Embedded Files
COURS asp.NET CORE
Configuration de l’application
La classe Startup configure des services et le pipeline de requête de l’application.
Classe Startup
Les applications ASP.NET Core utilisent une classe Startup, appelée Startup par convention. La classe Startup :
Inclut éventuellement une méthode ConfigureServices pour configurer les services de l’application. Un service est un composant réutilisable qui fournit une fonctionnalité d’application. Les services sont enregistrés dans ConfigureServices et utilisés dans l’ensemble de l’application via l' injection de dépendances (di) ou ApplicationServices .
Inclut une méthode Configure pour créer le pipeline de traitement des requêtes de l’application.
Ajoutez le service MVC : services.AddControllersWithViews();
public void ConfigureServices(IServiceCollection services)
{
services.AddControllersWithViews();// service MVC
}
2. Ajoutez les différentes pipeline ou les middleware, l’ordre est important
Exiger HTTPS
Nous vous recommandons d’utiliser les applications Web de production ASP.NET Core :
Intergiciel (middleware) de redirection HTTPs ( UseHttpsRedirection ) pour rediriger les requêtes http vers HTTPS.
Intergiciel (middleware) HSTS (UseHsts) pour envoyer des en-têtes HSTS (protocole de sécurité de transport strict) aux clients.
// dans le fichier startup
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseHttpsRedirection(); // Url HTTp
app.UseStaticFiles(); // css javascript
app.UseRouting();
Routage vers les actions du contrôleur dans ASP.NET Core
Routage vers les actions du contrôleur dans ASP.NET Core
Configurer l’itinéraire conventionnel
Configurer l’itinéraire conventionnel
Startup.Configure a généralement un code similaire à ce qui suit lors de l’utilisation du routage conventionnel:
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
À l’intérieur de l’appel à UseEndpoints , MapControllerRoute est utilisé pour créer un itinéraire unique. L’itinéraire unique est nommé default route. La plupart des applications avec contrôleurs et vues utilisent un modèle de routage similaire à l' default itinéraire. Les API REST doivent utiliser le routage d’attributs.
Le modèle de routage "{controller=Home}/{action=Index}/{id?}" :
Créer une API web avec ASP.NET Core MVC
Créer une API web avec ASP.NET Core MVC
Ajouter les dossiers : Models, Controllers,Views, Repository et ViewModels
Dans le dossier Models, ajoutez deux classes Book et Category
Dans le dossier Repository ajoutez
interface IBookRepository -> après la création ajouter le mot clé public exemple public Interface IBookRepository {}
inerface ICategotyRepository -> après la création ajouter le mot clé public exemple public Interface ICategoryRepository {}
class BookRepository qui implémente l’interface IBookRepository
class CategoryRepository qui implémente l’interface ICategoryRepository
Ajouter les services dans la fonction ConfigureServices
services.AddScoped<IBookRepository, BookRepository>();
services.AddScoped<ICategoryRepository, CategoryRepository>();
Migration in Entity Framework Core
Migration in Entity Framework Core
https://www.entityframeworktutorial.net/efcore/entity-framework-core-migration.aspx
Sélectionner votre projet click-droit -> gérer les packages NUGET
Installer :
dans le appsetting.json
"ConnectionStrings": {
"DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=BookASPCore;Trusted_Connection=True;MultipleActiveResultSets=true"
},
Ajouter dans le dossier Models AppDbContext qui hérite de la classe DbContext
public class AppDbContext :DbContext
{
public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
{
}
public DbSet<Book> Books { get; set; }
public DbSet<Category> Categories { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<Category>().HasData(
new Category { CategoryId = 1, CategoryName = "Big data ", Description = "books of big data" }
);
modelBuilder.Entity<Category>().HasData(
new Category { CategoryId = 2, CategoryName = "Database ", Description = "books of database" }
);
modelBuilder.Entity<Category>().HasData(
new Category { CategoryId = 3, CategoryName = "Front-End ", Description = "books of Front-End" }
);
modelBuilder.Entity<Category>().HasData(
new Category { CategoryId = 4, CategoryName = "Back-End ", Description = "books of Back-End" }
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 1,
Name = "Big Data For Dummies",
LongDescription = "Big data management is one of the major challenges facing business, industry, and not-for-profit organizations. Data sets such as customer transactions for a mega-retailer, weather patterns monitored by meteorologists, or social network activity can quickly outpace the capacity of traditional data management tools. If you need to develop or manage big data solutions, you’ll appreciate how these four experts define, explain, and guide you through this new and often confusing concept. You’ll learn what it is, why it matters, and how to choose and implement solutions that work.",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/51p6wBow%2B3L._SX389_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "Big data management is one of the major challenges facing business, industry, and not-for-profit organizations",
Price = 98,
CategoryId = 1
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 2,
Name = "Big Data",
LongDescription = "Bernard Marr’s Data Strategy is a must-have guide to creating a robust data strategy. Explaining how to identify your strategic data needs, what methods to use to collect the data and, most importantly, how to translate your data into organizational insights for improved business decision-making and performance, this is essential reading for anyone aiming to leverage the value of their business data and gain competitive advantage. Packed with case studies and real-world examples, advice on how to build data competencies in an organization and crucial coverage of how to ensure your data doesn’t become a liability, Data Strategy will equip any organization with the tools and strategies it needs to profit from big data, analytics and the Internet of Things.",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/41JjodHnKHL._SX331_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "Bernard Marr’s Data Strategy is a must-have guide to creating a robust data strategy",
Price = 120.90M,
CategoryId = 1
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 3,
Name = "Database Engineering",
LongDescription = "his book has been an evolving dream of ours for about five years. Laine came to the DBA role without any formal technical training. She was neither a software engineer nor a sysadmin; rather, she chose to develop a technical career after leaving music and theater. With this kind of background, the ideas of structure, harmony, counterpoint, and orchestration found in databases called to her.",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/51UvR3a63OL._SX379_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "This book has been an evolving dream of ours for about five years. Laine came to the DBA role without any formal technical training.",
Price = 66,
CategoryId = 2
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 4,
Name = "Data-Intensive",
LongDescription = "Data is at the center of many challenges in system design today. Difficult issues need to be figured out, such as scalability, consistency, reliability, efficiency, and maintainability. In addition, we have an overwhelming variety of tools, including relational databases, NoSQL datastores, stream or batch processors, and message brokers. What are the right choices for your application? How do you make sense of all these buzzwords?.",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/51gP9mXEqWL._SX379_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "The Big Ideas Behind Reliable, Scalable, and Maintainable Systems ",
Price = 66,
CategoryId = 2
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 5,
Name = "Angular",
LongDescription = "This book is for anyone who is looking to get started with Angular (2.0 and onward), whether as a side project, as an additional tool, or for their main work. It is expected that readers are comfortable with JavaScript and HTML before starting this book, but a basic knowledge of JavaScript should be sufficient to learn Angular. Knowledge of AngularJS 1.0 is not needed or expected.We will also use TypeScript, which is the recommended way of developing in Angular, but a preliminary knowledge is sufficient to read this book.We will take it step by step, so relax and have fun learning with me..",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/51gP9mXEqWL._SX379_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "The Big Ideas Behind Reliable, Scalable, and Maintainable Systems ",
Price = 66,
CategoryId = 3
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 6,
Name = "Learning React",
LongDescription = "f you want to learn how to build efficient user interfaces with React, this is your book. Authors Alex Banks and Eve Porcello show you how to create UIs with this small JavaScript library that can deftly display data changes on large-scale, data-driven websites without page reloads. Along the way, you’ll learn how to work with functional programming and the latest ECMAScript features.",
ImageUrl = "https://images-eu.ssl-images-amazon.com/images/I/51Q43WRXJzL.jpg",
InStock = true,
ShortDescription = "Developed by Facebook, and used by companies including Netflix, Walmart, and The New York Times for large parts of their web interfaces ",
Price = 89,
CategoryId = 3
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 7,
Name = "Pro C# 7",
LongDescription = "This essential classic title provides a comprehensive foundation in the C# programming language and the frameworks it lives in. Now in its 8th edition, you’ll find all the very latest C# 7.1 and .NET 4.7 features here, along with four brand new chapters on Microsoft’s lightweight, cross-platform framework, .NET Core, up to and including .NET Core 2.0. Coverage of ASP.NET Core, Entity Framework (EF) Core, and more, sits alongside the latest updates to .NET, including Windows Presentation Foundation (WPF), Windows Communication Foundation (WCF), and ASP.NET MVC..",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/413Z89zzezL._SX348_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "Dive in and discover why Pro C# has been a favorite of C# developers worldwide for over 15 years",
Price = 55.60M,
CategoryId = 4
}
);
modelBuilder.Entity<Book>().HasData(
new Book
{
BookId = 8,
Name = "Learning Node.js",
LongDescription = "Learning Node.js Development is a practical, project-based book that provides you with all you need to get started as a Node.js developer. Node is a ubiquitous technology on the modern web, and an essential part of any web developers' toolkit. If you are looking to create real-world Node applications, or you want to switch careers or launch a side project to generate some extra income, then you're in the right place. This book has been written around a single goal—turning you into a professional Node developer capable of developing, testing, and deploying real-world production applications.",
ImageUrl = "https://images-na.ssl-images-amazon.com/images/I/41NGBmeH1uL._SX403_BO1,204,203,200_.jpg",
InStock = true,
ShortDescription = "Learning Node.js Development: Learn the fundamentals of Node.js, and deploy and test Node.js applications on the web",
Price = 98,
CategoryId = 4
}
);
}
}
Ensuite dans le startUp, ajoutez un services
services.AddDbContext<AppDbContext>(options =>
options.UseSqlServer(_configuration.GetConnectionString("DefaultConnection")));
Ajouter constructeur dans le startup
private readonly IConfiguration _configuration;
public Startup(IConfiguration configuration)
{
_configuration = configuration;
}
Dans la console , pour créer la base de données
Affichage -> autres fenêtres-> Console de gestionnaire de package
1- add-migration createINITDB
2- update-database
Affichage -> Explorateur d'objets SQL SERVER
Créer un autre dossier ViewModels
Ajouter une classe BookViewModel , ajouter l'attribut Books
public class BookListViewModel
{
public IEnumerable<Book> Books { get; set; }
}
Dans le dossier Controllers ajoutez une fichier de type controller vide
public class BookController : Controller
{
private readonly IBookRepository _bookRepository;
private readonly ICategoryRepository _categoryRepository;
public BookController(IBookRepository bookRepository, ICategoryRepository categoryRepository)
{
_bookRepository = bookRepository;
_categoryRepository = categoryRepository;
}
public IActionResult List()
{
// var books = _bookRepository.GetAllBooks();
var bookListViewModel = new BookListViewModel();
bookListViewModel.Books = _bookRepository.GetAllBooks().OrderBy(b=> b.Price).Take(4);
return View(bookListViewModel);
}
}
Dans le dossier Views ,
Le langage Razor c’est une syntaxe de balisage qui nous permet d’inclure du c# dans html
créer un dossier Book
Créer un fichier le même nom que l’action List de type vue razor
@model BookListViewModel @foreach (var book in Model.Books) { <div class="col-sm-4 col-lg-4 col-md-4"> <div class="thumbnail"> <h2> <a>@book.Name</a> </h2> <img src="@book.ImageUrl" alt="" width="150" height="400"> <div class="caption"> <p>@book.ShortDescription</p> <h3 class="pull-right">@book.Price.ToString("c")</h3> </div> </div> </div> }
Le travail à faire
créer le controller ContactController
action : List
qui permet d’afficher les contacts .
action new
un formulaire d’inscription qui permet d’inscrire un contact dans la table contact
public class Contact
{ [Key]
public int ContactId { get; set; }
// user ID from AspNetUser table.
public string OwnerID { get; set; }
public string Name { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
[DataType(DataType.EmailAddress)]
public string Email { get; set; }
}
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