精通ASP.NET Core MVC 2.0：云开发实战指南

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《Pro ASP.NET Core MVC 2：第七版》是一本深度探讨微软最新框架ASP.NET Core MVC 2.0的实战指南。作者Adam Freeman以其丰富的经验，引领读者从基础概念入手，逐步深入理解MVC开发的核心理念，同时体验该框架在实际项目中的应用。本书旨在帮助开发者构建云就绪的Web应用程序，充分利用ASP.NET Core 2.0带来的革新特性。 ASP.NET Core MVC 2.0是一个对使用微软平台的Web开发者来说具有革命性的变化。它强调的是清晰的架构、设计模式以及可测试性，不再试图隐藏网络工作原理。书中首先会介绍MVC开发的基本概念，包括新功能的详细介绍，让读者通过实践掌握框架的使用方法。本书涵盖的主题广泛，包括但不限于以下要点： 1. **MVC架构解析**：解释什么是Model-View-Controller（MVC）模式，其在Web开发中的作用以及在ASP.NET Core 2.0中的实现。 2. **Clean Architecture**：讨论如何利用干净架构原则来构建可维护、可扩展的系统，降低技术债务。 3. **设计模式应用**：介绍适用于ASP.NET Core MVC 2.0的最佳实践，如依赖注入、策略模式、工厂模式等。 4. **新特性介绍**：详细讲解ASP.NET Core 2.0相对于早期版本的新特性和改进，如路由、视图引擎、中间件等。 5. **实战项目演练**：通过实例项目展示如何搭建、配置和优化应用程序，包括身份验证、错误处理、API设计等。 6. **测试与调试**：探讨单元测试、集成测试和端到端测试的技巧，以及如何利用ASP.NET Core的内置测试工具。 7. **云部署与性能优化**：指导读者如何将应用部署到云端，以及如何进行性能调优，确保应用在生产环境中的高效运行。 8. **适应未来技术发展**：介绍ASP.NET Core MVC的发展趋势和可能的扩展性，帮助读者保持技术栈的前瞻性。作为一本专业书籍，《Pro ASP.NET Core MVC 2》不仅适合初学者快速上手，也适合经验丰富的开发者进一步提升技能。通过阅读本书，读者不仅能掌握ASP.NET Core MVC 2.0的核心技术，还能培养出一套现代Web开发的最佳实践。

■ 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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