public string execReader(string sql)
{
string value = String.Empty;
DBUtil.onExecSqlBefore(_CLASS, "execReader", sql);
cmd.CommandText = @sql;
state = ConnectionState.Executing;
using (MySqlDataReader dr = cmd.ExecuteReader(CommandBehavior.Default))
{
switch (baseApi.getDataType().ToLower())
{
case "json":
value = DBUtil.DataReaderToJsonArrayString(dr, baseApi.getReSplit());
break;
case "jsonobject":
//value = DBUtil.DataReaderToJsonObjectString(dr, baseApi.getReSplit(), );
break;
case "ary":
case "array":
value = DBUtil.DataReaderToArrayString(dr, baseApi.getReSplit());
break;
case "html":
value = DBUtil.DataReaderToHtml(dr, baseApi.getRSplit(), baseApi.getCSplit(), baseApi.getReSplit());
break;
}
dr.Close();
}
return(value);
}
/// <summary>
/// 普通执行Sql语句 -- 只适用于update, insert, delete, 存储过程 四种
/// </summary>
/// <param name="sql">执行sql语言</param>
/// <returns>
/// 1: 如果执行成功则返回字符串1
/// 2: 如果执行失败则返回执行失败信息
/// </returns>
public override string execTrans(string sql, string dataType, string reSplit, string rSplit, string cSplit)
{
DBUtil.onExecSqlBefore(_CLASS, "execTrans", sql);
MySqlTransaction sqlTrans = null;
MySqlConnection connection = getDbConnecton();
string value = String.Empty;
try
{
sqlTrans = connection.BeginTransaction(); // 创建一个执行SQL事务的对象, 开启事务
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = connection;
cmd.Transaction = sqlTrans; //将执行事务的对象赋值给sqlCommand
cmd.CommandText = @sql;
using (IDataReader dr = cmd.ExecuteReader(CommandBehavior.Default)) {
switch (dataType.ToLower())
{
case "json":
value = DBUtil.DataReaderToJsonArrayString(dr, reSplit);
break;
case "ary":
case "array":
value = DBUtil.DataReaderToArrayString(dr, reSplit);
break;
case "html":
value = DBUtil.DataReaderToHtml(dr, rSplit, cSplit, reSplit);
break;
}
dr.Close();
}
sqlTrans.Commit(); //提交事务
connection.Close();
}
catch (Exception ex)
{
if (sqlTrans != null)
{
sqlTrans.Rollback(); connection.Close();
}
value = Native.getErrorMsg(ex.Message);
DBUtil.onExecSqlError(_CLASS, "execTrans", sql, ex.Message);
}
return(value);
}
/// <summary>
/// getQueryResultByType: 根据不同的dataType得到相应的查询结果
/// </summary>
/// <param name="sql">要执行查询的sql语句</param>
/// <param name="dataType">数据类型</param>
/// <param name="reSplit">结果集分隔符</param>
/// <param name="rSplit">行分隔符</param>
/// <param name="cSplit">列分隔符</param>
/// <returns>查询结果根据dataType而得到的字符串数据</returns>
public override string getQueryResultByType(string sql, string dataType, string reSplit, string rSplit, string cSplit)
{
string value = String.Empty;
DBUtil.onExecSqlBefore(_CLASS, "getQueryResultByType", sql);
try
{
using (MySqlConnection sqlConn = new MySqlConnection(dbInfo.toMyConnectionString()))
{
sqlConn.Open();
MySqlCommand sqlComm = sqlConn.CreateCommand();
sqlComm.CommandText = sql;
using (IDataReader dr = sqlComm.ExecuteReader(CommandBehavior.Default)) {
switch (dataType.ToLower())
{
case "json":
value = DBUtil.DataReaderToJsonArrayString(dr, reSplit);
break;
case "json-object":
value = DBUtil.DataReaderToJsonArrayString(dr, reSplit);
break;
case "ary":
case "array":
value = DBUtil.DataReaderToArrayString(dr, reSplit);
break;
case "html":
value = DBUtil.DataReaderToHtml(dr, rSplit, cSplit, reSplit);
break;
}
dr.Close();
}
sqlConn.Close();
}
}
catch (Exception ex)
{
value = Native.getErrorMsg(ex.Message);
DBUtil.onExecSqlError(_CLASS, "getQueryResultByType", sql, ex.Message);
}
return(value);
}
