cache: 

false

,

                    async: 

true

,

                    type: 'post',
                    success: 

function

 (data) {

                        

if

 (data == "OK") {

                            window.location.href = "/Home/Index";

                        } 

else

 {

                            alert(data);
                            window.location.href = "/Login/Index";
                        }
                    }
                });
            });

        }

用户登录的后台控制器方法如下所示：

        

///

 

<summary>

        

///

 

对用户登录的操作进行验证

        

///

 

</summary>

        

///

 

<param name="username">

用户账号

</param>

        

///

 

<param name="password">

用户密码

</param>

        

///

 

<param name="code">

验证码

</param>

        

///

 

<returns></returns>

        

public

 ActionResult CheckUser(

string

 username, 

string

 password, 

string

 code)

        {
            

string

 result = 

""

;

            

bool

 codeValidated = 

true

;

            

if

 (

this

.TempData[

"ValidateCode"

] != 

null

)

            {
                codeValidated = (

this

.TempData[

"ValidateCode"

].ToString() == code);

            }

            

if

 (

string

.IsNullOrEmpty(username))

            {
                result = 

"用户名不能为空"

;

            }
            

else

 

if

 (!codeValidated)

            {
                result = 

"验证码输入有误"

;