ASP.NET Core与Angular2实战指南

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"ASP.NET Core与Angular 2的学习资料" 这篇资源是关于ASP.NET Core和Angular 2的结合应用，提供了一种从零开始构建强大且动态Web应用的指南。作者Valerio De Sanctis深入浅出地介绍了这两个前沿技术的集成开发。 ASP.NET Core是微软推出的下一代Web开发框架，它具有跨平台、高性能、模块化的特点，允许开发者在Windows、Linux、macOS等操作系统上进行开发。ASP.NET Core支持多种应用程序类型，包括Web API、MVC和Web Pages，并且引入了依赖注入、中间件和Kestrel服务器等新概念，提高了开发效率和应用程序的可维护性。 Angular 2（现在被称为Angular）是Google维护的一个前端JavaScript框架，用于构建单页应用程序（SPA）。它提供了数据绑定、指令、组件、服务等功能，极大地简化了前端开发。Angular 2采用了TypeScript作为主要开发语言，增强了代码的可读性和可维护性，同时引入了新的模块系统、路由和变更检测策略。在这本书中，读者将学习如何使用ASP.NET Core作为后端服务，与Angular 2前端框架相结合，实现数据交互和API调用。内容可能涵盖以下知识点： 1. **ASP.NET Core基础知识**：理解项目结构、依赖注入容器、中间件机制以及如何创建API控制器。 2. **Angular 2入门**：学习Angular的基本概念，如模块（Module）、组件（Component）、服务（Service）、指令（Directives）和管道（Pipes）。 3. **数据绑定与模板语法**：掌握Angular中的双向数据绑定、事件处理和条件/循环模板语法。 4. **路由与导航**：了解Angular的路由系统，如何配置路由和实现页面间的导航。 5. **HTTP服务**：学习如何使用Angular的HttpClient模块与ASP.NET Core后端进行通信，发送HTTP请求。 6. **身份验证与授权**：理解如何在ASP.NET Core中实现身份验证（如JWT令牌）并集成到Angular应用中。 7. **部署与测试**：学习如何将ASP.NET Core和Angular应用部署到各种环境，以及进行单元测试和端到端测试的方法。这本书旨在帮助开发者快速上手ASP.NET Core和Angular 2的联合开发，无论你是.NET开发者想要学习前端技术，还是前端开发者想要扩展后端技能，都能从中受益。通过实践案例和详尽的解释，你将能够构建出高效、灵活的Web应用程序。

[ ix ]

Switching to SQL Server

427

Installing SQL Server 2016 Express

428

Installing SQL Server Management Studio

429

Configuring the database

429

Changing the authentication mode 431

Adding the OpenGameList database 431

Adding the OpenGameList login 431

Mapping the login to the database 432

Adding a SQL Server connection string 433

Creating an application settings file for production 434

Updating AppSettings 435

Updating external providers 436

Configuring the publishOptions 436

Checking the Startup class 437

Updating the launchSettings.json 437

Publishing our native web application

438

Creating a Publish profile

439

File System Publish profile 440

FTP Publish profile 440

Configuring IIS

442

Installing the ASP.NET Core module for IIS

442

Adding the website

443

Configuring the Application Pool

445

Firing up the engine

446

Troubleshooting

448

The Kestrel test 449

Suggested topics

450

Summary

451

Index

452

Preface

It is common knowledge among many seasoned web developers that building a website

from scratch 15 years ago was a rather simple task. To begin with, we didn’t have to deal

with the insane amount of screen resolutions brought by big-size monitors, ultra-high

resolutions, and mobile devices; we could avoid the urge of learning a lot of (back then)

"experimental" stuff such as AJAX, JSON, and XMLHttpRequest, as the established

DHTML-based techniques we already knew were more than enough to get the job done;

our simple, quick 'n' dirty JavaScript hacks could easily shine among friends and colleagues

without being embarrassed by cross-platform JS libraries such as jQuery (2006); we didn’t

have to implement time-consuming and/or knowledge-demanding features such as login

with Facebook, Sharing buttons, SEO meta tags, Twitter Cards and RSS feeds because they

were either not there yet or not so important. On top of all that, there still weren’t that many

fully-featured, great-looking, award-winning CMS solutions such as Drupal (2001),

Wordpress (2003), and Joomla (2005) to compare our results with.

Sounds pretty reasonable, right? Except it’s not. The Web is always changing, just like the

rest of the world: the complexity level of the average website is constantly increasing

because the usage is more diversified, widespread and intense, however, such growing

excitement was also a great thing for those who wanted to make a living out on building

web applications, assuming they had the guts to keep studying, communicating, and living

the blowing storm of new technologies behind these winds of change. As seasoned

developers, we should be able to cope with such simple, yet inevitable truth, adapting

ourselves before and better than our customers instead of being trampled by their

increasing demands.

The main purpose of this book is to demonstrate that is still possible to develop great web

applications from scratch, providing that we use the proper tools and have the patience to

understand how we can blend them together to achieve what we want. Luckily enough, the

insane amount of additional work required nowadays can be mitigated by a lot of powerful

frameworks that make their way through the development scene: we’re talking of server-

side runtime environments like ASP.NET and Node.js and also of many client-side

frameworks such as Bootstrap, jQuery, React, AngularJS and Angular 2. We chose to focus

on two of them – ASP.NET Core to cover the server-side aspects, Angular 2 to deal with the

client-side not only for their stunning set of features and elegant design, but also because

they happen to have something revolutionary in common: they are both a complete rewrite

of their massively-popular previous installments, who played a leading role in their

respective field.

Preface

[ 2 ]

Why a development team should do that? What’s the purpose of reinvent their own widely-

acknowledged wheel despite it still rocks? The answer most likely lies in what we said

earlier: in an ever-changing world such as the one we’re living in we need to be humble and

wise enough to keep moving forward, embracing – sometimes even enforcing – the iterative

processes required to forge better tools for building a more complex, yet also more enticing

World Wide Web.

The guys behind ASP.NET and Angular were brave enough to accept the challenge: after a

few months of unstable releases and breaking interface changes it definitely seems that their

choice was worth the effort, as they’re about to hit a decisive score.

What about you?

What this book covers

Chapter 1, Getting Ready, introduces the ASP.NET Core and Angular 2 frameworks,

explaining how they can effectively be used to build a feature-rich, modern SPA. It then

enumerates the core aspects of a common SPA project, which will be addressed throughout

the following chapters. The last part covers the required steps for setting up a .NET Core

Web Application project, together with its required packages and components, up to a

buildable and running app skeleton.

Chapter 2, ASP.NET Controllers and Server-Side Routes, explains how we can interchange

Json data between a server-side .NET Controller and a client-side Angular 2 Component.

The reader will learn how to handle the HTTP request-response cycle and also how to

configure the improved routing logic built upon the .NET Core pipeline.

Chapter 3, Angular 2 Components and Client-Side Routing, focuses about the client-side

aspects of our SPA: the reader will learn how to fetch JSON objects with Angular 2 core

classes and show the retrieved data on screen using the Angular 2 Template Syntax. We will

also explain how the client-side routing works in a SPA and what we need do to implement

a viable routing pattern for our project using the PathLocationStrategy.

Chapter 4, The Data Model, is dedicated to the building of a proper, DBMS-based Data

Model using Entity Framework Core. The reader will learn how to install and properly

configure the required EF Core packages: we will also explain how to properly implement

them to build a list of Entities and persist them into a stable Database structure using the

Code-First approach.

Preface

[ 3 ]

Chapter 5, Persisting Changes, will explain how to update the application code to make full

usage of the EF Core entities defined in Chapter 4, The Data Model. The reader will learn

how to fetch and persist the application data by using the Database instead of the sample

mocking methods.

Chapter 6, Applying Styles, will introduce LESS, a powerful dynamic stylesheet language

that can be compiled into CSS. After a brief overview of the LESS language syntax, the

reader will learn how to add, implement and compile LESS scripts within the application

project to greatly improve the front-end UI.

Chapter 7, Authentication and Authorization, will guide the reader through the most relevant

auth-related concepts for building a web application. The reader will learn how to

implement a sample Token-based authentication provider and also how to properly add

and configure it throughout the existing Entity Framework entities, .NET core services and

HTTP middleware list.

Chapter 8, Third-Party Authentication and External Providers, further expands the

authentication and authorization topics introducing OpenIddict, an open-source .NET

library based upon the AspNet OpenID Connect Server (ASOS) that can be used to handle

internal and external auth providers. The reader will learn how to install OpenIddict and

configure it to support Facebook, Google and Twitter authentication.

Chapter 9, User Registration and Account Edit, is dedicated to account-related features such

as user registration and edit account mechanism. The reader will learn how to properly

handle such requests by implementing a dedicated .NET Core Controller together with a

versatile Angular 2 Model-Driven form.

Chapter 10, Finalization and Deployment, describes the most common tasks to publish a

potentially shippable web application onto a production server. The reader will learn how

to replace its localDb instance with an external SQL Server, create FTP and FileSystem

publishing profiles, upload their compiled application to an external server and configure it

to run under IIS using the .NET Core Windows Server Hosting bundle; he will also learn

how to deal with the most common issues with the help of some .NET Core specific

troubleshooting techniques.

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