json的js和C#操作

C#端的WebService接口接收json格式数据，处理后以json格式返回result

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Services;

using Newtonsoft.Json.Linq;

namespace Web.WebService

{

    /// <summary>

    /// PhoneGPS 的摘要说明

    /// </summary>

    [WebService(Namespace = "NingboRoad")]

    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

    [System.ComponentModel.ToolboxItem(false)]

    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。

    [System.Web.Script.Services.ScriptService]

    public class PhoneGPS : System.Web.Services.WebService

    {

        #region RealtTimeLocation

        [WebMethod(EnableSession=true)]

        public string RealtTimeLocation(string para)

        {

            JObject jsonpara = JObject.Parse(para);
JObject jsonobject = new JObject();

            jsonobject.Add(new JProperty("Result", "0"));

            jsonobject.Add(new JProperty("ErrorInfo", ""));

            jsonobject.Add(new JProperty("LocationList", ""));

            string SessionID = jsonpara["SessionID"].ToString();

            /*

            if (SessionID != Session.SessionID)

            {

                jsonobject["Result"] = "0";

                jsonobject["ErrorInfo"] = "会话缺失，请重新登录！";

            }

            else

             */

            {

                var lstUser = BLL.GPS_User.GetUserList(BLL.SessionHelper.CurrentAccount.AccountID);
JArray array = new JArray();

                foreach (var user in lstUser)

                {

                    var gps=BLL.GPS_User.GetMonitor(user.AccountID);

                    JObject item = new JObject();

                    item.Add(new JProperty("Latitude", ""));

                    item.Add(new JProperty("Longitude",""));

                    item.Add(new JProperty("Address", ""));

                    item.Add(new JProperty("Describe", ""));

                    if (gps != null)

                    {

                        item["Latitude"] = gps.Lat.ToString();

                        item["Longitude"] = gps.Lng.ToString();

                        item["Address"] = gps.Address;

                        item["Describe"] = gps.Memo;

                    }

                    array.Add(item);

                }

                jsonobject["LocationList"] = array;

                jsonobject["Result"] = "1";

            }

            return jsonobject.ToString();

        }

        #endregion

}

前段javascript接收json并处理

var obj = JSON.parse(str); //由JSON字符串转换为JSON对象

obj.result

obj.ErrorInfo就是对应的属性值

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