学用MVC4做网站六后台管理:6.1.1管理员登录、6.1.2退出

1、管理员登录

在6.1中已添加控制器【AdministratorController】

在控制器中添加[Login()]action,用来显示登录页面

/// <summary>
        /// 登录
        /// </summary>
        public ActionResult Login()
        {
            return View();
        }

右键添加视图Login.cshtml

@{
    Layout = null;
}
<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>管理员登陆</title>
    @Styles.Render("~/Css/Admin")
    @Styles.Render("~/Css/Admin/Easyui")
    @Scripts.Render("~/bundles/jquery")
    @Scripts.Render("~/Scripts/Easyui")
    @Scripts.Render("~/Areas/Admin/Scripts/Administrator.js")
</head>
<body>

    <div id="wrapper">
        @using (Html.BeginForm())
        {
            @Html.ValidationSummary(true)
            <div class="easyui-panel" title="请登录" style=" 280px; height: 180px">
                <dl>
                    <dd>
                        <div>
                            <label>用户名</label>
                        </div>
                        <div>                            
                            <input id="adminName" name="adminName" type="text" placeholder="请输入用户名" required maxlength="20" />
                        </div>
                    </dd>
                    <dd>
                        <div>
                            <label>密码</label>
                        </div>
                        <div>
                            <input id="passWord" name="passWord" type="password" placeholder="请输入密码" required maxlength="20"  />
                        </div>
                    </dd>
                    <dd>
                        <div id="admin_login_msg" style="color:red;font-weight:bold"></div>
                        <div>
                            <button type="button" onclick="AdminLogin('@Url.Action("Index","Home")')">登录</button><button type="button" style="margin-left:40px" onclick="window.location.href='@Url.Action("Index", "Home", new { area = "" })'">
                                离开</button>
                        </div>
                    </dd>
                </dl>
            </div>
        }
    </div>
    <script type="text/javascript">
        var lbox = $("#wrapper");
        var x = ($(window).width() - 280) / 2;
        var y = ($(window).height() - 180) / 2;
        lbox.css("padding-top", y).css("padding-left", x);
    </script>
</body>
</html>

如图，在页面中居中显示一个easyui-panel用来输入用户名密码。

再在控制器中添加[Login(string adminName,string passWord)]action,用来处理管理员登录事件（返回类型JsonData）。

[HttpPost]
        public JsonResult Login(string adminName,string passWord)
        {
            JsonData _jdata = new JsonData();
            adminName = Server.HtmlEncode(adminName);
            passWord = Ninesky.Common.Sha256(Server.HtmlEncode(passWord));
            int _code = adminRsy.Authentication(adminName, passWord);
            if (_code == 1)
            {
                AdministratorController.AdminName = adminName;
                _jdata.Success = true;
                _jdata.Msg = "登录成功！";
            }
            else if (_code == 0)
            {
                _jdata.Success = false;
                _jdata.Msg = "密码错误！";
            }
            else if (_code == -1)
            {
                _jdata.Success = false;
                _jdata.Msg = "管理员账号不存在！";
            }
            else
            {
                _jdata.Success = false;
                _jdata.Msg = "发生未知错误，请刷新后重新登录！";
            }
            return Json(_jdata);
        }

再在文件夹~/Areas/Admin/Scripts中添加Administrator.js文件（这个文件中写所有与管理员操作相关的js函数）。

先写一个点击登录的函数function AdminLogin(url)，url是登录成功后跳转的页面。

//登录
function AdminLogin(url) {
    $('form').form('submit', {
        success: function (data) {
            var rt = jQuery.parseJSON(data);
            if (rt.Success) location.href = url;
            else {
                var msg = "";
                if (rt.MsgLsit != undefined) {
                    $.each(rt.MsgLsit, function (i, val) {
                        msg += "<li>" + i + ":" + val + "</li>";
                    });
                }
                if (msg != "") msg = rt.Msg + "<br /> <p> 原因如下：" + "<ul>" + msg + "</ul></p>";
                else msg = rt.Msg;
                $.messager.alert("登录失败", msg, "error");
            }
        }
    });
    return false;
}

当点击登录按钮时调用AdminLogin('@Url.Action("Index","Home")' 登录成功则跳转到“~/areas/admin/Home”，登录失败则弹出对话框提示消息。

正确管理员账号admin，密码000000

2、管理员退出

添加[Logout()]action，设置AdminName为空，然后跳转的登录界面，很简单。

/// <summary>
        /// 退出登录
        /// </summary>
        /// <returns></returns>
        public ActionResult Logout()
        {
            AdministratorController.AdminName = string.Empty;
            return RedirectToAction("Login","Administrator");
        }

=========待续

代码见网盘或群