MVC4制作网站教程第二章 用户登陆2.2

一用户 
1.1用户注册 
1.2用户登陆 

首先在Models里添加用户登陆模型类UserLogin，该类只要用用户名，密码和验证码三个字段。 

/// <summary> /// 用户登陆模型 /// </summary> public class UserLogin { /// <summary> /// 用户名 /// </summary> [Display(Name = "用户名", Description = "4-20个字符。")] [Required(ErrorMessage = "×")] [StringLength(20, MinimumLength = 4, ErrorMessage = "×")] public string UserName { get; set; } /// <summary> /// 密码 /// </summary> [Display(Name = "密码", Description = "6-20个字符。")] [Required(ErrorMessage = "×")] [StringLength(20, MinimumLength = 6, ErrorMessage = "×")] [DataType(DataType.Password)] public string Password { get; set; } /// <summary> /// 验证码 /// </summary> [Display(Name = "验证码", Description = "请输入图片中的验证码。")] [Required(ErrorMessage = "×")] [StringLength(6, MinimumLength = 6, ErrorMessage = "×")] public string VerificationCode { get; set; } }

在UserController里添加Login action； 代码看如下：

public ActionResult Login() {  return View(); } [HttpPost] public ActionResult Login(UserLogin login) {  return View(); }

使用Cookie保存登陆账号，密码等信息，修改public ActionResult Login(UserLogin login)。修改完成代码如下：

[HttpPost] public ActionResult Login(UserLogin login) {  //验证验证码  if (Session["VerificationCode"] == null || Session["VerificationCode"].ToString() == "")  {  Error _e = new Error { Title = "验证码不存在", Details = "在用户注册时，服务器端的验证码为空，或向服务器提交的验证码为空", Cause = "<li>你注册时在注册页面停留的时间过久页已经超时</li><li>您绕开客户端验证向服务器提交数据</li>", Solution = "返回<a href='" + Url.Action("Register", "User") + "'>注册</a>页面，刷新后重新注册" };  return RedirectToAction("Error", "Prompt", _e);  }  else if (Session["VerificationCode"].ToString() != login.VerificationCode.ToUpper())  {  ModelState.AddModelError("VerificationCode", "×");  return View();  }  //验证账号密码  userRsy = new UserRepository();  if (userRsy.Authentication(login.UserName, Common.Text.Sha256(login.Password)) == 0)  {  HttpCookie _cookie = new HttpCookie("User");  _cookie.Values.Add("UserName", login.UserName);  _cookie.Values.Add("Password", Common.Text.Sha256(login.Password));  Response.Cookies.Add(_cookie);  return RedirectToAction("Default","User");  }  else  {  ModelState.AddModelError("Message", "登陆失败！");  return View();  } }

在public ActionResult Login() 上右键添加强类型视图