zszq-trs/YLErpDAL/Helpers/DbHelper.cs

using Oracle.ManagedDataAccess.Client;
using System.Data;

namespace YLErp.Helpers
{

    public class DbHelper : IDisposable
    {
        private readonly OracleConnection _con;
        private readonly object _syncLock = new object();
        private bool _runStatus = false;
        public DbHelper(string connString)
        {
            _con = new OracleConnection(connString);
            _con.Open();
            _runStatus = true;
        }

        ~DbHelper()
        {
            Dispose();
        }

        public void Dispose()
        {
            if (_runStatus)
            {
                lock (_syncLock)
                {
                    if (_runStatus)
                    {
                        _runStatus = false;
                        _con.Close();
                        _con.Dispose();
                    }
                }
            }
        }

        public void ExecuteSql(string sqlStr, Action<OracleDataReader> func)
        {
            var cmd = new OracleCommand(sqlStr, _con)
            {
                CommandType = CommandType.Text//大容量数据，可以进行修改，使用DataSet和DataAdapter
            };
            using (var dr = cmd.ExecuteReader())
            {
                while (dr.Read())
                {
                    func?.Invoke(dr);
                }
            }
        }

        public DataSet ExecuteSqlQuery(string sqlStr)
        {
            var cmd = new OracleCommand(sqlStr, _con)
            {
                CommandType = CommandType.Text//大容量数据，可以进行修改，使用DataSet和DataAdapter
            };
            var resultsDataSet = new DataSet();
            var adapter = new OracleDataAdapter(cmd);
            adapter.Fill(resultsDataSet);
            return resultsDataSet;
        }

        public DataTable ExecuteSqlQueryDataTable(string sqlStr)
        {
            var cmd = new OracleCommand(sqlStr, _con)
            {
                CommandType = CommandType.Text//大容量数据，可以进行修改，使用DataSet和DataAdapter
            };
            var resultsDataTable = new DataTable();
            var adapter = new OracleDataAdapter(cmd);
            adapter.Fill(resultsDataTable);
            return resultsDataTable;
        }


        public void ExecuteNoSqlsQuery(List<string> sqlStrList)
        {
            foreach (var itemSql in sqlStrList)
            {
                try
                {
                    LogFactory.GetLogger("ExecuteNoSqlsQuery").Info($"开始执行：{itemSql}");
                    using (OracleCommand cmd = new OracleCommand())
                    {
                        cmd.Connection = _con;
                        cmd.CommandText = itemSql;
                        cmd.ExecuteNonQuery();
                    }
                }
                catch (Exception ex)
                {
                    LogFactory.GetLogger("ExecuteNoSqlsQuery").Error(ex);
                }
                LogFactory.GetLogger("ExecuteNoSqlsQuery").Info($"结束执行：{itemSql}");
            }
        }
    }

}