学步园

public class JSONHelper<br /> {<br /> //对应JSON的singleInfo成员<br /> public string singleInfo = string.Empty;</p> <p> protected string _error = string.Empty;<br /> protected bool _success = true;<br /> protected long _totalCount = 0;<br /> protected System.Collections.ArrayList arrData = new ArrayList();<br /> protected System.Collections.ArrayList arrDataItem = new ArrayList();</p> <p> public JSONHelper()<br /> {<br /> //<br /> //TODO: 在此处添加构造函数逻辑<br /> //<br /> }</p> <p> //对应于JSON的success成员<br /> public bool success<br /> {<br /> get<br /> {<br /> return _success;<br /> }<br /> set<br /> {<br /> //如设置为true则清空error<br /> if (success) _error = string.Empty;<br /> _success = value;<br /> }<br /> }</p> <p> //对应于JSON的error成员<br /> public string error<br /> {<br /> get<br /> {<br /> return _error;<br /> }<br /> set<br /> {<br /> //如设置error，则自动设置success为false<br /> if (value != "") _success = false;<br /> _error = value;<br /> }<br /> }</p> <p> public long totlalCount<br /> {<br /> get { return _totalCount; }<br /> set { _totalCount = value; }<br /> }</p> <p> //重置，每次新生成一个json对象时必须执行该方法<br /> public void Reset()<br /> {<br /> _success = true;<br /> _error = string.Empty;<br /> singleInfo = string.Empty;<br /> arrData.Clear();<br /> arrDataItem.Clear();<br /> }</p> <p> public void AddItem(string name, string value)<br /> {<br /> arrData.Add("/"" + name + "/":" + "/"" + value + "/"");<br /> }</p> <p> public void ItemOk()<br /> {<br /> arrData.Add("<BR>");<br /> //返回总记录条数<br /> totlalCount++;<br /> }</p> <p> //序列化JSON对象，得到返回的JSON代码<br /> public override string ToString()<br /> {<br /> StringBuilder sb = new StringBuilder();<br /> sb.Append("{");<br /> sb.Append("/"totalCount/":/"" + _totalCount.ToString() + "/",");<br /> sb.Append("/"success/":" + _success.ToString().ToLower() + ",");<br /> sb.Append("/"error/":/"" + _error.Replace("/"", "///"") + "/",");<br /> sb.Append("/"data/":[");</p> <p> int index = 0;<br /> sb.Append("{");<br /> if (arrData.Count <= 0)<br /> {<br /> sb.Append("}");<br /> }<br /> else<br /> {<br /> foreach (string val in arrData)<br /> {<br /> index++;</p> <p> if (val != "<BR>")<br /> {<br /> sb.Append(val + ",");<br /> }<br /> else<br /> {<br /> sb = sb.Replace(",", "", sb.Length - 1, 1);<br /> sb.Append("},");<br /> if (index < arrData.Count)<br /> {<br /> sb.Append("{");<br /> }<br /> }</p> <p> }<br /> sb = sb.Replace(",", "", sb.Length - 1, 1);<br /> sb.Append("]");<br /> }</p> <p> sb.Append("}");<br /> return sb.ToString();<br /> }</p> <p> public string ToSingleString()<br /> {<br /> StringBuilder sb = new StringBuilder();<br /> sb.Append("{");</p> <p> sb.Append("success:" + _success.ToString().ToLower() + ",");</p> <p> sb.Append("data:");</p> <p> int index = 0;<br /> sb.Append("{");<br /> if (arrData.Count <= 0)<br /> {<br /> sb.Append("}");<br /> }<br /> else<br /> {<br /> foreach (string val in arrData)<br /> {<br /> index++;</p> <p> if (val != "<BR>")<br /> {<br /> sb.Append(val + ",");<br /> }<br /> else<br /> {<br /> sb = sb.Replace(",", "", sb.Length - 1, 1);<br /> sb.Append("},");<br /> if (index < arrData.Count)<br /> {<br /> sb.Append("{");<br /> }<br /> }</p> <p> }<br /> sb = sb.Replace(",", "", sb.Length - 1, 1);<br /> sb.Append("");<br /> }</p> <p> sb.Append("}");<br /> return sb.ToString();<br /> }<br /> }

调用方法：

JSONHelper json = new JSONHelper();</p> <p>json.success = true;</p> <p>json.AddItem("aid", "1");</p> <p>json.ItemOk();</p> <p>json.totlalCount=10;</p> <p>string jsons = "";<br /> if (json.totlalCount > 0)<br /> {<br /> jsons = json.ToString();<br /> }<br /> else<br /> {<br /> jsons = @"{success:false}";<br /> }<br /> return jsons;