方法1：
/// <summary>/// 将JSON解析成DataSet只限标准的JSON数据/// 例如：Json＝{t1:[{name:'数据name',type:'数据type'}]} /// 或 Json＝{t1:[{name:'数据name',type:'数据type'}],t2:[{id:'数据id',gx:'数据gx',val:'数据val'}]}/// </summary>/// <param name="Json">Json字符串</param>/// <returns>DataSet</returns>public static DataSet JsonToDataSet(string Json){try{DataSet ds = new DataSet();JavaScriptSerializer JSS = new JavaScriptSerializer();object obj = JSS.DeserializeObject(Json);Dictionary<string, object> datajson = (Dictionary<string, object>)obj;foreach (var item in datajson){DataTable dt = new DataTable(item.Key);object[] rows = (object[])item.Value;foreach (var row in rows){Dictionary<string, object> val = (Dictionary<string, object>)row;DataRow dr = dt.NewRow();foreach (KeyValuePair<string, object> sss in val){if (!dt.Columns.Contains(sss.Key)){dt.Columns.Add(sss.Key.ToString());dr[sss.Key] = sss.Value;}elsedr[sss.Key] = sss.Value;}dt.Rows.Add(dr);}ds.Tables.Add(dt);}return ds;}catch{return null;}}
方法2：
/// <summary> /// 根据Json返回DateTable,JSON数据格式如: /// {table:[{column1:1,column2:2,column3:3},{column1:1,column2:2,column3:3}]} /// items:{"2750884":{clicknum:"50",title:"鲍鱼",href:"/shop/E06B14B40110/dish/2750884#menu",desc:"<br/>",src:"15f38721-49da-48f0-a283-8057c621b472.jpg",price:78.00,units:"",list:[],joiner:""}}/// </summary> /// <param name="strJson">Json字符串</param> /// <returns></returns> public static DataTable JsonToDataTable(string strJson){//取出表名 //var rg = new Regex(@"(?<={)[^:]+(?=:\[)", RegexOptions.IgnoreCase);var rg = new Regex(@"([^:])+(?=:\{)", RegexOptions.IgnoreCase);string strName = rg.Match(strJson).Value;DataTable tb = null;//去除表名 //strJson = strJson.Substring(strJson.IndexOf("{") + 1);//strJson = strJson.Substring(0, strJson.IndexOf("}"));//获取数据 //rg = new Regex(@"(?<={)[^}]+(?=})");rg = new Regex(@"(?<={)[^}]+(?=})");System.Text.RegularExpressions.MatchCollection mc = rg.Matches(strJson);for (int i = 0; i < mc.Count; i++){string strRow = mc[i].Value;string[] strRows = strRow.Split(',');//创建表 if (tb == null){tb = new DataTable();tb.TableName = strName;foreach (string str in strRows){var dc = new DataColumn();string[] strCell = str.Split(':');dc.ColumnName = strCell[0];tb.Columns.Add(dc);}tb.AcceptChanges();}//增加内容 DataRow dr = tb.NewRow();for (int r = 0; r < strRows.Length; r++){//dr[r] = strRows[r].Split(':')[1].Trim().Replace("，", ",").Replace("：", ":").Replace("\"", "");dr[r] = strRows[r];}tb.Rows.Add(dr);tb.AcceptChanges();}return tb;}
