C#实现将json转换为DataTable的方法

#region 将json转换为DataTable

/// <summary>

/// 将json转换为DataTable

/// </summary>

/// <param name=”strJson”>得到的json</param>

/// <returns></returns>

private DataTable JsonToDataTable(string strJson)

{

//转换json格式

strJson = strJson.Replace(“,\””, “*\””).Replace(“\”:”, “\”#”).ToString();

//取出表名

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(@”(?<={)[^}]+(?=})”);

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(‘#’);

if (strCell[0].Substring(0, 1) == “\””)

{

int a = strCell[0].Length;

dc.ColumnName = strCell[0].Substring(1, a – 2);

}

else

{

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(“\””, “”);

}

tb.Rows.Add(dr);

tb.AcceptChanges();

}

return tb;

}

#endregion