Hướng dẫn asp.ne core

Question

In the ASP.NET Core series, we are going to go through a detailed example of how to use .NET Core, Angular, and MySQL for ASP.NET Core web application development.

If someone asks: “Why this combination of technologies”, without getting in too much detail, the answer would be:

The technologies are free of charge
Applications can be deployed on both Windows and Linux OS
Production-grade performance
… And because we can 🙂

What are we going to do in this guide?

We are going to use MySQL as our database. First, we are going to install the MySQL server, create tables, and populate them with some data.

Then, we are going to step into the world of ASP.NET Core Web API development. It is going to be our server-side part of the application. As we progress through the ASP.NET Core series, we are going to use repository pattern, generics, LINQ, entity framework core, create more projects and services to demonstrate some good practices. Overall we will try to write the application as we would in the real-time environment. Furthermore, you will learn about ASP.NET Core architecture and code organization, so you can make it more readable and maintainable.

There are three approaches to using Entity Framework: Database First, Code First, and Model First. In this tutorial, we are going to use the Database First approach, because we want to create our database prior to typing the .NET code. This approach is good when you know the structure of your database beforehand, and we get to use the visual editor which makes the creation of relationships between tables much easier.

After we finish the ASP.NET Core series, we are going to introduce three of the most popular client frameworks (Angular, React, or Vue.js) to consume our Web API. This will result in creating a full-stack web application.

In the end, we are going to publish our app on both Windows and Linux OS, and finish strong by completing the entire development cycle.

Prerequisites:

MySQL server installed on your machine (installation guide)
.NET SDK
Visual Studio 2019 if you are using .NET 5 (installation guide) or Visual Studio 2022 for .NET 6

Background

Basic C# knowledge
Intermediate C# knowledge

Basic ASP.NET Core Web API:

Creating a Database for Our Project
Basic Code Preparations
Custom Logging in ASP.NET Core
Repository Pattern with Entity Framework Core
Using Repository for GET Requests
Using Repository for POST, PUT and DELETE Requests

Advanced ASP.NET Core Web API Concepts:

Paging
Filtering
Searching
Sorting
Data Shaping
HATEOAS

ASP.NET Core Application Configuration:

Basic Configuration Concepts
Options Pattern
Options Validation
Configuration Providers
Creating a Custom Configuration Provider
Securing Sensitive Data Locally
Azure Key Vault- Securing Data in Production

Consuming ASP.NET Core Web API:

Consuming ASP.NET Core Web API With Angular
Blazor WebAssembly HttpClient – Consuming a Web API
A Few Great Ways to Consume RESTful API in C#
Using C# and DalSoft.RestClient to Consume Any REST API

Hosting ASP.NET Core Web API on different platforms:

Hosting ASP.NET Core Web API on Windows with IIS

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Get started with ASP.NET Core MVC

Bài viết
08/30/2022
14 phút để đọc

Trong bài viết này

By Rick Anderson

This tutorial teaches ASP.NET Core MVC web development with controllers and views. If you're new to ASP.NET Core web development, consider the Razor Pages version of this tutorial, which provides an easier starting point. See Choose an ASP.NET Core UI, which compares Razor Pages, MVC, and Blazor for UI development.

This is the first tutorial of a series that teaches ASP.NET Core MVC web development with controllers and views.

At the end of the series, you'll have an app that manages and displays movie data. You learn how to:

Create a web app.
Add and scaffold a model.
Work with a database.
Add search and validation.

View or download sample code (how to download).

Prerequisites

Create a web app

Visual Studio
Visual Studio Code
Visual Studio for Mac

Start Visual Studio and select Create a new project.
In the Create a new project dialog, select ASP.NET Core Web App (Model-View-Controller) > Next.
In the Configure your new project dialog, enter MvcMovie for Project name. It's important to name the project MvcMovie. Capitalization needs to match each namespace when code is copied.
Select Next.
In the Additional information dialog, select .NET 6.0 (Long-term support).
Select Create.

For alternative approaches to create the project, see Create a new project in Visual Studio.

Visual Studio uses the default project template for the created MVC project. The created project:

Is a working app.
Is a basic starter project.

The tutorial assumes familiarity with VS Code. For more information, see Getting started with VS Code and Visual Studio Code help.

Open the integrated terminal.
Change to the directory (cd) that will contain the project.
Run the following command:
```
dotnet new mvc -o MvcMovie
code -r MvcMovie
```
- If a dialog box appears with Required assets to build and debug are missing from 'MvcMovie'. Add them?, select Yes
- dotnet new mvc -o MvcMovie: Creates a new ASP.NET Core MVC project in the MvcMovie folder.
- code -r MvcMovie: Loads the MvcMovie.csproj project file in Visual Studio Code.

For Visual Studio for Mac, see the .NET 5 version of this tutorial.

Run the app

Visual Studio
Visual Studio Code
Visual Studio for Mac

Select Ctrl+F5 to run the app without the debugger.
Visual Studio displays the following dialog when a project is not yet configured to use SSL:
Select Yes if you trust the IIS Express SSL certificate.

The following dialog is displayed:
Select Yes if you agree to trust the development certificate.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.

Visual Studio runs the app and opens the default browser.

The address bar shows localhost:port# and not something like example.com. The standard hostname for your local computer is localhost. When Visual Studio creates a web project, a random port is used for the web server.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

You can launch the app in debug or non-debug mode from the Debug menu:

You can debug the app by selecting the MvcMovie button in the toolbar:

The following image shows the app:

Select Ctrl+F5 to run without the debugger.
- Trust the HTTPS development certificate by running the following command:
```
dotnet dev-certs https --trust
```
  The preceding command doesn't work on Linux. See your Linux distribution's documentation for trusting a certificate.
  The preceding command displays the following dialog, provided the certificate was not previously trusted:
- Select Yes if you agree to trust the development certificate.
  See Trust the ASP.NET Core HTTPS development certificate for more information.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.
Visual Studio Code:
- Starts Kestrel
- Launches a browser.
- Navigates to https://localhost:5001.
The address bar shows localhost:port:5001 and not something like example.com. The standard hostname for your local computer is localhost. Localhost only serves web requests from the local computer.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

For Visual Studio for Mac, see the .NET 5 version of this tutorial.

Visual Studio
Visual Studio Code
Visual Studio for Mac

Visual Studio help

Learn to debug C# code using Visual Studio
Introduction to the Visual Studio IDE

Visual Studio Code help

Getting started
Debugging
Integrated terminal
Keyboard shortcuts
- macOS keyboard shortcuts
- Linux keyboard shortcuts
- Windows keyboard shortcuts

Visual Studio for Mac help

Visual Studio for Mac Tour
Introducing Visual Studio for Mac

In the next tutorial in this series, you learn about MVC and start writing some code.

This tutorial teaches ASP.NET Core MVC web development with controllers and views. If you're new to ASP.NET Core web development, consider the Razor Pages version of this tutorial, which provides an easier starting point. See Choose an ASP.NET Core UI, which compares Razor Pages, MVC, and Blazor for UI development.

This is the first tutorial of a series that teaches ASP.NET Core MVC web development with controllers and views.

At the end of the series, you'll have an app that manages and displays movie data. You learn how to:

Create a web app.
Add and scaffold a model.
Work with a database.
Add search and validation.

View or download sample code (how to download).

Prerequisites

Create a web app

Visual Studio
Visual Studio Code
Visual Studio for Mac

Start Visual Studio and select Create a new project.
In the Create a new project dialog, select ASP.NET Core Web Application > Next.
In the Configure your new project dialog, enter MvcMovie for Project name. It's important to name the project MvcMovie. Capitalization needs to match each namespace matches when code is copied.
Select Create.
In the Create a new ASP.NET Core web application dialog, select:
- .NET Core and ASP.NET Core 5.0 in the dropdowns.
- ASP.NET Core Web App (Model-View-Controller).
- Create.

For alternative approaches to create the project, see Create a new project in Visual Studio.

Visual Studio used the default project template for the created MVC project. The created project:

Is a working app.
Is a basic starter project.

The tutorial assumes familiarity with VS Code. For more information, see Getting started with VS Code and Visual Studio Code help.

Open the integrated terminal.
Change to the directory (cd) that will contain the project.
Run the following command:
```
dotnet new mvc -o MvcMovie
code -r MvcMovie
```
- If a dialog box appears with Required assets to build and debug are missing from 'MvcMovie'. Add them?, select Yes
- dotnet new mvc -o MvcMovie: Creates a new ASP.NET Core MVC project in the MvcMovie folder.
- code -r MvcMovie: Loads the MvcMovie.csproj project file in Visual Studio Code.

Select File > New Solution.
In Visual Studio for Mac earlier than version 8.6, select .NET Core > App > Web Application (Model-View-Controller) > Next. In version 8.6 or later, select Web and Console > App > Web Application (Model-View-Controller) > Next.
In the Configure your new Web Application dialog:
- Confirm that Authentication is set to No Authentication.
- If an option to select a Target Framework is presented, select the latest 5.x version.
- Select Next.
Name the project MvcMovie, and then select Create.

Run the app

Visual Studio
Visual Studio Code
Visual Studio for Mac

Select Ctrl+F5 to run the app without the debugger.
Visual Studio displays the following dialog when a project is not yet configured to use SSL:
Select Yes if you trust the IIS Express SSL certificate.

The following dialog is displayed:
Select Yes if you agree to trust the development certificate.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.
Visual Studio:
- Starts IIS Express.
- Runs the app.
The address bar shows localhost:port# and not something like example.com. The standard hostname for your local computer is localhost. When Visual Studio creates a web project, a random port is used for the web server.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

You can launch the app in debug or non-debug mode from the Debug menu item:

You can debug the app by selecting the IIS Express button

The following image shows the app:

Select Ctrl+F5 to run without the debugger.
- Trust the HTTPS development certificate by running the following command:
```
dotnet dev-certs https --trust
```
  The preceding command doesn't work on Linux. See your Linux distribution's documentation for trusting a certificate.
  The preceding command displays the following dialog, provided the certificate was not previously trusted:
- Select Yes if you agree to trust the development certificate.
  
  See Trust the ASP.NET Core HTTPS development certificate for more information.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.
Visual Studio Code:
- Starts Kestrel
- Launches a browser.
- Navigates to https://localhost:5001.
The address bar shows localhost:port:5001 and not something like example.com. The standard hostname for your local computer is localhost. Localhost only serves web requests from the local computer.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

Select Run > Start Without Debugging to launch the app.
Visual Studio for Mac:
- Starts Kestrel server.
- Launches a browser.
- Navigates to http://localhost:port, where port is a randomly chosen port number.
Visual Studio for Mac displays the following popup:
Select Yes if you trust the development certificate.
The following dialog is displayed:
Enter your password and select OK
Select Yes if you agree to trust the development certificate.
See Trust the ASP.NET Core HTTPS development certificate for more information
The address bar shows localhost:port# and not something like example.com. The standard hostname for your local computer is localhost. When Visual Studio creates a web project, a random port is used for the web server.

You can launch the app in debug or non-debug mode from the Run menu.

The following image shows the app:

Visual Studio
Visual Studio Code
Visual Studio for Mac

Visual Studio help

Learn to debug C# code using Visual Studio
Introduction to the Visual Studio IDE

Visual Studio Code help

Getting started
Debugging
Integrated terminal
Keyboard shortcuts
- macOS keyboard shortcuts
- Linux keyboard shortcuts
- Windows keyboard shortcuts

Visual Studio for Mac help

Visual Studio for Mac Tour
Introducing Visual Studio for Mac

In the next part of this tutorial, you learn about MVC and start writing some code.

This tutorial teaches ASP.NET Core MVC web development with controllers and views. If you're new to ASP.NET Core web development, consider the Razor Pages version of this tutorial, which provides an easier starting point. See Choose an ASP.NET Core UI, which compares Razor Pages, MVC, and Blazor for UI development.

This is the first tutorial of a series that teaches ASP.NET Core MVC web development with controllers and views.

At the end of the series, you'll have an app that manages and displays movie data. You learn how to:

Create a web app.
Add and scaffold a model.
Work with a database.
Add search and validation.

View or download sample code (how to download).

Prerequisites

Create a web app

Visual Studio
Visual Studio Code
Visual Studio for Mac

From the Visual Studio, select Create a new project.
Select ASP.NET Core Web Application > Next.
Name the project MvcMovie and select Create. It's important to name the project MvcMovie so when you copy code, the namespace will match.
Select Web Application(Model-View-Controller). From the dropdown boxes, select .NET Core and ASP.NET Core 3.1, then select Create.

Visual Studio used the default project template for the created MVC project. The created project:

Is a working app.
Is a basic starter project.

The tutorial assumes familiarity with VS Code. For more information, see Getting started with VS Code and Visual Studio Code help.

Open the integrated terminal.
Change directories (cd) to a folder that will contain the project.
Run the following command:
```
dotnet new mvc -o MvcMovie
code -r MvcMovie
```
- A dialog box appears with Required assets to build and debug are missing from 'MvcMovie'. Add them?, select Yes.
- dotnet new mvc -o MvcMovie: Creates a new ASP.NET Core MVC project in the MvcMovie folder.
- code -r MvcMovie: Loads the MvcMovie.csproj project file in Visual Studio Code.

Select File > New Solution.
In Visual Studio for Mac earlier than version 8.6, select .NET Core > App > Web Application (Model-View-Controller) > Next. In version 8.6 or later, select Web and Console > App > Web Application (Model-View-Controller) > Next.
In the Configure your new Web Application dialog:
- Confirm that Authentication is set to No Authentication.
- If an option to select a Target Framework is presented, select the latest 3.x version.
- Select Next.
Name the project MvcMovie, and then select Create.

Run the app

Visual Studio
Visual Studio Code
Visual Studio for Mac

Select Ctrl+F5 to run the app without debugging.
Visual Studio displays the following dialog when a project is not yet configured to use SSL:
Select Yes if you trust the IIS Express SSL certificate.

The following dialog is displayed:
Select Yes if you agree to trust the development certificate.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.
Visual Studio:
- Starts IIS Express.
- Runs the app.
The address bar shows localhost:port# and not something like example.com. The standard hostname for your local computer is localhost. When Visual Studio creates a web project, a random port is used for the web server.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

You can launch the app in debug or non-debug mode from the Debug menu item:

You can debug the app by selecting the IIS Express button

The following image shows the app:

Select Ctrl+F5 to run the app without debugging.
- Trust the HTTPS development certificate by running the following command:
```
dotnet dev-certs https --trust
```
  The preceding command doesn't work on Linux. See your Linux distribution's documentation for trusting a certificate.
  The preceding command displays the following dialog, provided the certificate was not previously trusted:
- Select Yes if you agree to trust the development certificate.
  See Trust the ASP.NET Core HTTPS development certificate for more information.
For information on trusting the Firefox browser, see Firefox SEC_ERROR_INADEQUATE_KEY_USAGE certificate error.
Visual Studio Code:
- Starts Kestrel
- Launches a browser.
- Navigates to https://localhost:5001.
The address bar shows localhost:port:5001 and not something like example.com. The standard hostname for your local computer is localhost. Localhost only serves web requests from the local computer.

Launching the app without debugging by selecting Ctrl+F5 allows you to:

Make code changes.
Save the file.
Quickly refresh the browser and see the code changes.

Select Run > Start Without Debugging to launch the app.
Visual Studio for Mac: starts Kestrel server, launches a browser, and navigates to http://localhost:port, where port is a randomly chosen port number.

Visual Studio for Mac displays the following popup:

Select Yes if you trust the development certificate.

The following dialog is displayed:

Enter your password and select OK

Select Yes if you agree to trust the development certificate.

See Trust the ASP.NET Core HTTPS development certificate for more information

The address bar shows localhost:port# and not something like example.com. The standard hostname for your local computer is localhost. When Visual Studio creates a web project, a random port is used for the web server. When you run the app, you'll see a different port number.

You can launch the app in debug or non-debug mode from the Run menu.

The following image shows the app:

Visual Studio
Visual Studio Code
Visual Studio for Mac

Visual Studio help

Learn to debug C# code using Visual Studio
Introduction to the Visual Studio IDE

Visual Studio Code help

Getting started
Debugging
Integrated terminal
Keyboard shortcuts
- macOS keyboard shortcuts
- Linux keyboard shortcuts
- Windows keyboard shortcuts

Visual Studio for Mac help

Visual Studio for Mac Tour
Introducing Visual Studio for Mac

In the next part of this tutorial, you learn about MVC and start writing some code.

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Hướng dẫn asp.ne core

What are we going to do in this guide?

Prerequisites:

Background

Basic ASP.NET Core Web API:

Advanced ASP.NET Core Web API Concepts:

ASP.NET Core Application Configuration:

Consuming ASP.NET Core Web API:

Hosting ASP.NET Core Web API on different platforms:

Get started with ASP.NET Core MVC

Trong bài viết này

Prerequisites

Create a web app

Run the app

Visual Studio help

Visual Studio Code help

Visual Studio for Mac help

Prerequisites

Create a web app

Run the app

Visual Studio help

Visual Studio Code help

Visual Studio for Mac help

Prerequisites

Create a web app

Run the app

Visual Studio help

Visual Studio Code help

Visual Studio for Mac help

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