ASP.NET CORE基础教程

    public class TestController : Controller { } [Controller] public class Test : Controller { }

        public IActionResult Hello() { // Query var name = Request.Query["name"]; // QueryString var query = Request.QueryString.Value; // Form var username = Request.Form["username"]; // Cookies var cookie = Request.Cookies["item"]; // Headers var headers = Request.Headers["salt"]; return Content("Hello"); }

        public IActionResult Hello() { // byte[] HttpContext.Session.Set("byte", new byte[] { 1, 2, 3, 4, 5 }); var bytes = HttpContext.Session.Get("byte"); // string HttpContext.Session.SetString("name", "tom"); var name = HttpContext.Session.GetString("name"); // int HttpContext.Session.SetInt32("id", 20); var id = HttpContext.Session.GetInt32("id"); HttpContext.Session.Remove("name"); HttpContext.Session.Clear(); return Content("Hello"); }

        public IActionResult Hello(RequestModel request,int? age) { // 查询字符串 var test = Request.Query["test"]; // 简单类型 var userAge = age; // 自定义类型 var name = request.Name; return Content("Hello"); } public class RequestModel { public string Name { get; set; } }

    /// 
 /// 拍卖师控制类 /// 
 [NonController] public class AuctionController { }

        public IActionResult Say( [FromForm]string name, [FromQuery]int age, [FromHeader] string salt, [FromBody] string content ) { return View(); }

    [Controller] public class Test : Controller { private readonly IMemoryCache _cache; public Test(IMemoryCache memoryCache) { this._cache = memoryCache; } public IActionResult ReadCache() { _cache.Set("name","tom"); _cache.Get("name"); _cache.Set("age",30); _cache.Get("age"); User tom = new User(){ Name = "admin",Pwd = "123456"}; _cache.Set("user",tom); _cache.Get("user"); return Content("ok"); } } public class User { public string Name { get; set; } public string Pwd { get; set; } }

  public abstract class ValidationAttribute : Attribute { /// 
Initializes a new instance of the  class.
 protected ValidationAttribute(); /// 
Initializes a new instance of the  class by using the function that enables access to validation resources.
 /// The function that enables access to validation resources. /// errorMessageAccessor is null. protected ValidationAttribute(Func errorMessageAccessor); /// 
Initializes a new instance of the  class by using the error message to associate with a validation control.
 /// The error message to associate with a validation control. protected ValidationAttribute(string errorMessage); /// 
Gets or sets an error message to associate with a validation control if validation fails.
 /// The error message that is associated with the validation control. public string ErrorMessage { get; set; } /// 
Gets or sets the error message resource name to use in order to look up the  property value if validation fails.
 /// The error message resource that is associated with a validation control. public string ErrorMessageResourceName { get; set; } /// 
Gets or sets the resource type to use for error-message lookup if validation fails.
 /// The type of error message that is associated with a validation control. public Type ErrorMessageResourceType { get; set; } /// 
Gets the localized validation error message.
 /// The localized validation error message. protected string ErrorMessageString { get; } /// 
Gets a value that indicates whether the attribute requires validation context.
 /// true if the attribute requires validation context; otherwise, false. public virtual bool RequiresValidationContext { get; } /// 
Applies formatting to an error message, based on the data field where the error occurred.
 /// The name to include in the formatted message. /// An instance of the formatted error message. public virtual string FormatErrorMessage(string name); /// 
Checks whether the specified value is valid with respect to the current validation attribute.
 /// The value to validate. /// The context information about the validation operation. /// An instance of the  class. public ValidationResult GetValidationResult( object value, ValidationContext validationContext); /// 
Determines whether the specified value of the object is valid.
 /// The value of the object to validate. /// true if the specified value is valid; otherwise, false. public virtual bool IsValid(object value); /// 
Validates the specified value with respect to the current validation attribute.
 /// The value to validate. /// The context information about the validation operation. /// An instance of the  class. protected virtual ValidationResult IsValid( object value, ValidationContext validationContext); /// 
Validates the specified object.
 /// The object to validate. /// The  object that describes the context where the validation checks are performed. This parameter cannot be null. /// Validation failed. public void Validate(object value, ValidationContext validationContext); /// 
Validates the specified object.
 /// The value of the object to validate. /// The name to include in the error message. /// value is not valid. public void Validate(object value, string name); }

    public class UserLogin { [Required(ErrorMessage = "用户名不能为空")] [StringLength(10,ErrorMessage = "用户名长度不能超过10位")] public string UserName { get; set; } //[Required(ErrorMessage = "密码不能为空")] [StringLength(6,ErrorMessage = "密码长度不能超过6位")] public string Password { get; set; } }

    public class FormController : Controller { public IActionResult Index() { return View(new UserLogin()); } public IActionResult PostData(UserLogin login) { return Content(ModelState.IsValid?"数据有效":"数据无效"); } }

@model Lesson2.Models.UserLogin @{ Layout = null; }    
 
 
 
用户名
@Html.TextBoxFor(m => m.UserName)
@Html.ValidationMessageFor(m => m.UserName)
 
密码
@Html.PasswordFor(m => m.Password)
@Html.ValidationMessageFor(m => m.Password)
 

    app.UseMvc(routes => { routes.MapRoute( name: "default", template: "{controller=Home}/{action=Index}/{id?}"); routes.MapRoute( name: "admin_default", template: "admin/{controller=Home}/{action=Index}/{id?}"); });

    [Route("admin/form")] public class FormController : Controller { [Route("index")] public IActionResult Index() { return View(new UserLogin()); } public IActionResult PostData(UserLogin login) { return Content(ModelState.IsValid?"数据有效":"数据无效"); } }

    public IActionResult Index([FromRoute] int? id) { return View(); }

  netcoreapp2.1false 

 netcoreapp2.2win7-x64falsetrue netcoreapp2.2win7-x64true ... ... ...