Jquery(Ajax) 调用wcf

来源：互联网发布：smtp 端口是多少编辑：程序博客网时间：2024/04/30 11:02

1. 新建一个Ajax-enabled Wcf Service(如图1-1)

2 Jquery 客户端调用代码：

   $.ajax({
            type: "POST",
            contentType: "application/json",
            url: option.url,
            data: $.toJSON({ para: option }),
            dataType: "text",
            processData: false,
            success: function (data) {
                var json = ((typeof data) == "string") ? eval("(" + data + ")") : data;
                data = json.d;
                if(data == '' || data == undefined){
                  return;
                }
                json = ((typeof data) == "string") ? eval("(" + data + ")") : data;
                showData(json);
            },
            error: function (XMLHttpRequest, textStatus, errorThrown) {
                alert("Error Occured!");
            }
        });

/////////////////////////////////////////

data: $.toJSON({ para: option }), 表示传递的参数需要json序列化。

3 Wcf 服务器端代码：

   /// <summary>
        /// 获取某种类型的所有贺卡
        /// </summary>
        /// <param name="CardTypeId"></param>
        /// <returns></returns>
        [OperationContract]
        [WebInvoke(Method = "POST",
                   BodyStyle = WebMessageBodyStyle.WrappedRequest,
                   RequestFormat = WebMessageFormat.Json,
                   ResponseFormat = WebMessageFormat.Json)]
        public string QueryCardList(GridPara para)
        {
            IList<TCardDetail> list = null;
            list = cardBll.QueryCardList(para);
            if (list != null && list.Count > 0)
            {
                ProcessImage(list);
                JavaScriptSerializer js = new JavaScriptSerializer();
                string txt = js.Serialize(list);
                string str = "{/"results/":" + cardBll.QueryCardList(Convert.ToInt32(para.data)).Count + ",/"data/":" + txt + "}";
                return str;
            }
            else
            {
                return string.Empty;
            }
        }

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