//检查用户名和密码
public JsonResult CheckSession(string userName, string pwd)
{
IDictionary <string, string> rsdic = _service.FormInfo(userName, pwd);
JsonResult json = new JsonResult();
json.Data = new
{
flag = rsdic["flag"],
userName = rsdic["userName"],
pwd = rsdic["pwd"]
};
return(Json(json, JsonRequestBehavior.AllowGet));
}