js部分：

$.ajax({
type: "POST",
url: "/Auth/GetVedioInfo",
data: { "menuid": id },
success: function(request) {
$("#loginip").val(request.message.IpAddressInfor);
$("#port").val(request.message.Port);
$("#username").val(request.message.UserName);
$("#password").val(request.message.PassWords);
alert($("#loginip").val());
clickLogin();
}
});

控制器部分：
/// </summary>
/// <param name="ids">監控信息</param>
/// <returns></returns>
[HttpPost]
public ActionResult GetVedioInfo(int menuid)
{
var model = this.TestService.GetTest(menuid);
var res = new JsonResult();
var person = new { message = model };
res.Data = person;//返回單個對象；
res.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
return res;
}

MVC json方法使用