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