/******************************
* 说明：数据库操作类
* 创建人：龚宇超
* 创建日期：2017-07-24
* 修改人：
* 修改日期：
* 修改备注：
* 版本：1.0.0.0
******************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Data.Odbc;

namespace Lskj.Core
{
    /// <summary>
    /// 数据库操作类
    /// </summary>
    public static class OdbcHelper
    {
        /// <summary>
        /// 数据连接
        /// </summary>
        public static OdbcConnection _connection;//SqlConnection
        /// <summary>
        /// 请求超时时间
        /// </summary>
        public static int CommandTimeout;

        //#region ExecuteAdapter

        ///// <summary>
        ///// <para>说明：获取适配器</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>SqlDataAdapter.</returns>
        //public static OdbcDataAdapter ExecuteAdapter(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    OdbcDataAdapter adapter;
        //    OdbcCommand cmd = new OdbcCommand();
        //    try
        //    {
        //        PrepareCommand(cmd, _connection, null, cmdType, cmdText, commandParameters);
        //        adapter = new OdbcDataAdapter(cmd);
        //    }
        //    catch
        //    {
        //        throw;
        //    }
        //    return adapter;
        //}


        ///// <summary>
        ///// <para>说明：获取适配器</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>SqlDataAdapter.</returns>
        //public static OdbcDataAdapter ExecuteAdapter(CommandType cmdType, string cmdText)
        //{
        //    OdbcDataAdapter adapter;
        //    OdbcCommand cmd = new OdbcCommand();
        //    try
        //    {
        //        PrepareCommand(cmd, _connection, null, cmdType, cmdText, null);
        //        adapter = new OdbcDataAdapter(cmd);
        //    }
        //    catch
        //    {
        //        throw;
        //    }
        //    return adapter;
        //}
        //#endregion

        //#region ExecuteDataTable
        ///// <summary>
        ///// <para>说明：执行sql返回DataTable</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>DataTable.</returns>
        public static DataTable ExecuteDataTable(string cmdText)
        {
            return ExecuteDataSet(cmdText).Tables[0];
        }
        ///// <summary>
        ///// <para>说明：执行sql返回DataTable</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>DataTable.</returns>
        //public static DataTable ExecuteDataTable(string cmdText, params SqlParameter[] commandParameters)
        //{
        //    return ExecuteDataSet(CommandType.Text, cmdText, "temp", commandParameters).Tables[0];
        //}

        ///// <summary>
        ///// <para>说明：执行sql返回指定字段值</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-08-15 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="fieldName">Name of the field.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteObject(string fieldName, string cmdText)
        //{
        //    object result = null;
        //    try
        //    {
        //        result = ExecuteDataSet(cmdText).Tables[0].Rows[0][fieldName];
        //    }
        //    catch (Exception)
        //    {

        //    }
        //    return result;
        //}
        ///// <summary>
        ///// <para>说明：执行sql返回指定字段值</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-11-27 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="fieldName">Name of the field.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteObject(string fieldName, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    object result = null;
        //    try
        //    {
        //        result = ExecuteDataSet(CommandType.Text, cmdText, "temp", commandParameters).Tables[0].Rows[0][fieldName];
        //    }
        //    catch (Exception)
        //    {

        //    }
        //    return result;
        //}
        ///// <summary>
        ///// <para>说明：执行sql返回指定字段值</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-08-15 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="fieldName">Name of the field.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>System.Object.</returns>
        //public static string ExecuteString(string fieldName, string cmdText)
        //{
        //    object obj = ExecuteObject(fieldName, cmdText);
        //    return obj == null ? "" : obj.ToString();
        //}
        ///// <summary>
        ///// <para>说明：执行sql返回指定字段值</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-11-27 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="fieldName">Name of the field.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>System.String.</returns>
        //public static string ExecuteString(string fieldName, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    object obj = ExecuteObject(fieldName, cmdText, commandParameters);
        //    return obj == null ? "" : obj.ToString();
        //}
        //#endregion

        //#region ExecuteDataSet

        ///// <summary>
        ///// <para>说明：查询结果集</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="tabName">Name of the tab.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>DataSet.</returns>
        //public static DataSet ExecuteDataSet(int cmdType, string cmdText, string tabName, params SqlParameter[] commandParameters)
        //{
        //    CommandType _cmdType = CommandType.Text;
        //    switch (cmdType)
        //    {
        //        case 4:
        //            _cmdType = CommandType.StoredProcedure;
        //            break;
        //        case 512:
        //            _cmdType = CommandType.TableDirect;
        //            break;
        //    }
        //    return ExecuteDataSet(_cmdType, cmdText, tabName, commandParameters);
        //}
        ///// <summary>
        ///// <para>说明：查询结果集</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">语句类型存储过程或者sql语句</param>
        ///// <param name="cmdText">执行内容</param>
        ///// <param name="tabName">表名</param>
        ///// <param name="commandParameters">参数</param>
        ///// <returns>DataSet.</returns>
        public static DataSet ExecuteDataSet(CommandType cmdType, string cmdText, string tabName, params SqlParameter[] commandParameters)
        {
            DataSet set2;
            OdbcCommand cmd = new OdbcCommand();
            try
            {
                PrepareCommand(cmd, _connection, null, cmdType, cmdText, commandParameters);
                OdbcDataAdapter adapter = new OdbcDataAdapter(cmd);
                DataSet dataSet = new DataSet();
                adapter.Fill(dataSet, tabName);
                //adapter.FillSchema(dataSet, SchemaType.Mapped, tabName);
                set2 = dataSet;
            }
            catch (Exception e)
            {
                if (e.Message.StartsWith("在从服务器接收结果时发生传输级错误") ||
                    e.Message.StartsWith("在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误") ||
                    e.Message.StartsWith("在向服务器发送请求时发生传输级错误"))
                {
                    throw new Exception("无法连接服务器,请检查网络连接.");
                }
                else
                {
                    throw;
                }
            }
            finally
            {
                cmd.Dispose();
            }

            return set2;
        }
        ///// <summary>
        ///// <para>说明：查询结果集</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">语句类型存储过程或者sql语句</param>
        ///// <param name="cmdText">执行内容</param>
        ///// <param name="tabName">表名</param>
        ///// <returns>DataSet.</returns>
        public static DataSet ExecuteDataSet(CommandType cmdType, string cmdText, string tabName)
        {
            return ExecuteDataSet(cmdType, cmdText, tabName, null);
        }
        ///// <summary>
        ///// <para>说明：查询结果集</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdText">执行内容</param>
        ///// <returns>DataSet.</returns>
        public static DataSet ExecuteDataSet(string cmdText)
        {
            return ExecuteDataSet(CommandType.Text, cmdText, "temp");
        }
        ///// <summary>
        ///// <para>说明：查询结果集</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="procedureName">Name of the procedure.</param>
        ///// <param name="tabName">表名</param>
        ///// <param name="parameterNames">The parameter names.</param>
        ///// <param name="parameterValues">The parameter values.</param>
        ///// <returns>DataSet.</returns>
        //public static DataSet ExecuteDataSet(string procedureName, string tabName, string[] parameterNames, object[] parameterValues)
        //{
        //    DataSet set2;
        //    try
        //    {
        //        OdbcCommand cmd = new OdbcCommand(procedureName, _connection);
        //        cmd.CommandType = CommandType.StoredProcedure;

        //        if (parameterNames != null && parameterValues != null)
        //        {
        //            for (int i = 0; i < parameterNames.Length && i < parameterValues.Length; i++)
        //            {
        //                cmd.Parameters.AddWithValue(parameterNames[i], parameterValues[i]);
        //            }
        //        }
        //        OdbcDataAdapter adapter = new OdbcDataAdapter(cmd);
        //        DataSet dataSet = new DataSet();
        //        adapter.Fill(dataSet, tabName);
        //        set2 = dataSet;
        //    }
        //    catch
        //    {
        //        throw;
        //    }
        //    return set2;
        //}
        //#endregion

        #region ExecuteNonQuery
        /// <summary>
        /// <para>说明：执行sql语句或者存储过程</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-24 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="cmdType">Type of the command.</param>
        /// <param name="cmdText">The command text.</param>
        /// <param name="commandParameters">The command parameters.</param>
        /// <returns>System.Int32.</returns>
        public static int ExecuteNonQuery(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        {
            OdbcCommand cmd = new OdbcCommand();
            int num = 0;
            try
            {
                PrepareCommand(cmd, _connection, null, cmdType, cmdText, commandParameters);
                num = cmd.ExecuteNonQuery();
                cmd.Parameters.Clear();
            }
            catch (Exception e)
            {
                if (e.Message.StartsWith("在从服务器接收结果时发生传输级错误") ||
                    e.Message.StartsWith("在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误") ||
                    e.Message.StartsWith("在向服务器发送请求时发生传输级错误"))
                {
                    throw new Exception("无法连接服务器,请检查网络连接.");
                }
                else
                {
                    throw;
                }
            }
            finally
            {
                cmd.Dispose();
            }
            return num;
        }
        /// <summary>
        /// <para>说明：执行sql语句或者存储过程</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-24 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="cmdType">Type of the command.</param>
        /// <param name="cmdText">The command text.</param>
        /// <returns>System.Int32.</returns>
        public static int ExecuteNonQuery(CommandType cmdType, string cmdText)
        {
            return ExecuteNonQuery(CommandType.Text, cmdText, null);
        }
        /// <summary>
        /// <para>说明：执行sql语句或者存储过程</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-24 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="cmdText">The command text.</param>
        /// <returns>System.Int32.</returns>
        public static int ExecuteNonQuery(string cmdText)
        {
            return ExecuteNonQuery(CommandType.Text, cmdText);
        }
        #endregion

        //#region ExecuteReader
        ///// <summary>
        ///// <para>说明：执行sql语句或者存储过程并返回结果集（只读、只进）</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>SqlDataReader.</returns>
        //public static OdbcDataReader ExecuteReader(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    OdbcDataReader reader2;
        //    OdbcCommand cmd = new OdbcCommand();
        //    try
        //    {
        //        PrepareCommand(cmd, _connection, null, cmdType, cmdText, commandParameters);
        //        OdbcDataReader reader = cmd.ExecuteReader();
        //        cmd.Parameters.Clear();
        //        reader2 = reader;
        //    }
        //    catch
        //    {
        //        throw;
        //    }
        //    return reader2;
        //}
        //#endregion

        //#region ExecuteScalar
        ///// <summary>
        ///// <para>说明：执行sql语句或者存储过程并返回结果集第一行第一列</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="Connectionection">The connectionection.</param>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteScalar(OdbcConnection Connectionection, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    OdbcCommand cmd = new OdbcCommand();
        //    PrepareCommand(cmd, Connectionection, null, cmdType, cmdText, commandParameters);
        //    object obj2 = cmd.ExecuteScalar();
        //    cmd.Parameters.Clear();
        //    return obj2;
        //}
        ///// <summary>
        ///// <para>说明：执行sql语句或者存储过程并返回结果集第一行第一列</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <param name="commandParameters">The command parameters.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteScalar(CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        //{
        //    OdbcCommand cmd = new OdbcCommand();
        //    {
        //        PrepareCommand(cmd, _connection, null, cmdType, cmdText, commandParameters);
        //        object obj2 = cmd.ExecuteScalar();
        //        cmd.Parameters.Clear();
        //        return obj2;
        //    }
        //}
        ///// <summary>
        ///// <para>说明：执行sql语句或者存储过程并返回结果集第一行第一列</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-07-24 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdType">Type of the command.</param>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteScalar(CommandType cmdType, string cmdText)
        //{
        //    OdbcCommand cmd = new OdbcCommand();
        //    {
        //        PrepareCommand(cmd, _connection, null, cmdType, cmdText, null);
        //        object obj2 = cmd.ExecuteScalar();
        //        cmd.Parameters.Clear();
        //        return obj2;
        //    }
        //}
        ///// <summary>
        ///// <para>说明：执行sql语句或者存储过程并返回结果集第一行第一列</para>
        ///// <para>创建人：龚宇超</para>
        ///// <para>创建日期：2017-08-21 </para>
        ///// <para>修改人：</para>
        ///// <para>修改日期：</para>
        ///// <para>修改备注：</para>
        ///// <para>版本：1.0</para>
        ///// </summary>
        ///// <param name="cmdText">The command text.</param>
        ///// <returns>System.Object.</returns>
        //public static object ExecuteScalar(string cmdText)
        //{
        //    OdbcCommand cmd = new OdbcCommand();
        //    {
        //        PrepareCommand(cmd, _connection, null, CommandType.Text, cmdText, null);
        //        object obj2 = cmd.ExecuteScalar();
        //        cmd.Parameters.Clear();
        //        return obj2;
        //    }
        //}
        //#endregion

        #region PrepareCommand
        /// <summary>
        /// <para>说明： sql参数处理</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-24 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="cmd">The command.</param>
        /// <param name="Connection">The connection.</param>
        /// <param name="trans">The trans.</param>
        /// <param name="cmdType">Type of the command.</param>
        /// <param name="cmdText">The command text.</param>
        /// <param name="cmdParms">The command parms.</param>
        private static void PrepareCommand(OdbcCommand cmd, OdbcConnection Connection, OdbcTransaction trans, CommandType cmdType, string cmdText, SqlParameter[] cmdParms)
        {
            if (Connection.State != ConnectionState.Open)
            {
                Connection.Open();
            }
            cmd.Connection = Connection;
            cmd.CommandTimeout = CommandTimeout;
            cmd.CommandText = cmdText;
            if (trans != null)
            {
                cmd.Transaction = trans;
            }
            cmd.CommandType = cmdType;
            if (cmdParms != null)
            {
                foreach (SqlParameter parameter in cmdParms)
                {
                    cmd.Parameters.Add(parameter);
                }
            }
        }
        #endregion
    }
}