数据库如何实现共用

发布网友 发布时间：2022-04-28 23:35

我来回答

共2个回答

懂视网 时间：2022-05-01 11:52

//==================================================
// 作 者：文渊
// 日 期：2012/03/06
// 描 述：介绍本文件所要完成的功能以及背景信息等等
//==================================================
using System;
using System.Collections;
using System.Data;
using System.Text;
using System.Data.Common;
using System.Data.OleDb;
using System.Collections.Generic;
using System.Reflection;

using Microsoft.Practices.EnterpriseLibrary.Data;
using EFWCoreLib.CoreFrame.Orm;

namespace EFWCoreLib.CoreFrame.DbProvider
{
[Serializable]
public abstract class AbstractDatabase
{
/// <summary>
/// 数据库连接
/// </summary>
protected DbConnection connection = null; //数据库连接

/// <summary>
/// 数据库对象执行命令
/// </summary>
protected DbCommand command = null;

/// <summary>
/// 企业库数据库访问对象
/// </summary>
public Database database = null;

#region 属性

/// <summary>
/// 数据库事务
/// </summary>
protected DbTransaction transaction = null; //数据库事务

protected string _connString;
/// <summary>
/// 返回数据库连接字符串
/// </summary>
public string ConnectionString
{
get { return _connString; }
}

protected bool isInTransaction = false; //是否在事务中
/// <summary>
/// 返回是否处于事务中
/// </summary>
protected bool IsInTransaction
{
get { return this.isInTransaction; }
}

public int WorkId { get; set; }
//Entlib.config配置文件中配置的连接数据库的key
public string DbKey { get; set; }
//插件名称
public string PluginName { get; set; }
//数据库类型
public DatabaseType DbType { get; set; }

public abstract void TestDbConnection();

#endregion

/// <summary>
/// 启动一个事务
/// </summary>
public abstract void BeginTransaction();
/// <summary>
/// 提交一个事务
/// </summary>
public abstract void CommitTransaction();
/// <summary>
/// 回滚一个事务
/// </summary>
public abstract void RollbackTransaction();

#region 执行插入一条记录 适用于有 自动生成标识的列
public abstract int InsertRecord(string commandtext);
#endregion

#region 返回一个DataTable
public abstract DataTable GetDataTable(string commandtext);
public abstract DataTable GetDataTable(string storeProcedureName, params object[] parameters);
#endregion

#region 返回一个DataReader
public abstract IDataReader GetDataReader(string commandtext);
#endregion

#region 执行一个语句，返回执行情况
public abstract int DoCommand(string commandtext);
public abstract int DoCommand(string storeProcedureName, params object[] parameters);
#endregion

#region 执行一个命令返回一个数据结果
public abstract object GetDataResult(string commandtext);
public abstract object GetDataResult(string storeProcedureName, params object[] parameters);
#endregion

public abstract DataSet GetDataSet(string storeProcedureName, params object[] parameters);

#if !CSHARP30
public IEnumerable<dynamic> Query(string sql, object param)
{
connection = database.CreateConnection();
return connection.Query(PluginName,sql, param);
}
#else
public IEnumerable<IDictionary<string, object>> Query(string sql, object param)
{
connection = database.CreateConnection();
return connection.Query(sql, param);
}
#endif
public IEnumerable<T> Query<T>(string sql, object param)
{
connection = database.CreateConnection();
return connection.Query<T>(PluginName,sql, param, null, true, null, null);
}

public IEnumerable<TReturn> Query<TFirst, TSecond, TReturn>(string sql, Func<TFirst, TSecond, TReturn> map, object param)
{
connection = database.CreateConnection();
return connection.Query<TFirst, TSecond, TReturn>(PluginName,sql, map, param, null, true, "Id", null, null);
}

public IEnumerable<TReturn> Query<TFirst, TSecond, TThird, TReturn>(string sql, Func<TFirst, TSecond, TThird, TReturn> map, object param)
{
connection = database.CreateConnection();
return connection.Query<TFirst, TSecond, TThird, TReturn>(PluginName,sql, map, param, null, true, "Id", null, null);
}

public IEnumerable<TReturn> Query<TFirst, TSecond, TThird, TFourth, TReturn>(string sql, Func<TFirst, TSecond, TThird, TFourth, TReturn> map, object param)
{
connection = database.CreateConnection();
return connection.Query<TFirst, TSecond, TThird, TFourth, TReturn>(PluginName,sql, map, param, null, true, "Id", null, null);
}

public EFWCoreLib.CoreFrame.Orm.SqlMapper.GridReader QueryMultiple(string sql, object param)
{
connection = database.CreateConnection();
return connection.QueryMultiple(sql, param, null, null, null);
}

}

}

多类型数据库公共操作-对应数据库操作共用方法

标签：

热心网友 时间：2022-05-01 09:00