using Epost.Common;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.OracleClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Epost.DAL
{
public class OrcaleDB
{
//数据库连接字符串
private readonly static string connstr = ConfigurationManager.ConnectionStrings["OraMidConnString"].ConnectionString;
///
/// 执行数据库查询操作,返回受影响的行数
///
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作影响的数据行数
internal static int ExecuteNonQuery(string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
int result = 0;
try
{
PrepareCommand(command, connection, null, CommandType.Text, cmdText, commandParameters);
result = command.ExecuteNonQuery();
command.Parameters.Clear();
}
catch
{
//throw;
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return result;
}
///
/// 执行数据库事务查询操作,返回受影响的行数
///
/// 数据库事务对象
/// Command类型
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前事务查询操作影响的数据行数
internal static string ExecuteNonQueryProd(CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
int result = 0;
string res = "1";
try
{
PrepareCommand(command, connection, null, cmdType, cmdText, commandParameters);
result = command.ExecuteNonQuery();
command.Parameters.Clear();
string IN_SKU = command.Parameters["IN_SKU"].Value.ToString();
string OUT_Return_Code = command.Parameters["OUT_Return_Code"].Value.ToString();
if (!string.IsNullOrEmpty(OUT_Return_Code))
{
if (OUT_Return_Code.Substring(0, 3) == "000")
{
LogHelper.WriteLogInfo("调用存储过程成功!!" + OUT_Return_Code);
res = IN_SKU;
}
else {
LogHelper.WriteLogInfo("调用存储过程失败!!" + OUT_Return_Code);
res = "1";
}
}
return res;
}
catch(Exception ex)
{
LogHelper.WriteLogInfo("Oracle数据库执行错误:"+ex.Message);
//throw;
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return res;
}
///
/// 执行数据库查询操作,返回受影响的行数
///
/// Oracle数据库连接对象
/// Command类型
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作影响的数据行数
internal static int ExecuteNonQuery(OracleConnection connection, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
{
if (connection == null) throw new ArgumentNullException("当前数据库连接不存在");
OracleCommand command = new OracleCommand();
int result = 0;
try
{
PrepareCommand(command, connection, null, cmdType, cmdText, commandParameters);
result = command.ExecuteNonQuery();
command.Parameters.Clear();
}
catch(Exception ex)
{
//throw;
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return result;
}
///
/// 执行数据库查询操作,返回OracleDataReader类型的内存结果集
///
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作返回的OracleDataReader类型的内存结果集
internal static OracleDataReader ExecuteReader(string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
OracleDataReader reader = null;
try
{
PrepareCommand(command, connection, null, CommandType.Text, cmdText, commandParameters);
reader = command.ExecuteReader(CommandBehavior.CloseConnection);
command.Parameters.Clear();
return reader;
}
catch(Exception ex)
{
command.Dispose();
connection.Close();
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
return null;
//throw;
}
}
///
/// 执行数据库查询操作,返回DataSet类型的结果集
///
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作返回的DataSet类型的结果集
internal static DataSet ExecuteDataSet(string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
DataSet dataset = null;
try
{
PrepareCommand(command, connection, null, CommandType.Text, cmdText, commandParameters);
OracleDataAdapter adapter = new OracleDataAdapter();
adapter.SelectCommand = command;
dataset = new DataSet();
adapter.Fill(dataset);
command.Parameters.Clear();
}
catch(Exception ex)
{
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
//throw;
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return dataset;
}
///
/// 执行数据库查询操作,返回DataTable类型的结果集
///
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作返回的DataTable类型的结果集
internal static DataTable ExecuteDataTable(string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
DataTable table = null;
try
{
PrepareCommand(command, connection, null, CommandType.Text, cmdText, commandParameters);
OracleDataAdapter adapter = new OracleDataAdapter();
adapter.SelectCommand = command;
table = new DataTable();
adapter.Fill(table);
command.Parameters.Clear();
}
catch(Exception ex)
{
//throw;
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return table;
}
///
/// 执行数据库查询操作,返回结果集中位于第一行第一列的Object类型的值
///
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作返回的结果集中位于第一行第一列的Object类型的值
internal static object ExecuteScalar(string cmdText, params OracleParameter[] commandParameters)
{
OracleCommand command = new OracleCommand();
OracleConnection connection = new OracleConnection(connstr);
object result = null;
try
{
PrepareCommand(command, connection, null, CommandType.Text, cmdText, commandParameters);
result = command.ExecuteScalar();
command.Parameters.Clear();
}
catch
{
//throw;
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return result;
}
///
/// 执行数据库事务查询操作,返回结果集中位于第一行第一列的Object类型的值
///
/// 一个已存在的数据库事务对象
/// 命令类型
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前事务查询操作返回的结果集中位于第一行第一列的Object类型的值
internal static object ExecuteScalar(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
{
if (transaction == null) throw new ArgumentNullException("当前数据库事务不存在");
OracleConnection connection = transaction.Connection;
if (connection == null) throw new ArgumentException("当前事务所在的数据库连接不存在");
OracleCommand command = new OracleCommand();
object result = null;
try
{
PrepareCommand(command, connection, transaction, commandType, commandText, commandParameters);
result = command.ExecuteScalar();
command.Parameters.Clear();
}
catch(Exception ex)
{
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
// throw;
}
finally
{
transaction.Dispose();
command.Dispose();
connection.Close();
connection.Dispose();
}
return result;
}
///
/// 执行数据库查询操作,返回结果集中位于第一行第一列的Object类型的值
///
/// 数据库连接对象
/// Command类型
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
/// 当前查询操作返回的结果集中位于第一行第一列的Object类型的值
internal static object ExecuteScalar(OracleConnection connection, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
{
if (connection == null) throw new ArgumentException("当前数据库连接不存在");
OracleCommand command = new OracleCommand();
object result = null;
try
{
PrepareCommand(command, connection, null, cmdType, cmdText, commandParameters);
result = command.ExecuteScalar();
command.Parameters.Clear();
}
catch(Exception ex)
{
LogHelper.WriteLogInfo("Oracle数据库执行错误:" + ex.Message);
//throw;
}
finally
{
command.Dispose();
connection.Close();
connection.Dispose();
}
return result;
}
///
/// 执行数据库命令前的准备工作
///
/// Command对象
/// 数据库连接对象
/// 事务对象
/// Command类型
/// Oracle存储过程名称或PL/SQL命令
/// 命令参数集合
private static void PrepareCommand(OracleCommand command, OracleConnection connection, OracleTransaction trans, CommandType cmdType, string cmdText, OracleParameter[] commandParameters)
{
if (connection.State != ConnectionState.Open) connection.Open();
command.Connection = connection;
command.CommandText = cmdText;
command.CommandType = cmdType;
if (trans != null) command.Transaction = trans;
if (commandParameters != null)
{
foreach (OracleParameter parm in commandParameters)
command.Parameters.Add(parm);
}
}
///
/// 将.NET日期时间类型转化为Oracle兼容的日期时间格式字符串
///
/// .NET日期时间类型对象
/// Oracle兼容的日期时间格式字符串(如该字符串:TO_DATE('2007-12-1','YYYY-MM-DD'))
internal static string GetOracleDateFormat(DateTime date)
{
return "TO_DATE('" + date.ToString("yyyy-M-dd") + "','YYYY-MM-DD')";
}
///
/// 将.NET日期时间类型转化为Oracle兼容的日期格式字符串
///
/// .NET日期时间类型对象
/// Oracle日期时间类型格式化限定符
/// Oracle兼容的日期时间格式字符串(如该字符串:TO_DATE('2007-12-1','YYYY-MM-DD'))
internal static string GetOracleDateFormat(DateTime date, string format)
{
if (format == null || format.Trim() == "") format = "YYYY-MM-DD";
return "TO_DATE('" + date.ToString("yyyy-M-dd") + "','" + format + "')";
}
///
/// 将指定的关键字处理为模糊查询时的合法参数值
///
/// 待处理的查询关键字
/// 过滤后的查询关键字
internal static string HandleLikeKey(string source)
{
if (source == null || source.Trim() == "") return null;
source = source.Replace("[", "[]]");
source = source.Replace("_", "[_]");
source = source.Replace("%", "[%]");
return ("%" + source + "%");
}
}
}