public T pageExecute <T>(IAopRequest <T> request, string accessToken, string reqMethod) where T : AopResponse
        {
            if (string.IsNullOrEmpty(this.charset))
            {
                this.charset = "utf-8";
            }

            string apiVersion = null;

            if (!string.IsNullOrEmpty(request.GetApiVersion()))
            {
                apiVersion = request.GetApiVersion();
            }
            else
            {
                apiVersion = Version;
            }

            AopDictionary txtParams = new AopDictionary(request.GetParameters());

            // 序列化BizModel
            txtParams = SerializeBizModel(txtParams, request);

            System.Text.StringBuilder xmlData = new System.Text.StringBuilder();


            // 添加协议级请求参数
            //AopDictionary txtParams = new AopDictionary(request.GetParameters());
            txtParams.Add(METHOD, request.GetApiName());
            txtParams.Add(VERSION, apiVersion);
            txtParams.Add(APP_ID, appId);
            txtParams.Add(FORMAT, format);
            txtParams.Add(TIMESTAMP, DateTime.Now);
            txtParams.Add(ACCESS_TOKEN, accessToken);
            txtParams.Add(SIGN_TYPE, signType);
            txtParams.Add(TERMINAL_TYPE, request.GetTerminalType());
            txtParams.Add(TERMINAL_INFO, request.GetTerminalInfo());
            txtParams.Add(PROD_CODE, request.GetProdCode());
            txtParams.Add(NOTIFY_URL, request.GetNotifyUrl());
            txtParams.Add(CHARSET, this.charset);
            //txtParams.Add(RETURN_URL, this.return_url);
            txtParams.Add(RETURN_URL, request.GetReturnUrl());
            //字典排序
            IDictionary <string, string> sortedTxtParams = new SortedDictionary <string, string>(txtParams);

            txtParams = new AopDictionary(sortedTxtParams);
            // 排序返回字典类型添加签名参数
            txtParams.Add(SIGN, AopUtils.SignAopRequest(sortedTxtParams, privateKeyPem, this.charset, this.keyFromFile, this.signType));

            // 是否需要上传文件
            string body;

            if (request is IAopUploadRequest <T> )
            {
                IAopUploadRequest <T>          uRequest   = (IAopUploadRequest <T>)request;
                IDictionary <string, FileItem> fileParams = AopUtils.CleanupDictionary(uRequest.GetFileParameters());
                body = webUtils.DoPost(this.serverUrl + "?" + CHARSET + "=" + this.charset, txtParams, fileParams, this.charset);
            }
            else
            {
                if (reqMethod.Equals("GET"))
                {
                    //直接调用DoGet方法请求
                    //body=webUtils .DoGet (this.serverUrl ,txtParams ,this.charset);
                    //拼接get请求的url
                    string tmpUrl = serverUrl;
                    if (txtParams != null && txtParams.Count > 0)
                    {
                        if (tmpUrl.Contains("?"))
                        {
                            tmpUrl = tmpUrl + "&" + WebUtils.BuildQuery(txtParams, charset);
                        }
                        else
                        {
                            tmpUrl = tmpUrl + "?" + WebUtils.BuildQuery(txtParams, charset);
                        }
                    }
                    body = tmpUrl;
                }
                else
                {
                    //直接调用DoPost方法请求
                    // body = webUtils.DoPost(this.serverUrl, txtParams, this.charset);
                    //输出post表单
                    body = BuildHtmlRequest(txtParams, reqMethod, reqMethod);
                }
            }

            T rsp = null;
            IAopParser <T> parser = null;

            if ("xml".Equals(format))
            {
                parser = new AopXmlParser <T>();
                rsp    = parser.Parse(body, charset);
            }
            else
            {
                parser = new AopJsonParser <T>();
                rsp    = parser.Parse(body, charset);
            }

            //验签
            // CheckResponseSign(request, rsp, parser, this.alipayPublicKey, this.charset);
            return(rsp);
        }