操作方法
1. 使用说明： 对List<类> 集合使用的方法： List<TBL_CODE_MZ> objList = objAction.GetCODE_MByList(objTbl); string JsonSource = JSONHelper.ToJSON(objList); //当前页记录转成JSON格式 对数据集的使用如：DataSet,DataTable JSONHelper jsonHelp = new JSONHelper(); jsonHelp.success = true; jsonHelp.totlalCount = getPrjListCount(); foreach (DataRow dr in dsResult.Tables[0].Rows) { jsonHelp.AddItem("PRJ_ID", dr["PRJ_ID"].ToString()); jsonHelp.AddItem("PRJ_NAME", dr["PRJ_NAME"].ToString()); jsonHelp.AddItem("DEP_ID", dr["DEP_ID"].ToString()); jsonHelp.AddItem("PRJ_MANID", dr["PRJ_MANID"].ToString()); jsonHelp.AddItem("PRJ_STATE", dr["PRJ_STATE"].ToString()); if (dr["PRJ_STARTDATE"] != DBNull.Value) { jsonHelp.AddItem("PRJ_STARTDATE", Convert.ToDateTime(dr["PRJ_STARTDATE"]).ToString("yyyy/MM/dd")); } else { jsonHelp.AddItem("PRJ_STARTDATE", string.Empty); } if (dr["PRJ_ENDDATE"] != DBNull.Value) { jsonHelp.AddItem("PRJ_ENDDATE", Convert.ToDateTime(dr["PRJ_ENDDATE"]).ToString("yyyy/MM/dd")); } else { jsonHelp.AddItem("PRJ_ENDDATE", string.Empty); } jsonHelp.AddItem("PRJ_MEMO", dr["PRJ_MEMO"].ToString()); jsonHelp.AddItem("CODE_NAME", dr["CODE_NAME"].ToString()); jsonHelp.AddItem("DEP_NAME", dr["DEP_NAME"].ToString()); jsonHelp.AddItem("USER_NAME", dr["USER_NAME"].ToString()); jsonHelp.ItemOk(); } string strResult = jsonHelp.ToString();
2.JSONHelp.cs源码 using System; using System.Collections; using System.Collections.Generic; using System.Text; using System.Web.Script.Serialization; namespace framework.common { /**//// <summary> /// JSONHelper 的摘要说明 /// </summary> public class JSONHelper { //对应JSON的singleInfo成员 public string singleInfo = string.Empty; protected string _error = string.Empty; protected bool _success = true; protected long _totalCount = 0; protected System.Collections.ArrayList arrData = new ArrayList(); public JSONHelper() { } public static string ToJSON(object obj) { JavaScriptSerializer serializer = new JavaScriptSerializer(); return serializer.Serialize(obj); } public static string ToJSON(object obj, int recursionDepth) { JavaScriptSerializer serializer = new JavaScriptSerializer(); serializer.RecursionLimit = recursionDepth; return serializer.Serialize(obj); } //对应于JSON的success成员 设置success为TURE，代表成功#region 设置success为TURE，代表成功 public bool success { get { return _success; } set { //如设置为true则清空error if (success) _error = string.Empty; _success = value; } } #endregion //对应于JSON的error成员 public string error { get { return _error; } set { //如设置error，则自动设置success为false if (value != "") _success = false; _error = value; } } public long totlalCount { get ...{ return _totalCount; } set ...{ _totalCount = value; } } //重置，每次新生成一个json对象时必须执行该方法 public void Reset() { _success = true; _error = string.Empty; singleInfo = string.Empty; arrData.Clear(); } #region public void AddItem(string name, string value) { arrData.Add(""" + name + "":" + """ + value + """); } #endregion public void ItemOk() { arrData.Add("<BR>"); } //序列化JSON对象，得到返回的JSON代码 public override string ToString() { StringBuilder sb = new StringBuilder(); sb.Append("{"); sb.Append("totalCount:" + totlalCount.ToString() + ","); sb.Append("success:" + _success.ToString().ToLower() + ","); sb.Append("error:"" + _error.Replace(""", "\"") + "","); sb.Append("singleInfo:"" + singleInfo.Replace(""", "\"") + "","); sb.Append("data:["); int index = 0; sb.Append("{"); if (arrData.Count <= 0) { sb.Append("}]"); } else { foreach (string val in arrData) { index++; if (val != "<BR>") { sb.Append(val + ","); } else { sb = sb.Replace(",", "", sb.Length - 1, 1); sb.Append("},"); if (index < arrData.Count) { sb.Append("{"); } } } sb = sb.Replace(",", "", sb.Length - 1, 1); sb.Append("]"); } sb.Append("}"); return sb.ToString(); } } }