public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; context.Response.Clear(); BLL.UserInfoExt bllUserInfo = new BLL.UserInfoExt(); string strUserName = context.Request["UName"]; string strEmail = context.Request["UEmail"]; string strType = context.Request["UType"]; switch (strType) { case "1": //注册时判断用户名是否存在 context.Response.Write(bllUserInfo.IsExistUserName(strUserName).ToString()); break; case "2": //注册时判断邮箱是否存在 context.Response.Write(bllUserInfo.IsExistEmail(strEmail).ToString()); break; } context.Response.End(); }