(AbpAspNetCoreMvcModule))]
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[DependsOn(typeof(AbpAutofacModule))] // 在模块上添加依赖AbpAutofacModule
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public class AppModule : AbpModule
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{
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...
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}
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````
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3. 修改``Program.cs``以使用Autofac:
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````C#
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.Hosting;
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namespace BasicAspNetCoreApplication
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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CreateHostBuilder(args).Build().Run();
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}
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public static IHostBuilder CreateHostBuilder(string[] args) =>
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Host.CreateDefaultBuilder(args)
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.ConfigureWebHostDefaults(webBuilder =>
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{
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webBuilder.UseStartup<Startup>();
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})
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.UseAutofac(); // 添加这一行
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}
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}
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````
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## 源码
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从[此处](https://github.com/abpframework/abp-samples/tree/master/BasicAspNetCoreApplication)获取本教程中创建的示例项目的源代码.
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