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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Data;using ICSSoft.Base.Config.AppConfig;using ICSSoft.Base.Config.DBHelper;using Oracle.ManagedDataAccess.Client;
namespace ICSSoft.Frame.Data.DAL{ public class DBHelper_Oracle { public static string DBServerIP = ""; public static string OracleSID = ""; public static string DBUserName = ""; public static string DBPassword = "";
public static OracleCommand cmd = null; public static OracleConnection conn = null; public static string connstr = "[DB.PLM]";
public DBHelper_Oracle() { } #region 建立Oracle数据库连接对象
/// <returns>返回一个数据库连接的OracleConnection对象</returns>
public static OracleConnection init() { try { GetDataBaseConnect(); string connstr = "User Id={2};Password={3};Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST={0})(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME={1})))"; connstr = string.Format(connstr, DBServerIP, OracleSID, DBUserName, DBPassword); conn = new OracleConnection(connstr); if (conn.State != ConnectionState.Open) { conn.Open(); } } catch (Exception e) { throw new Exception(e.Message.ToString()); } return conn; } #endregion
#region 获取数据源连接符
/// <summary>
/// 数据源ID（GUID)
/// </summary>
/// <param name="dbId"></param>
/// <returns></returns>
public static void GetDataBaseConnect() { ICSSoft.Frame.Data.DAL.APPConfigForOracl.DBLinkClass item = ICSSoft.Frame.Data.DAL.APPConfigForOracl.AppConfig.GetDataBaseClass(connstr); if (item != null) { DBServerIP = item.DBIpAddress; OracleSID = item.DBName; DBUserName = item.DBUser; DBPassword = item.DBPwd; } } #endregion
#region 设置OracleCommand对象
/// <param name="cmd">OracleCommand对象 </param>
/// <param name="cmdText">命令文本</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdParms">参数集合</param>
private static void SetCommand(OracleCommand cmd, string cmdText, CommandType cmdType, OracleParameter[] cmdParms) { cmd.Connection = conn; cmd.CommandText = cmdText; cmd.CommandType = cmdType; if (cmdParms != null) { cmd.Parameters.AddRange(cmdParms); } } #endregion
#region 执行相应的Oracle sql语句，返回相应的DataSet对象
/// <param name="sqlstr">sql语句</param>
/// <returns>返回相应的DataSet对象</returns>
public static DataSet GetDataSet(string sqlstr) { DataSet set = new DataSet(); try { init(); OracleDataAdapter adp = new OracleDataAdapter(sqlstr, conn); adp.Fill(set); conn.Close(); } catch (Exception e) { throw new Exception(e.Message.ToString()); } return set; } #endregion
#region 执行sql语句，返回DataSet对象
/// <param name="sqlstr">sql语句</param>
/// <param name="tableName">表名</param>
/// <returns>返回DataSet对象</returns>
public static DataSet GetDataSet(string sqlstr, string tableName) { DataSet set = new DataSet(); try { init(); OracleDataAdapter adp = new OracleDataAdapter(sqlstr, conn); adp.Fill(set, tableName); conn.Close(); } catch (Exception e) { throw new Exception(e.Message.ToString()); } return set; } #endregion
#region 执行不带参数的sql语句，返回受影响的行数
/// <param name="cmdstr">增，删，改sql语句</param>
/// <returns>返回受影响的行数</returns>
public static int ExecuteNonQuery(string cmdText) { int count; try { init(); cmd = new OracleCommand(cmdText, conn); count = cmd.ExecuteNonQuery(); conn.Close(); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return count; } #endregion
#region 执行带参数的Oracle sql语句或存储过程，返回行数
/// <param name="cmdText">带参数的sql语句和存储过程名</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdParms">参数集合</param>
/// <returns>返回受影响的行数</returns>
public static int ExecuteNonQuery(string cmdText, CommandType cmdType, OracleParameter[] cmdParms) { int count; try { init(); cmd = new OracleCommand(); SetCommand(cmd, cmdText, cmdType, cmdParms); count = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); conn.Close(); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return count; } #endregion
#region 执行不带参数sql语句，返回一个从数据源读取数据的OracleDataReader对象
/// <param name="cmdstr">相应的sql语句</param>
/// <returns>返回一个从数据源读取数据的OracleDataReader对象</returns>
public static OracleDataReader ExecuteReader(string cmdText) { OracleDataReader reader; try { init(); cmd = new OracleCommand(cmdText, conn); reader = cmd.ExecuteReader(CommandBehavior.CloseConnection); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return reader; } #endregion
#region 执行带参数的sql语句或存储过程，返回一个从数据源读取数据的OracleDataReader对象
/// <param name="cmdText">sql语句或存储过程名</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdParms">参数集合</param>
/// <returns>返回一个从数据源读取数据的OracleDataReader对象</returns>
public static OracleDataReader ExecuteReader(string cmdText, CommandType cmdType, OracleParameter[] cmdParms) { OracleDataReader reader; try { init(); cmd = new OracleCommand(); SetCommand(cmd, cmdText, cmdType, cmdParms); reader = cmd.ExecuteReader(CommandBehavior.CloseConnection); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return reader; } #endregion
#region 执行不带参数sql语句,返回结果集首行首列的值object
/// <param name="cmdstr">相应的sql语句</param>
/// <returns>返回结果集首行首列的值object</returns>
public static object ExecuteScalar(string cmdText) { object obj; try { init(); cmd = new OracleCommand(cmdText, conn); obj = cmd.ExecuteScalar(); conn.Close(); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return obj; } #endregion
#region 执行带参数sql语句或存储过程,返回结果集首行首列的值object
/// <param name="cmdText">sql语句或存储过程名</param>
/// <param name="cmdType">命令类型</param>
/// <param name="cmdParms">返回结果集首行首列的值object</param>
/// <returns></returns>
public static object ExecuteScalar(string cmdText, CommandType cmdType, OracleParameter[] cmdParms) { object obj; try { init(); cmd = new OracleCommand(); SetCommand(cmd, cmdText, cmdType, cmdParms); obj = cmd.ExecuteScalar(); conn.Close(); } catch (Exception ex) { throw new Exception(ex.Message.ToString()); } return obj; } #endregion
}}
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