学用MVC4做网站一:修改密码1.3

一用户

1.1用户注册

1.2用户登录

1.3修改密码

修改密码会用到一个UserChangePassword 模型类，先添加UserChangePassword类

/// <summary>/// 用户修改密码模型/// </summary>
    [NotMapped]public class UserChangePassword{/// <summary>/// 原密码/// </summary>[Display(Name = "原密码")][Required(ErrorMessage = "×")][StringLength(20, MinimumLength = 6, ErrorMessage = "×")][DataType(DataType.Password)]public string Password { get; set; }/// <summary>/// 新密码/// </summary>[Display(Name = "新密码", Description = "6-20个字符。")][Required(ErrorMessage = "×")][StringLength(20, MinimumLength = 6, ErrorMessage = "×")][DataType(DataType.Password)]public string NewPassword { get; set; }/// <summary>/// 确认密码/// </summary>[Display(Name = "确认密码", Description = "再次输入密码。")][Compare("NewPassword", ErrorMessage = "×")][DataType(DataType.Password)]public string ConfirmPassword { get; set; }}

用到了数据库的更新，先打开UserRepository.cs 修改Update函数

/// <summary>/// 更新用户信息/// </summary>/// <param name="user"></param>/// <returns></returns>public override bool Update(User user){dbContext.Users.Attach(user);dbContext.Entry<User>(user).State = System.Data.EntityState.Modified;if (dbContext.SaveChanges() > 0) return true;else return false;}

在修改密码时需要查出用户信息并更新，需要添加Find(string UserName) 函数

/// <summary>/// 查找用户/// </summary>/// <param name="UserName">用户名</param>/// <returns></returns>public User Find(string UserName){return dbContext.Users.SingleOrDefault(u => u.UserName == UserName);}

好了打开UserController，添加ChangePassword Action

/// <summary>/// 修改密码/// </summary>/// <returns></returns>
        [UserAuthorize]public ActionResult ChangePassword(){return View();}[HttpPost][UserAuthorize]public ActionResult ChangePassword(){return View();}

添加强类型（UserChangePassword）视图，在视图中添加三个文本框，修改后的视图代码

@model Ninesky.Models.UserChangePassword
@{ ViewBag.Title = "修改密码";Layout = "~/Views/Shared/_Layout.cshtml";
}<div class="banner"><img src="~/Skins/Default/Images/banner.jpg" />
</div>@using (Html.BeginForm())
{@Html.ValidationSummary(true)<div class="form"><dl><dt>修改密码</dt><dd><div class="label">@Html.LabelFor(model => model.Password)：</div><div class="ctrl">@Html.PasswordFor(model => model.Password)@Html.ValidationMessageFor(model => model.Password)@Html.DisplayDescriptionFor(model => model.Password)</div></dd><dd><div class="label">@Html.LabelFor(model => model.NewPassword)：</div><div class="ctrl">@Html.PasswordFor(model => model.NewPassword)@Html.ValidationMessageFor(model => model.NewPassword)@Html.DisplayDescriptionFor(model => model.NewPassword)</div></dd><dd><div class="label">@Html.LabelFor(model => model.ConfirmPassword)：</div><div class="ctrl">@Html.PasswordFor(model => model.ConfirmPassword)@Html.ValidationMessageFor(model => model.ConfirmPassword)@Html.DisplayDescriptionFor(model => model.ConfirmPassword)</div></dd><dd><div class="label"></div><div class="ctrl"><input type="submit" value="修改密码" />@Html.ValidationMessage("Message")</div></dd></dl><div class="clear"></div></div>
}
@section Scripts {@Scripts.Render("~/bundles/jqueryval")
}

修改UserController中[HttpPost]方式的ChangePassword()以实现修改密码，修改完成的代码如下：

[HttpPost][UserAuthorize]public ActionResult ChangePassword(UserChangePassword userChangePassword){userRsy = new UserRepository();if (userRsy.Authentication(UserName, Common.Text.Sha256(userChangePassword.Password)) == 0){var _user = userRsy.Find(UserName);if (_user == null){Error _e = new Error { Title = "修改密码失败", Details = "修改密码时，系统查询不到用户信息", Cause = Server.UrlEncode("<li>用户在修改密码界面停留的时间过长，登录信息已失效。</li><li>系统错误。</li>"), Solution = Server.UrlEncode("<li>返回<a href='" + Url.Action("ChangePassword", "User") + "'>修改密码</a>页面，输入正确的信息后重新注册</li><li>联系网站管理员</li>") };return RedirectToAction("Error", "Prompt", _e);}_user.Password = Common.Text.Sha256(userChangePassword.NewPassword);if (userRsy.Update(_user)){Notice _n = new Notice { Title = "成功修改密码", Details = "您已经成功修改密码，请牢记您的新密码！", DwellTime = 5, NavigationName = "登陆页面", NavigationUrl = Url.Action("Login", "User") };return RedirectToAction("Notice", "Prompt", _n);}else{Error _e = new Error { Title = "修改密码失败", Details = "修改密码时，更新数据库失败！", Cause = Server.UrlEncode("<li>系统错误。</li>"), Solution = Server.UrlEncode("<li>返回<a href='" + Url.Action("ChangePassword", "User") + "'>修改密码</a>页面，输入正确的信息后重新注册</li><li>联系网站管理员</li>") };return RedirectToAction("Error", "Prompt", _e);}}else{ModelState.AddModelError("Password", "原密码不正确，请重新输入");return View();}}

在上面的代码中用到了一个UserName属性，这个是在UserController添加的属性用于返回Cookie中保存的用户名

/// <summary>/// 获取用户名/// </summary>public string UserName { get {HttpCookie _cookie = Request.Cookies["User"];if (_cookie == null) return "";else return _cookie["UserName"];}}

好了，浏览器中预览一下

测试一下，OK,大功告成！