DanaZhangMvcCms 第一节用户登录

1.用户登录

 

先看一下解决方案

接下来我们建一个名为Users的Model

 public  class Users
    {
          public Users()
             { }
            [Key]
            [DisplayName("编号")]
            public int Id { get; set; }

            [DisplayName("用户名")]
            [Required(ErrorMessage = "用户名不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string Name { get; set; }

            [DisplayName("密码")]
            [Required(ErrorMessage = "密码不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string Password { get; set; }

            [DisplayName("姓名")]
            [Required(ErrorMessage = "姓名不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string RealName { get; set; }

            [DisplayName("级别")]
            [Required(ErrorMessage = "级别不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string RankId { get; set; }

            [DisplayName("管理用户？")]
            [Required(ErrorMessage = "管理用户？不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string IsPower { get; set; }

            [DisplayName("是否激活")]
            [Required(ErrorMessage = "是否激活不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string IsActive { get; set; }

            [DisplayName("所属地区")]
            [Required(ErrorMessage = "所属地区不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string RegionId { get; set; }

            [DisplayName("手机号")]
            [Required(ErrorMessage = "手机号不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string Mobil { get; set; }

            [DisplayName("电子邮件")]
            [Required(ErrorMessage = "电子邮件不得为空")]
            [DisplayFormat(ConvertEmptyStringToNull = false)]
            public string Email { get; set; }

        
    }

　　然后是BLL中的代码，Resposity 模式我暂时没用

public class UsersServices
    {
     
       DanaZhangMvcCmsContext _db = new DanaZhangMvcCmsContext();
        public IQueryable<Users> Get()
        {
            var model = _db.Users.OrderBy(a => a.Id);
            return model;
        }
        public Users Get(int Id)
        {
            var item = new Users();
 
             item = _db.Users.SingleOrDefault(a => a.Id.Equals(Id));
            
            return item;
        }
        public Users Get(string name)
        {
            var item = new Users();
            item= _db.Users.SingleOrDefault(a => a.Name.Equals(name));
            return item;
        }
        public string GetName(int Id)
        {
            string name = "您好，游客";
            var user = Get(Id);
            if (user != null)
                name = user.Name;
            return name;
        }
        public bool CheckUser(int Id, string password)
        {
            password = Common.DESEncrypt.Encrypt(password);
            return Get(Id).Password.Equals( password);
        }
        public bool IsDuplicate(string name)
        {
            bool isDuplicate = false;
            var item = _db.Users.SingleOrDefault(a => a.Name == name);
            if (item != null)
                isDuplicate = true;
            return isDuplicate;
        }
        public bool IsDuplicateButSelf(int Id, string name)
        {
            bool isDuplicate = false;
            var item = _db.Users.SingleOrDefault(a => a.Id != Id && a.Name == name);
            if (item != null)
                isDuplicate = true;
            return isDuplicate;
        }
        public void Save(int Id, ref Users item)
        {
           

                _db.Users.Add(item);
                _db.SaveChanges();
        }
        public void DeleteObject(int Id)
        {
            _db.Users.Remove(_db.Users.Single(a => a.Id == Id));
            _db.SaveChanges();
        }
       
    }

　　在写Controller中的内容

  public class AccountController : Controller
    {
        //
        // GET: /Account/

        UsersServices _UsersBLL = new UsersServices();
        public ActionResult LogOn()
        {
            return View();
        }
        [HttpPost]
        public ActionResult LogOn(LogOnModel item)
        {
            bool isPower = true;
            string ip = Request.UserHostAddress;
            
            if (!ModelState.IsValid)
            {
                return View(item);
            }
            var item1 = _UsersBLL.Get(item.Name);
            if (item1 != null)
            {
                if (_UsersBLL.CheckUser(item1.Id, item.Password))
                {
                    FormsAuthentication.SetAuthCookie(item1.Name.ToString(),false);
       
                    if (isPower)
                    {
                        return Redirect("/Admin");
                    }
                    else
                    {
                        if (Request["ReturnUrl"] != null)
                        {
                            return Redirect(Request["ReturnUrl"]);
                        }
                        else
                        {
                            return Redirect("/");
                        }
                    }
                }
                else
                {
    
                    
                    ModelState.AddModelError("", "用户名不存在或密码错误！");
                }
            }
            else
            {

                ModelState.AddModelError("", "用户名不存在或密码错误！");
            }
            return View(item);
        }



        public virtual ActionResult LogOff()
        {
            FormsAuthentication.SignOut();
            return Redirect("/");
        }
        #region  生成验证码图片
        [OutputCache(Location = OutputCacheLocation.None, Duration = 0, NoStore = false)]
        public ActionResult SecurityCode()
        {

            string oldcode = TempData["SecurityCode"] as string;
            string code = CreateRandomCode(5);
            TempData["SecurityCode"] = code;
            return File(CreateValidateGraphic(code), "image/Jpeg");
        }
        private byte[] CreateImage(string checkCode)
        {
            int iwidth = (int)(checkCode.Length * 12);
            System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 20);
            Graphics g = Graphics.FromImage(image);
            Font f = new System.Drawing.Font("Arial", 10, System.Drawing.FontStyle.Bold);
            Brush b = new System.Drawing.SolidBrush(Color.White);
            g.Clear(Color.Blue);
            g.DrawString(checkCode, f, b, 3, 3);
            Pen blackPen = new Pen(Color.Black, 0);
            Random rand = new Random();
            for (int i = 0; i < 5; i++)
            {
                int x1 = rand.Next(image.Width);
                int x2 = rand.Next(image.Width);
                int y1 = rand.Next(image.Height);
                int y2 = rand.Next(image.Height);
                g.DrawLine(new Pen(Color.Silver, 1), x1, y1, x2, y2);
            }
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            return ms.ToArray();
        }
        private string CreateRandomCode(int codeCount)
        {
            string allChar = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,W,X,Y,Z";
            string[] allCharArray = allChar.Split(',');
            string randomCode = "";
            int temp = -1;
            Random rand = new Random();
            for (int i = 0; i < codeCount; i++)
            {
                if (temp != -1)
                {
                    rand = new Random(i * temp * ((int)DateTime.Now.Ticks));
                }
                int t = rand.Next(35);
                if (temp == t)
                {
                    return CreateRandomCode(codeCount);
                }
                temp = t;
                randomCode += allCharArray[t];
            }
            return randomCode;
        }
        /// <summary>
        /// 创建验证码的图片
        /// </summary>
        public byte[] CreateValidateGraphic(string validateCode)
        {
            Bitmap image = new Bitmap((int)Math.Ceiling(validateCode.Length * 16.0), 27);
            Graphics g = Graphics.FromImage(image);
            try
            {
                //生成随机生成器
                Random random = new Random();
                //清空图片背景色
                g.Clear(Color.White);
                //画图片的干扰线
                for (int i = 0; i < 25; i++)
                {
                    int x1 = random.Next(image.Width);
                    int x2 = random.Next(image.Width);
                    int y1 = random.Next(image.Height);
                    int y2 = random.Next(image.Height);
                    g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);
                }
                Font font = new Font("Arial", 13, (FontStyle.Bold | FontStyle.Italic));
                LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height),
                 Color.Blue, Color.DarkRed, 1.2f, true);
                g.DrawString(validateCode, font, brush, 3, 2);
                //画图片的前景干扰点
                for (int i = 0; i < 100; i++)
                {
                    int x = random.Next(image.Width);
                    int y = random.Next(image.Height);
                    image.SetPixel(x, y, Color.FromArgb(random.Next()));
                }
                //画图片的边框线
                g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
                //保存图片数据
                MemoryStream stream = new MemoryStream();
                image.Save(stream, ImageFormat.Jpeg);
                //输出图片流
                return stream.ToArray();
            }
            finally
            {
                g.Dispose();
                image.Dispose();
            }
        }
        #endregion

    }

然后就是View了

@model DanaZhangMvcCms.Model.LogOnModel
@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <title>用户登录</title>
    <link href="/scripts/ui/skins/Aqua/css/ligerui-all.css" rel="stylesheet" type="text/css" />
<link href="/Content/image/style.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="/scripts/jquery.min.js"></script>
<script type="text/javascript" src="/scripts/jquery.validate.js"></script> 
<script type="text/javascript" src="/scripts/messages_cn.js"></script>
<script type="text/javascript" src="/scripts/ui/js/ligerBuild.min.js"></script>
<script type="text/javascript" src="/scripts/function.js"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
<script type="text/javascript">
    //表单验证
    $(function () {
        //检测IE
        if ($.browser.msie && $.browser.version == "6.0") {
            window.location.href = 'ie6update.html';
        }

        $('#name').focus();


    });
</script>

</head>
<body>
<div class="login_div">

   @Html.ValidationSummary(true)
  <form action="@Url.Action("LogOn","Account")" method="post">
         
	<div class="login_box">
    	<div class="login_logo">LOGO</div>
        <div class="login_content">
          <dl>
			<dt>登录账号：</dt>
            <dd>
              
              <input name="Name" type="text" id="Name"  style="130px;" />
               @Html.ValidationMessageFor(m => m.Name)
            </dd>
           </dl>
       <dl >
			<dt>登录密码：</dt>
            <dd>
                <input name="Password" type="password" id="Password" class="login_input required" style="130px;" />
            </dd>
          </dl>
          <dl>
			<dt>验证码：</dt>
            <dd>
                 <input name="txtCode" type="text" maxlength="6" id="txtCode" class="login_input required" style="55px;text-transform:uppercase;" />
                <img src="SecurityCode" width="70" height="22" alt="点击切换验证码" title="点击切换验证码" style=" margin-top:2px; vertical-align:top;cursor:pointer;" onclick="ToggleCode(this, 'SecurityCode');return false;" />
            </dd>
          </dl>
        </div>
        <div class="login_foot">

	<div class="right"><input type="submit" name="btnSubmit" value="登 录" id="btnSubmit"  class="login_btn" /></div>

			
		</div>
       
    </div>

   </form>

	<div class="login_copyright">Copyright © 2009 - @System.DateTime.Now.Year DanaZhang All Rights Reserved.<br />DanaZhang 版权所有</div>
</div>
</body>
</html>

　　登录现在就算完成了，看一下我们的界面