582 lines
24 KiB
C#
582 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Configuration;
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using System.Data;
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using System.Data.OracleClient;
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using System.Collections;
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using CRM.Core.Model;
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namespace CRM.Core.DAL
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{
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public abstract class OracleHelper
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{
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//Read the connection strings from the configuration file
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//public static readonly string ConnectionStringLocalTransaction = ConfigurationManager.ConnectionStrings["AYCRMCONN"].ConnectionString;
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public static readonly string ZxdCRMConn = ConStringHelper.ZxdCRMConn;
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//public static readonly string QhCrmConn = ConStringHelper.QhCrmConn;
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//Create a hashtable for the parameter cached
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private static Hashtable parmCache = Hashtable.Synchronized(new Hashtable());
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/// <summary>
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/// Execute a database query which does not include a select
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/// </summary>
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/// <param name="connString">Connection string to database</param>
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/// <param name="cmdType">Command type either stored procedure or SQL</param>
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/// <param name="cmdText">Acutall SQL Command</param>
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/// <param name="commandParameters">Parameters to bind to the command</param>
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/// <returns></returns>
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public static int ExecuteNonQuery(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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// Create a new Oracle command
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OracleCommand cmd = new OracleCommand();
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//Create a connection
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using (OracleConnection connection = new OracleConnection(connectionString))
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{
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try
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{
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//Prepare the command
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PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);
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//Execute the command
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int val = cmd.ExecuteNonQuery();
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cmd.Parameters.Clear();
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return val;
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}
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finally
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{
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if (connection.State == ConnectionState.Open)
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connection.Close();
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}
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}
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}
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/// <summary>
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/// dataTable批量导入数据
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/// </summary>
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/// <param name="connectionString">连接字符串</param>
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/// <param name="tableName">表名</param>
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/// <param name="dataTable">dataTable数据源</param>
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public static void OracleBulkInsert(string connectionString, string tableName, DataTable dataTable)
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{
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if (dataTable.Rows.Count == 0)
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{
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return;
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}
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using (Oracle.DataAccess.Client.OracleBulkCopy oracleBulkCopy = new Oracle.DataAccess.Client.OracleBulkCopy(connectionString, Oracle.DataAccess.Client.OracleBulkCopyOptions.UseInternalTransaction))
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{
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try
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{
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oracleBulkCopy.DestinationTableName = tableName;
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for (int i = 0; i < dataTable.Columns.Count; i++)
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{
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oracleBulkCopy.ColumnMappings.Add(dataTable.Columns[i].ColumnName,
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dataTable.Columns[i].ColumnName);
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}
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oracleBulkCopy.WriteToServer(dataTable);
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}
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finally
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{
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if (oracleBulkCopy.Connection.State == ConnectionState.Open)
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oracleBulkCopy.Connection.Close();
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}
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}
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}
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/// <summary>
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/// dataTable批量导入数据
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/// </summary>
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/// <param name="oracleBulkCopy">传入操作对象</param>
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/// <param name="tableName">数据库表名</param>
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/// <param name="dataTable">要导入的dataTable</param>
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public static void OracleBulkInsert(Oracle.DataAccess.Client.OracleBulkCopy oracleBulkCopy, string tableName, DataTable dataTable)
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{
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if (dataTable.Rows.Count == 0)
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{
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return;
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}
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try
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{
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oracleBulkCopy.DestinationTableName = tableName;
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for (int i = 0; i < dataTable.Columns.Count; i++)
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{
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oracleBulkCopy.ColumnMappings.Add(dataTable.Columns[i].ColumnName,
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dataTable.Columns[i].ColumnName);
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}
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oracleBulkCopy.WriteToServer(dataTable);
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}
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finally
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{
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if (oracleBulkCopy.Connection.State == ConnectionState.Open)
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oracleBulkCopy.Connection.Close();
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}
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}
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/// <summary>
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/// dataTable批量导入数据(连接字符串默认为AYCRMConn)
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/// </summary>
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/// <param name="tableName">表名</param>
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/// <param name="dataTable">dataTable数据源</param>
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public static void OracleBulkInsert(string tableName, DataTable dataTable)
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{
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OracleBulkInsert(ZxdCRMConn, tableName, dataTable);
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}
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/// <summary>
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/// 默认的连接串为AYCRMConn
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/// </summary>
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/// <param name="cmdType"></param>
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/// <param name="cmdText"></param>
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/// <param name="commandParameters"></param>
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/// <returns></returns>
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public static int ExecuteNonQuery(CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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return ExecuteNonQuery(ZxdCRMConn, cmdType, cmdText, commandParameters);
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}
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/// <summary>
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/// Execute an OracleCommand (that returns no resultset) against an existing database transaction
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/// using the provided parameters.
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/// </summary>
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/// <remarks>
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/// e.g.:
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/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
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/// </remarks>
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/// <param name="trans">an existing database transaction</param>
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/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">the stored procedure name or PL/SQL command</param>
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/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
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/// <returns>an int representing the number of rows affected by the command</returns>
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public static int ExecuteNonQuery(OracleTransaction trans, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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OracleCommand cmd = new OracleCommand();
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PrepareCommand(cmd, trans.Connection, trans, cmdType, cmdText, commandParameters);
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int val = cmd.ExecuteNonQuery();
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cmd.Parameters.Clear();
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return val;
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}
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/// <summary>
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/// Execute an OracleCommand (that returns no resultset) against an existing database connection
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/// using the provided parameters.
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/// </summary>
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/// <remarks>
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/// e.g.:
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/// int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
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/// </remarks>
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/// <param name="conn">an existing database connection</param>
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/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">the stored procedure name or PL/SQL command</param>
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/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
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/// <returns>an int representing the number of rows affected by the command</returns>
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public static int ExecuteNonQuery(OracleConnection connection, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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try
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{
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OracleCommand cmd = new OracleCommand();
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PrepareCommand(cmd, connection, null, cmdType, cmdText, commandParameters);
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int val = cmd.ExecuteNonQuery();
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cmd.Parameters.Clear();
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return val;
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}
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finally
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{
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if(connection.State == ConnectionState.Open)
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connection.Close();
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}
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}
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/// <summary>
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/// 返回一个dataset
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/// </summary>
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/// <param name="connectionstring"></param>
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/// <param name="cmdType"></param>
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/// <param name="cmdText"></param>
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/// <param name="commandParameters"></param>
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/// <returns></returns>
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public static DataSet DataQueray(string connectionstring, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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OracleConnection con = new OracleConnection(connectionstring);
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OracleCommand cmd = new OracleCommand(cmdText, con);
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try
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{
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cmd.CommandType = cmdType;
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cmd.Parameters.AddRange(commandParameters);
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OracleDataAdapter da = new OracleDataAdapter(cmd);
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DataSet ds = new DataSet();
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da.Fill(ds);
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cmd.Parameters.Clear();
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return ds;
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}
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finally
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{
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if (con.State == ConnectionState.Open)
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con.Close();
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}
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}
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public static DataSet GetPageList(string connectionstring, CommandType cmdType, string cmdText, string orderField, string orderType, int pageIndex, int pageSize, ref int count, params OracleParameter[] commandParameters)
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{
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StringBuilder builder = new StringBuilder();
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OracleConnection con = new OracleConnection(connectionstring);
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try
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{
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string sqlcount = "Select Count(1) From (" + cmdText + ") t";
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count = Convert.ToInt32( ExecuteScalar(connectionstring, CommandType.Text, sqlcount, commandParameters));
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int num = (pageIndex - 1) * pageSize;
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int num2 = pageSize;
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int num3 = num + num2 + 1;
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builder.Append("select * from(select t.*,rownum rn from(" + cmdText + " order by " + orderField + " " + orderType + ") t where rownum<" + num3 + ") where rn>" + num + "");
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OracleCommand cmd = new OracleCommand(builder.ToString(), con);
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cmd.CommandType = cmdType;
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cmd.Parameters.AddRange(commandParameters);
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OracleDataAdapter da = new OracleDataAdapter(cmd);
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DataSet ds = new DataSet();
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da.Fill(ds);
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cmd.Parameters.Clear();
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return ds;
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}
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catch
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{
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throw;
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}
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finally
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{
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if (con.State == ConnectionState.Open)
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con.Close();
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}
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}
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public static DataSet DataQueray(OracleTransaction transaction, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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if (transaction == null)
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throw new ArgumentNullException("transaction");
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if (transaction != null && transaction.Connection == null)
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throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
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OracleCommand cmd = new OracleCommand();
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PrepareCommand(cmd, transaction.Connection, transaction, cmdType, cmdText, commandParameters);
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using (OracleDataAdapter da = new OracleDataAdapter(cmd))
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{
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DataSet ds = new DataSet();
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da.Fill(ds);
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cmd.Parameters.Clear();
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return ds;
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}
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//OracleConnection con = new OracleConnection(connectionstring);
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//OracleCommand cmd = new OracleCommand(cmdText, con);
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//try
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//{
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// cmd.CommandType = cmdType;
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// cmd.Parameters.AddRange(commandParameters);
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// OracleDataAdapter da = new OracleDataAdapter(cmd);
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// DataSet ds = new DataSet();
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// da.Fill(ds);
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// cmd.Parameters.Clear();
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// return ds;
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//}
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//catch
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//{
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// con.Close();
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// throw;
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//}
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}
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/// <summary>
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/// 默认的连接串为AYCRMConn
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/// </summary>
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/// <param name="cmdType"></param>
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/// <param name="cmdText"></param>
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/// <param name="commandParameters"></param>
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/// <returns></returns>
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public static DataSet DataQueray(CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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return DataQueray(ZxdCRMConn, cmdType, cmdText, commandParameters);
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}
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/// <summary>
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/// Execute a select query that will return a result set
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/// </summary>
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/// <param name="connString">Connection string</param>
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/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">the stored procedure name or PL/SQL command</param>
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/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
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/// <returns></returns>
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public static OracleDataReader ExecuteReader(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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//Create the command and connection
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OracleCommand cmd = new OracleCommand();
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OracleConnection conn = new OracleConnection(connectionString);
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try
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{
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//Prepare the command to execute
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PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
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//Execute the query, stating that the connection should close when the resulting datareader has been read
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OracleDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
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cmd.Parameters.Clear();
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return rdr;
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}
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finally
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{
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conn.Close();
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}
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}
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/// <summary>
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/// 默认的连接串为AYCRMConn
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/// </summary>
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/// <param name="cmdType"></param>
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/// <param name="cmdText"></param>
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/// <param name="commandParameters"></param>
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/// <returns></returns>
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public static OracleDataReader ExecuteReader(CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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return ExecuteReader(ZxdCRMConn, cmdType, cmdText, commandParameters);
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}
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/// <summary>
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/// Execute an OracleCommand that returns the first column of the first record against the database specified in the connection string
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/// using the provided parameters.
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/// </summary>
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/// <remarks>
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/// e.g.:
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/// Object obj = ExecuteScalar(connString, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
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/// </remarks>
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/// <param name="connectionString">a valid connection string for a SqlConnection</param>
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/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">the stored procedure name or PL/SQL command</param>
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/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
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/// <returns>An object that should be converted to the expected type using Convert.To{Type}</returns>
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public static object ExecuteScalar(string connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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OracleCommand cmd = new OracleCommand();
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using (OracleConnection conn = new OracleConnection(connectionString))
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{
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try
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{
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PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
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object val = cmd.ExecuteScalar();
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cmd.Parameters.Clear();
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return val;
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}
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finally
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{
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conn.Close();
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}
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}
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}
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/// <summary>
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/// 默认的连接串为AYCRMConn
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/// </summary>
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/// <param name="cmdType"></param>
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/// <param name="cmdText"></param>
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/// <param name="commandParameters"></param>
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/// <returns></returns>
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public static object ExecuteScalar(CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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return ExecuteScalar(ZxdCRMConn, cmdType, cmdText, commandParameters);
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}
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/// <summary>
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/// Execute a OracleCommand (that returns a 1x1 resultset) against the specified SqlTransaction
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/// using the provided parameters.
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/// </summary>
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/// <param name="transaction">A valid SqlTransaction</param>
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/// <param name="commandType">The CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">The stored procedure name or PL/SQL command</param>
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/// <param name="commandParameters">An array of OracleParamters used to execute the command</param>
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/// <returns>An object containing the value in the 1x1 resultset generated by the command</returns>
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public static object ExecuteScalar(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
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{
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if (transaction == null)
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throw new ArgumentNullException("transaction");
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if (transaction != null && transaction.Connection == null)
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throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
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// Create a command and prepare it for execution
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OracleCommand cmd = new OracleCommand();
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PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters);
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// Execute the command & return the results
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object retval = cmd.ExecuteScalar();
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// Detach the SqlParameters from the command object, so they can be used again
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cmd.Parameters.Clear();
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return retval;
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}
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/// <summary>
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/// Execute an OracleCommand that returns the first column of the first record against an existing database connection
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/// using the provided parameters.
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/// </summary>
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/// <remarks>
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/// e.g.:
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/// Object obj = ExecuteScalar(conn, CommandType.StoredProcedure, "PublishOrders", new OracleParameter(":prodid", 24));
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/// </remarks>
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/// <param name="conn">an existing database connection</param>
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/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
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/// <param name="commandText">the stored procedure name or PL/SQL command</param>
|
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/// <param name="commandParameters">an array of OracleParamters used to execute the command</param>
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/// <returns>An object that should be converted to the expected type using Convert.To{Type}</returns>
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public static object ExecuteScalar(OracleConnection connectionString, CommandType cmdType, string cmdText, params OracleParameter[] commandParameters)
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{
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try
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{
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OracleCommand cmd = new OracleCommand();
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PrepareCommand(cmd, connectionString, null, cmdType, cmdText, commandParameters);
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object val = cmd.ExecuteScalar();
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cmd.Parameters.Clear();
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return val;
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}
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finally
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{
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connectionString.Close();
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}
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}
|
|
|
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/// <summary>
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/// Add a set of parameters to the cached
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/// </summary>
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/// <param name="cacheKey">Key value to look up the parameters</param>
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/// <param name="commandParameters">Actual parameters to cached</param>
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public static void CacheParameters(string cacheKey, params OracleParameter[] commandParameters)
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{
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parmCache[cacheKey] = commandParameters;
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}
|
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/// <summary>
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/// Fetch parameters from the cache
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/// </summary>
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/// <param name="cacheKey">Key to look up the parameters</param>
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/// <returns></returns>
|
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public static OracleParameter[] GetCachedParameters(string cacheKey)
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{
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OracleParameter[] cachedParms = (OracleParameter[])parmCache[cacheKey];
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if (cachedParms == null)
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return null;
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|
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// If the parameters are in the cache
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OracleParameter[] clonedParms = new OracleParameter[cachedParms.Length];
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// return a copy of the parameters
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for (int i = 0, j = cachedParms.Length; i < j; i++)
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clonedParms[i] = (OracleParameter)((ICloneable)cachedParms[i]).Clone();
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return clonedParms;
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}
|
|
|
|
/// <summary>
|
|
/// Internal function to prepare a command for execution by the database
|
|
/// </summary>
|
|
/// <param name="cmd">Existing command object</param>
|
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/// <param name="conn">Database connection object</param>
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/// <param name="trans">Optional transaction object</param>
|
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/// <param name="cmdType">Command type, e.g. stored procedure</param>
|
|
/// <param name="cmdText">Command test</param>
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/// <param name="commandParameters">Parameters for the command</param>
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private static void PrepareCommand(OracleCommand cmd, OracleConnection conn, OracleTransaction trans, CommandType cmdType, string cmdText, OracleParameter[] commandParameters)
|
|
{
|
|
|
|
//Open the connection if required
|
|
if (conn.State != ConnectionState.Open)
|
|
conn.Open();
|
|
|
|
//Set up the command
|
|
cmd.Connection = conn;
|
|
cmd.CommandText = cmdText;
|
|
cmd.CommandType = cmdType;
|
|
|
|
//Bind it to the transaction if it exists
|
|
if (trans != null)
|
|
cmd.Transaction = trans;
|
|
|
|
// Bind the parameters passed in
|
|
if (commandParameters != null)
|
|
{
|
|
foreach (OracleParameter parm in commandParameters)
|
|
cmd.Parameters.Add(parm);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converter to use boolean data type with Oracle
|
|
/// </summary>
|
|
/// <param name="value">Value to convert</param>
|
|
/// <returns></returns>
|
|
public static string OraBit(bool value)
|
|
{
|
|
if (value)
|
|
return "Y";
|
|
else
|
|
return "N";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converter to use boolean data type with Oracle
|
|
/// </summary>
|
|
/// <param name="value">Value to convert</param>
|
|
/// <returns></returns>
|
|
public static bool OraBool(string value)
|
|
{
|
|
if (value.Equals("Y"))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
#region 扩展方法
|
|
/// <summary>
|
|
/// 批量插入数据
|
|
/// </summary>
|
|
/// <param name="dt">要插入的数据</param>
|
|
/// <param name="targetTable">数据库中的表</param>
|
|
public static void BulkToDB(string connectionString, DataTable dt, string targetTable, int timeOut = 300)
|
|
{
|
|
if (dt.Rows.Count == 0)
|
|
{
|
|
return;
|
|
}
|
|
using (Oracle.DataAccess.Client.OracleBulkCopy oracleBulkCopy = new Oracle.DataAccess.Client.OracleBulkCopy(connectionString, Oracle.DataAccess.Client.OracleBulkCopyOptions.UseInternalTransaction))
|
|
{
|
|
try
|
|
{
|
|
oracleBulkCopy.DestinationTableName = targetTable;
|
|
for (int i = 0; i < dt.Columns.Count; i++)
|
|
{
|
|
oracleBulkCopy.ColumnMappings.Add(dt.Columns[i].ColumnName,
|
|
dt.Columns[i].ColumnName);
|
|
}
|
|
oracleBulkCopy.WriteToServer(dt);
|
|
}
|
|
finally
|
|
{
|
|
oracleBulkCopy.Connection.Close();
|
|
}
|
|
}
|
|
}
|
|
|
|
public static void BulkToDB(DataTable dt, string targetTable, int timeOut = 300)
|
|
{
|
|
BulkToDB(ZxdCRMConn, dt, targetTable, timeOut);
|
|
}
|
|
#endregion
|
|
}
|
|
}
|