[实战]MVC5+EF6+MySql企业网盘实战(6)——ajax方式登录

写在前面

今天回来的比较早，就趁着有空，把登录的代码更新一下。上篇文章实现了ajax的注册，这篇将实现登录，实现目标，ajax登录方式，如果勾选记住我，则下次不再输入用户名密码，直接跳转到网盘界面。

系列文章

[EF]vs15+ef6+mysql code first方式

[实战]MVC5+EF6+MySql企业网盘实战(1)

[实战]MVC5+EF6+MySql企业网盘实战(2)——用户注册

[实战]MVC5+EF6+MySql企业网盘实战(3)——验证码

[实战]MVC5+EF6+MySql企业网盘实战(4)——上传头像

[Bootstrap]modal弹出框

[实战]MVC5+EF6+MySql企业网盘实战(5)——登录界面，头像等比例压缩

[实战]MVC5+EF6+MySql企业网盘实战(5)——页面模板

[实战]MVC5+EF6+MySql企业网盘实战(5)——ajax方式注册

[实战]MVC5+EF6+MySql企业网盘实战(6)——ajax方式登录

代码

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="企业,网盘,企业网盘">
    <meta name="author" content="Muhammad Usman">
    <title>登录</title>
    <script src="~/Scripts/jquery-1.10.2.min.js"></script>
    <link href="~/Content/Css/bootstrap-cerulean.min.css" rel="stylesheet" />
    <link href="~/Content/Css/charisma-app.css" rel="stylesheet" />
    <link href="~/Content/Css/jquery.noty.css" rel="stylesheet" />

    <link href="~/Content/Css/elfinder.min.css" rel="stylesheet" />
    <link href="~/Content/Css/elfinder.theme.css" rel="stylesheet" />

    <link href="~/Content/Css/jquery.iphone.toggle.css" rel="stylesheet" />
    <link href="~/Content/Css/animate.min.css" rel="stylesheet" />
    <script>
        $(function () {
            //多选框
            $("#chkRemember").click(function () {
                if (!$(this).attr("checked")) {
                    $(this).attr("checked", 'checked');
                } else {
                    $(this).removeAttr("checked");
                };
            });
            //为登录按钮注册单击事件
            $('#btnLogin').click(function () {

                $.ajax({
                    type: "post",
                    url: "/UserInfo/Login",
                    data: { userName: $("#txtUserName").val(), pwd: $("#txtPwd").val(), remember: $("#chkRemember").attr('checked') },
                    dataType: "json",
                    success: function (data) {
                        console.log(data);
                        data = JSON.parse(data);
                        if (data.code == 200) {

                        } else {
                            $("#loginMsg").html("<span style='color:red;'>"+data.msg+"</span>");
                        };

                    }, error: function (msg) {
                        alert(data);
                    }
                });
            });
        });
    </script>
</head>
<body>
    <div class="row">

        <div class="row">
            <div class="col-md-12 center login-header">
                <h2>欢迎使用 Wolfy企业网盘</h2>
            </div>
            <!--/span-->
        </div><!--/row-->
        <div class="container">
            <div class="row">
                <div class="well col-md-5 center login-box">
                    <div class="alert alert-info" id="loginMsg">
                        请使用用户名和密码登录
                    </div>

                    <fieldset>
                        <div class="input-group input-group-lg">
                            <span class="input-group-addon"><i class="glyphicon glyphicon-user red"></i></span>
                            <input type="text" class="form-control" id="txtUserName" placeholder="用户名">
                        </div>
                        <div class="clearfix"></div><br>

                        <div class="input-group input-group-lg">
                            <span class="input-group-addon"><i class="glyphicon glyphicon-lock red"></i></span>
                            <input type="password" class="form-control" id="txtPwd" placeholder="密码">
                        </div>
                        <div class="clearfix"></div>

                        <div class="input-prepend">
                            <label class="remember" for="chkRemember"><input type="checkbox" name="chkRemember" id="chkRemember" value="1" /> 记住我</label>
                        </div>
                        <div class="clearfix"></div>

                        <p class="center col-md-5">
                            <button type="button" class="btn btn-primary" id="btnLogin">登录</button>
                        </p><a href="/UserInfo/Register" class="right" style="float:right;">注册</a>
                    </fieldset>

                </div>
                <!--/span-->
            </div><!--/row-->
        </div><!--/fluid-row-->
    </div>
</body>
</html>

目前还是使用session来保持状态，使用在action上加特性的方式，留待以后优化。

        [HttpGet]
        public ActionResult Login()
        {
            UserInfo userInfo = null;
            if (Request.Cookies["n"] != null && Request.Cookies["p"] != null)
            {
                string userName = Request.Cookies["n"].Value;
                string pwd = Request.Cookies["p"].Value;
                userInfo = _userInfoServiceRepository.Find(x => x.UserName == userName && x.Pwd == pwd);
                if (userInfo!=null)
                {
                    if (Session["user"] == null)
                    {
                        Session["user"] = userInfo;
                    }
                    //更新最后一次登录时间
                    userInfo.LoginDt = DateTime.Now;
                    _userInfoServiceRepository.Update(userInfo);
                    _userInfoServiceRepository.SaveChanges();
                }
              
            }
            return View();
        }
        /// <summary>
        /// 登录
        /// </summary>
        /// <param name="userName"></param>
        /// <param name="code"></param>
        /// <returns></returns>
        [HttpPost]
        public JsonResult Login(string userName, string pwd, string remember)
        {
            if (!_userInfoServiceRepository.Exist(userName))
            {
                return new JsonResult() { Data = "{\"code\":500,\"msg\":\"用户名不存在\"}" };
            }
            if (!string.IsNullOrEmpty(pwd))
            {
                pwd = MD5Helper.GetMD5FromString(pwd);
            }
            else
            {
                return new JsonResult() { Data = "{\"code\":500,\"msg\":\"密码不能为空\"}" };
            }
            UserInfo userInfo = _userInfoServiceRepository.Find(x => x.UserName == userName && x.Pwd == pwd);
            if (userInfo == null)
            {
                return new JsonResult() { Data = "{\"code\":500,\"msg\":\"用户名和密码不匹配\"}" };
            }
            if (!string.IsNullOrEmpty(remember) && remember.Equals("checked"))
            {
                HttpCookie nameCookie = new HttpCookie("n", userName);
                nameCookie.Expires = DateTime.Now.AddDays(7);
                //将md5串写入cookie，或者再次进行AES加密写入
                HttpCookie pwdCookie = new HttpCookie("p", pwd);
                pwdCookie.Expires = DateTime.Now.AddDays(7);
                Response.Cookies.Add(nameCookie);
                Response.Cookies.Add(pwdCookie);
            }
            //登录成功写入session
            Session["user"] = userInfo;
            //更新登录状态
            userInfo.LoginDt = DateTime.Now;
            _userInfoServiceRepository.Update(userInfo);
            _userInfoServiceRepository.SaveChanges();
            return new JsonResult() { Data = "{\"code\":200,\"msg\":\"登录成功\"}" };
        }