Controller
結尾ControllerAttribute
標註public class TestController : Controller
{
}
[Controller]
public class Test : Controller
{
}
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默認路由規則html
{Domain}/{Controller}/{Action}
數據形式前端
QueryString
: ?name=zhangsan&age=22Form
Cookie
Session
Header
HttpRequestjquery
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");
}
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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");
}
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public IActionResult Hello(RequestModel request,int? age) {
// 查詢字符串
var test = Request.Query["test"];
// 簡單類型
var userAge = age;
// 自定義類型
var name = request.Name;
return Content("Hello");
}
public class RequestModel
{
public string Name { get; set; }
}
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NonControllerAttribute
/// <summary>
/// 拍賣師控制類
/// </summary>
[NonController]
public class AuctionController
{
}
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特性 | 數據源 |
---|---|
FromHeaderAttribute | 請求頭數據 |
FromRouteAttribute | 路由數據 |
FromBodyAttribute | 請求體 |
FromFormAttribute | 表單數據 |
FromQueryAttribute | 查詢字符串 |
FromServicesAttribute | 服務註冊 |
public IActionResult Say( [FromForm]string name, [FromQuery]int age, [FromHeader] string salt, [FromBody] string content ) {
return View();
}
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特性參數git
IActionResultgithub
ViewData | ViewBag |
---|---|
鍵值對 | 動態類型 |
索引器 | ViewData的封裝 |
支持任意類型 | 動態屬性 |
TempData | Cache | Session |
---|---|---|
視圖級別 | 應用程序級別 | 會話級別 |
只容許消費一次 | 服務器端保存 | 服務器端保存 |
可屢次賦值 | 可設置有效期 | 鍵值對形式 |
鍵值對形式 | 鍵值對形式 |
[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>("user",tom);
_cache.Get<User>("user");
return Content("ok");
}
}
public class User
{
public string Name { get; set; }
public string Pwd { get; set; }
}
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ValidationAttribute
public abstract class ValidationAttribute : Attribute
{
/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.DataAnnotations.ValidationAttribute"></see> class.</summary>
protected ValidationAttribute();
/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.DataAnnotations.ValidationAttribute"></see> class by using the function that enables access to validation resources.</summary>
/// <param name="errorMessageAccessor">The function that enables access to validation resources.</param>
/// <exception cref="T:System.ArgumentNullException"><paramref name="errorMessageAccessor">errorMessageAccessor</paramref> is null.</exception>
protected ValidationAttribute(Func<string> errorMessageAccessor);
/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.DataAnnotations.ValidationAttribute"></see> class by using the error message to associate with a validation control.</summary>
/// <param name="errorMessage">The error message to associate with a validation control.</param>
protected ValidationAttribute(string errorMessage);
/// <summary>Gets or sets an error message to associate with a validation control if validation fails.</summary>
/// <returns>The error message that is associated with the validation control.</returns>
public string ErrorMessage { get; set; }
/// <summary>Gets or sets the error message resource name to use in order to look up the <see cref="P:System.ComponentModel.DataAnnotations.ValidationAttribute.ErrorMessageResourceType"></see> property value if validation fails.</summary>
/// <returns>The error message resource that is associated with a validation control.</returns>
public string ErrorMessageResourceName { get; set; }
/// <summary>Gets or sets the resource type to use for error-message lookup if validation fails.</summary>
/// <returns>The type of error message that is associated with a validation control.</returns>
public Type ErrorMessageResourceType { get; set; }
/// <summary>Gets the localized validation error message.</summary>
/// <returns>The localized validation error message.</returns>
protected string ErrorMessageString { get; }
/// <summary>Gets a value that indicates whether the attribute requires validation context.</summary>
/// <returns>true if the attribute requires validation context; otherwise, false.</returns>
public virtual bool RequiresValidationContext { get; }
/// <summary>Applies formatting to an error message, based on the data field where the error occurred.</summary>
/// <param name="name">The name to include in the formatted message.</param>
/// <returns>An instance of the formatted error message.</returns>
public virtual string FormatErrorMessage(string name);
/// <summary>Checks whether the specified value is valid with respect to the current validation attribute.</summary>
/// <param name="value">The value to validate.</param>
/// <param name="validationContext">The context information about the validation operation.</param>
/// <returns>An instance of the <see cref="System.ComponentModel.DataAnnotations.ValidationResult"></see> class.</returns>
public ValidationResult GetValidationResult( object value, ValidationContext validationContext);
/// <summary>Determines whether the specified value of the object is valid.</summary>
/// <param name="value">The value of the object to validate.</param>
/// <returns>true if the specified value is valid; otherwise, false.</returns>
public virtual bool IsValid(object value);
/// <summary>Validates the specified value with respect to the current validation attribute.</summary>
/// <param name="value">The value to validate.</param>
/// <param name="validationContext">The context information about the validation operation.</param>
/// <returns>An instance of the <see cref="System.ComponentModel.DataAnnotations.ValidationResult"></see> class.</returns>
protected virtual ValidationResult IsValid( object value, ValidationContext validationContext);
/// <summary>Validates the specified object.</summary>
/// <param name="value">The object to validate.</param>
/// <param name="validationContext">The <see cref="T:System.ComponentModel.DataAnnotations.ValidationContext"></see> object that describes the context where the validation checks are performed. This parameter cannot be null.</param>
/// <exception cref="T:System.ComponentModel.DataAnnotations.ValidationException">Validation failed.</exception>
public void Validate(object value, ValidationContext validationContext);
/// <summary>Validates the specified object.</summary>
/// <param name="value">The value of the object to validate.</param>
/// <param name="name">The name to include in the error message.</param>
/// <exception cref="T:System.ComponentModel.DataAnnotations.ValidationException"><paramref name="value">value</paramref> is not valid.</exception>
public void Validate(object value, string name);
}
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經常使用數據驗證正則表達式
服務器端使用windows
前端使用設計模式
public class UserLogin
{
[Required(ErrorMessage = "用戶名不能爲空")]
[StringLength(10,ErrorMessage = "用戶名長度不能超過10位")]
public string UserName { get; set; }
//[Required(ErrorMessage = "密碼不能爲空")]
[StringLength(6,ErrorMessage = "密碼長度不能超過6位")]
public string Password { get; set; }
}
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public class FormController : Controller
{
public IActionResult Index() {
return View(new UserLogin());
}
public IActionResult PostData(UserLogin login) {
return Content(ModelState.IsValid?"數據有效":"數據無效");
}
}
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@model Lesson2.Models.UserLogin
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
</head>
<body>
<form asp-action="PostData" method="post">
<table>
<tr>
<td>用戶名</td>
<td>@Html.TextBoxFor(m => m.UserName)</td>
<td>@Html.ValidationMessageFor(m => m.UserName)</td>
</tr>
<tr>
<td>密碼</td>
<td>@Html.PasswordFor(m => m.Password)</td>
<td>@Html.ValidationMessageFor(m => m.Password)</td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="登陸" /></td>
<td></td>
</tr>
</table>
</form>
</body>
</html>
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路由數組
路由配置服務器
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?}");
});
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[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?"數據有效":"數據無效");
}
}
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約束 | 示例 | 說明 |
---|---|---|
required | "Product/{ProductName:required}" | 參數必選 |
alpha | "Product/{ProductName:alpha}" | 匹配字母,大小寫不限 |
int | "Product/{ProductId:int}" | 匹配int類型 |
··· | ··· | ··· |
composite | "Product/{ProductId:composite}" | 匹配composite類型 |
length | "Product/{ProductName:length(5)}" | 長度必須是5個字符 |
length | "Product/{ProductName:length(5)}" | 長度在5-10之間 |
maxlength | "Product/{ProductId:maxlength(10)}" | 最大長度爲10 |
minlength | "Product/{ProductId:minlength(3)}" | 最小長度爲3 |
min | "Product/{ProductId:min(3)}" | 大於等於3 |
max | "Product/{ProductId:max(10)}" | 小於等於10 |
range | "Product/{ProductId:range(5,10)}" | 對應的數組在5-10之間 |
regex | "Product/{ProductId:regex(^\d{4}$)}" | 符合指定的正則表達式 |
FormRouteAttribute
匹配參數與路由數據的映射關係public IActionResult Index([FromRoute] int? id) {
return View();
}
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Visual Studio
發佈應用:項目右鍵 -> 發佈 -> 發佈方式選擇...
dotnet publish
命令行工具發佈:dotnet publish --configuration Release --runtime win7-x64 --output c:\svc
.csproj
文件MvcRazorCompileOnPublish
爲false
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>netcoreapp2.1</TargetFramework>
<!-- 關閉視圖預編譯 -->
<MvcRazorCompileOnPublish>false</MvcRazorCompileOnPublish>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.App" />
<PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.1.1" />
</ItemGroup>
</Project>
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<!-- 依賴框架的部署 (FDD) -->
<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<RuntimeIdentifier>win7-x64</RuntimeIdentifier>
<SelfContained>false</SelfContained>
<IsTransformWebConfigDisabled>true</IsTransformWebConfigDisabled>
</PropertyGroup>
<!-- 獨立部署 (SCD) -->
<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<RuntimeIdentifier>win7-x64</RuntimeIdentifier>
<IsTransformWebConfigDisabled>true</IsTransformWebConfigDisabled>
</PropertyGroup>
...
...
...
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