MVC 提交表单

  public ActionResult UserLogin()
         {
             var UserName = Request["username"];
             var Password = Request["password"];

             if (UserName =="admin")
             {
                 if (Password=="admin")
                 {
                     return Content("ok:登录成功!!!");
                 }
                 else
                 {
                     return Content("no:密码输入错误!!!");

                 }
             }
             else
             {
                 return Content("no:账户输入错误，请重新输入!!!");
             }
         }

 @{
     Layout = null;
 }

 <!DOCTYPE html>

 <html>
 <head>
     <meta name="viewport" content="width=device-width" />
     <script src="~/Scripts/jquery-1.8.2.min.js"></script>
     <script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>
     <title>登录</title>
     <script type="text/javascript">
         function afterLogin(data) {//提交成功后回调
             var serverData = data.split(':');
             if (serverData[0] == "ok") {
                 window.location.href = "/Main/Index";
             }
             else if (serverData[0] == "no") {
                 $("#error").text(serverData[1]);
             }
             else {
                 $("#error").text("系统繁忙!!");
             }
         }
     </script>

 </head>
 <body>
     <div class="logindiv">
         @using (Ajax.BeginForm("UserLogin", new { }, new AjaxOptions() { HttpMethod = "post", OnSuccess = "afterLogin" }, new { id = "loginForm" }))
         {
             <div class="hide"></div>
             <table class="logintab">
                 <tbody>
                     <tr>
                         <td colspan="2" align="left">
                             <h3>请使用用户名或工号登录!!!</h3>
                         </td>
                     </tr>
                     <tr>
                         <td colspan="2">
                             <div class="hide"></div>
                         </td>
                     </tr>
                     <tr>
                         <td align="right">账户：</td>
                         <td align="left">
                             <input type="text" name="username" class="ipt" /></td>
                     </tr>
                     <tr>
                         <td align="right">密码：</td>
                         <td align="left">
                             <input type="password" name="password" class="ipt" /></td>
                     </tr>
                     <tr>
                         <td colspan="2" align="right">
                             <input type="submit" value="登录" class="sub" />
                         </td>
                     </tr>
                     <tr>
                         <td colspan="2"><span class="sperror" id="error"></span></td>
                     </tr>
                 </tbody>
             </table>
         }
     </div>
 </body>
 </html>