使用ASP.NET Core MVC 2构建云应用

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"Pro ASP.NET Core MVC 2 (7th) - Adam Freeman" 本书"Pro ASP.NET Core MVC 2 (7th Edition)"是Adam Freeman撰写的一本权威教程，专注于使用Microsoft的最新框架ASP.NET Core MVC 2开发云就绪的Web应用程序。这本书适合那些希望深入理解和实践ASP.NET Core MVC 2技术的开发者。ASP.NET Core是一个开源且跨平台的框架，可用于构建高性能、现代化的Web应用。在ASP.NET Core MVC 2中，你将学习到： 1. **基础概念**：了解ASP.NET Core MVC架构，包括控制器、视图、模型和数据绑定等核心概念。这些组件构成了MVC模式，用于组织和管理Web应用的业务逻辑、用户界面和数据。 2. **依赖注入**：ASP.NET Core内置了强大的依赖注入容器，允许开发者轻松管理和解耦应用中的服务。学习如何注册和使用依赖注入来创建可测试和可维护的代码。 3. **路由**：理解HTTP请求如何与应用中的动作方法匹配，以及如何自定义和配置路由规则，以实现灵活的URL结构。 4. **身份验证与授权**：学习如何集成ASP.NET Core Identity，为应用添加用户认证和授权功能。这包括创建用户、角色和权限管理，以及使用Cookie中间件进行会话管理。 5. **中间件**：中间件是ASP.NET Core中的一个关键概念，它允许开发者插入自定义处理逻辑到HTTP请求管道中。理解如何创建和使用中间件来处理请求和响应，如日志记录、错误处理和跨域支持。 6. **测试**：了解如何编写单元测试和集成测试，以确保应用的质量和稳定性。ASP.NET Core支持测试驱动开发，提供了方便的测试工具和框架。 7. **部署**：学习如何将应用部署到各种平台上，包括Azure、AWS或其他云提供商，以及本地IIS服务器。理解持续集成和持续部署(CI/CD)的重要性及其实施步骤。 8. **性能优化**：探讨如何优化ASP.NET Core应用的性能，包括使用Kestrel Web服务器、响应缓存、异步编程以及性能监控。 9. **错误处理和异常处理**：掌握处理运行时错误和异常的方法，确保应用在出现问题时能优雅地处理和报告错误。 10. **API开发**：学习如何使用ASP.NET Core MVC 2构建RESTful API，包括创建控制器、处理HTTP动词和使用JSON或XML序列化。通过阅读这本书，开发者可以掌握ASP.NET Core MVC 2的精髓，从而构建出高效、安全、可扩展的Web应用。无论你是初学者还是经验丰富的开发者，此书都将提供丰富的知识和实践经验，助你在ASP.NET Core领域更上一层楼。

■ Contents

xvi

■Chapter 15: URL Routing�� 429

Preparing the Example Project ..................................................................................... 430

Creating the Model Class ....................................................................................................................431

Creating the Example Controllers ....................................................................................................... 431

Creating the View ............................................................................................................................... 432

Introducing URL Patterns ............................................................................................. 434

Creating and Registering a Simple Route .................................................................... 435

Deﬁning Default Values ................................................................................................ 437

Deﬁning Inline Default Values ............................................................................................................. 438

Using Static URL Segments .......................................................................................... 440

Deﬁning Custom Segment Variables ............................................................................ 445

Using Custom Variables as Action Method Parameters ...................................................................... 448

Deﬁning Optional URL Segments ........................................................................................................ 449

Deﬁning Variable-Length Routes ........................................................................................................ 451

Constraining Routes ..................................................................................................... 453

Constraining a Route Using a Regular Expression ..............................................................................457

Using Type and Value Constraints ....................................................................................................... 458

Combining Constraints .......................................................................................................................459

Deﬁning a Custom Constraint .............................................................................................................461

Using Attribute Routing ................................................................................................ 463

Preparing for Attribute Routing ........................................................................................................... 463

Applying Attribute Routing .................................................................................................................. 464

Applying Route Constraints ................................................................................................................467

Summary ...................................................................................................................... 468

■Chapter 16: Advanced Routing Features �� 469

Preparing the Example Project ..................................................................................... 470

Generating Outgoing URLs in Views ............................................................................. 471

Generating Outgoing Links .................................................................................................................471

Generating URLs (and Not Links) ........................................................................................................ 483

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■ Contents

xvii

Customizing the Routing System ................................................................................. 484

Changing the Routing System Conﬁguration ......................................................................................484

Creating a Custom Route Class ..........................................................................................................486

Working with Areas ...................................................................................................... 497

Creating an Area ................................................................................................................................. 497

Creating an Area Route ....................................................................................................................... 498

Populating an Area ............................................................................................................................. 499

Generating Links to Actions in Areas .................................................................................................. 502

URL Schema Best Practices ......................................................................................... 503

Making Your URLs Clean and Human-Friendly ................................................................................... 503

GET and POST: Picking the Right One ................................................................................................. 504

Summary ...................................................................................................................... 505

■Chapter 17: Controllers and Actions �� 507

Preparing the Example Project ..................................................................................... 508

Preparing the Views ............................................................................................................................ 509

Understanding Controllers ............................................................................................ 511

Creating Controllers ..................................................................................................... 512

Creating POCO Controllers ..................................................................................................................512

Using the Controller Base Class ......................................................................................................... 514

Receiving Context Data ................................................................................................ 516

Getting Data from Context Objects .....................................................................................................516

Using Action Method Parameters ....................................................................................................... 520

Producing a Response .................................................................................................. 522

Producing a Response Using the Context Object ................................................................................522

Understanding Action Results ............................................................................................................. 524

Producing an HTML Response ............................................................................................................ 526

Performing Redirections ..................................................................................................................... 535

Returning Different Types of Content .................................................................................................. 543

Responding with the Contents of Files ............................................................................................... 545

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■ Contents

xviii

Returning Errors and HTTP Codes ...................................................................................................... 547

Understanding the Other Action Result Classes ................................................................................. 549

Summary ...................................................................................................................... 550

■Chapter 18: Dependency Injection �� 551

Preparing the Example Project ..................................................................................... 552

Creating the Model and Repository .................................................................................................... 553

Creating the Controller and View ........................................................................................................ 554

Creating the Unit Test Project ............................................................................................................. 556

Creating Loosely Coupled Components ........................................................................ 556

Examining Closely Coupled Components............................................................................................ 557

Introducing ASP.NET Dependency Injection .................................................................. 564

Preparing for Dependency Injection ...................................................................................................564

Conﬁguring the Service Provider ........................................................................................................ 565

Unit Testing a Controller with a Dependency ...................................................................................... 567

Using Dependency Chains ..................................................................................................................568

Using Dependency Injection for Concrete Types ................................................................................. 570

Understanding Service Life Cycles ............................................................................... 573

Using the Transient Life Cycle............................................................................................................. 574

Using the Scoped Life Cycle ............................................................................................................... 578

Using the Singleton Life Cycle ............................................................................................................ 580

Using Action Injection ................................................................................................... 581

Using the Property Injection Attributes ......................................................................... 582

Manually Requesting an Implementation Object .......................................................... 582

Summary ...................................................................................................................... 583

■Chapter 19: Filters �� 585

Preparing the Example Project ..................................................................................... 586

Enabling SSL ....................................................................................................................................... 587

Creating the Controller and View ........................................................................................................ 587

Using Filters ................................................................................................................. 589

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■ Contents

xix

Understanding Filters ................................................................................................... 592

Getting Context Data ...........................................................................................................................593

Using Authorization Filters ........................................................................................... 594

Creating an Authorization Filter .......................................................................................................... 594

Using Action Filters ...................................................................................................... 597

Creating an Action Filter ..................................................................................................................... 598

Creating an Asynchronous Action Filter .............................................................................................. 600

Using Result Filters ...................................................................................................... 601

Creating a Result Filter ....................................................................................................................... 602

Creating an Asynchronous Result Filter .............................................................................................. 604

Creating a Hybrid Action/Result Filter ................................................................................................. 605

Using Exception Filters ................................................................................................. 607

Creating an Exception Filter ...............................................................................................................608

Using Dependency Injection for Filters ......................................................................... 610

Resolving Filter Dependencies ........................................................................................................... 610

Managing Filter Life Cycles ................................................................................................................ 615

Creating Global Filters .................................................................................................. 618

Understanding and Changing Filter Order .................................................................... 620

Changing Filter Order .........................................................................................................................622

Summary ...................................................................................................................... 623

■Chapter 20: API Controllers �� 625

Preparing the Example Project ..................................................................................... 626

Creating the Model and Repository .................................................................................................... 626

Creating the Controller and Views ...................................................................................................... 628

Understanding the Role of RESTful Controllers ............................................................ 632

Understanding the Speed Problem ..................................................................................................... 632

Understanding the Efﬁciency Problem ...............................................................................................632

Understanding the Openness Problem ............................................................................................... 633

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■ Contents

Introducing REST and API Controllers .......................................................................... 633

Creating an API Controller ................................................................................................................... 634

Testing an API Controller .....................................................................................................................639

Using the API Controller in the Browser .............................................................................................. 643

Understanding Content Formatting .............................................................................. 645

Understanding the Default Content Policy .......................................................................................... 646

Understanding Content Negotiation .................................................................................................... 647

Specifying an Action Data Format ...................................................................................................... 650

Getting the Data Format from the Route or Query String ................................................................... 651

Enabling Full Content Negotiation ...................................................................................................... 653

Receiving Different Data Formats ....................................................................................................... 654

Summary ...................................................................................................................... 655

■Chapter 21: Views �� 657

Preparing the Example Project ..................................................................................... 658

Creating a Custom View Engine ................................................................................... 659

Creating a Custom IView ....................................................................................................................661

Creating an IViewEngine Implementation ...........................................................................................662

Registering a Custom View Engine ..................................................................................................... 663

Testing the View Engine ......................................................................................................................664

Working with the Razor Engine .................................................................................... 666

Preparing the Example Project ...........................................................................................................667

Demystifying Razor Views .................................................................................................................. 669

Adding Dynamic Content to a Razor View .................................................................... 673

Using Layout Sections ........................................................................................................................ 673

Using Partial Views ............................................................................................................................. 679

Adding JSON Content to Views ........................................................................................................... 682

Conﬁguring Razor ......................................................................................................... 684

Understanding View Location Expanders ........................................................................................... 685

Summary ...................................................................................................................... 690

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