C#实现JSON转Datatable或Dataset,验证通过立即结贴。

2025-01-27 14:07:21
推荐回答(2个)
回答1:

网上有很多这方面的类
///


/// 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}]}
///

/// Json字符串
///
public static DataTable JsonToDataTable(string strJson)
{
//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(':');
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;
}

回答2:

这是专门提供给.NET的JSON类库
http://james.newtonking.com/projects/json-net.aspx
老实说,不知道你能不能看懂