实践MVC+Entity framework

使用MVC模仿模板文件做了一个用户的登录，注册，修改密码的功能

Controller

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using System.Web.Mvc.Ajax;

using MvcTest.Models;



namespace MvcTest.Controllers

{

public class DBAccountController : Controller

{

//

// GET: /DBAccount/



public ActionResult Login()

{

return View("Login");

}



[AcceptVerbs(HttpVerbs.Post)]

public ActionResult Login(string username,string password)

{

　　　　DbMVCEntities context = new DbMVCEntities();

            int count = (from e in context.Usr

where e.username == username

where e.password == password

select e).Count();

if (count.Equals(0))

{

ModelState.AddModelError("username", "用?户?名?或?密?码?错?误?");

return View("Login");

}

else

{

TempData["Message"] = string.Format("用?户?名?为?{0}的?用?户?登?陆?成?功?!", username);

return RedirectToAction("LogInSuccess", "DBAccount");

}



}





public ActionResult Register()

{

return View("Register");

}



[AcceptVerbs(HttpVerbs.Post)]

public ActionResult Register(string username, string password, string confirmPassword, string email)

{

DbMVCEntities context = new DbMVCEntities();

if (password.Equals(confirmPassword))

{

//Usr newUser = Usr.CreateUsr(username, password, email);

Usr newUser = new Usr();

newUser.username = username;

newUser.password = password;

newUser.Email = email;

context.AddToUsr(newUser);

context.SaveChanges();

TempData["Message"] =string.Format("用?户?名?为?{0}的?用?户?注?册?成?功?!",username);

return RedirectToAction("LogInSuccess", "DBAccount");



}

else

{

ViewData.ModelState.AddModelError("password", "请?两?次?输?入?的?密?码?相?同?!");

return View("Register");

}



}





public ActionResult LogInSuccess()

{

ViewData["Message"] = TempData["Message"];

return View("LogInSuccess");

}



public ActionResult ChangePassword()

{

return View("ChangePassword");

}

[AcceptVerbs(HttpVerbs.Post)]

public ActionResult ChangePassword(string currentPassword, string newPassword, string confirmPassword)

{

if (newPassword.Equals(confirmPassword))

{



}





return RedirectToAction("LogInSuccess", "DBAccount");

}









}

}

 

View界面就复制了原来模板中的View

添加了一个这个View

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>



<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">

<title>LogInSuccess</title>

</asp:Content>



<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">



<h2>LogInSuccess</h2>

<p><%=ViewData["Message"] %></p>

</asp:Content>

 

上面的代码，关注的重点其实有两个

• 函数前的[AcceptVerbs(HttpVerbs.Post)] 针对统一ActionName，通过不同的方法实现提交和展示
• HtmlHelper后面生成的空间名和函数中的参数是对应的，不需要再进行配置（约定优于配置）
• 推荐大家看老赵的webcast