/// <summary>
/// 打开数据库连接（报错直接抛出异常，请主动捕获）
/// </summary>
public void CF_OpenConnect()
{
if (!m_isInitDataBase)
{
throw new Exception($"数据库未初始化！\n");
}
if (string.IsNullOrEmpty(CP_ConnectionString))
{
throw new Exception(
$"数据库连接配置错误！" +
$"数据库类型: {CP_ConnectionType.ToString()}；" +
$"连接字符串: {CP_ConnectionString}。");
}
try
{
m_iConn.Open();
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 初始化数据库（报错直接抛出异常，请主动捕获）
/// </summary>
public void CF_InitDataBase()
{
switch (CP_ConnectionType)
{
case EDataBaseType.SQLSERVER:
{
m_iDataBase = new SqlServerDataBase();
break;
}
case EDataBaseType.MYSQL:
{
m_iDataBase = new MySqlDataBase();
break;
}
case EDataBaseType.ORACLE:
{
m_iDataBase = new OracleDataBase();
break;
}
default:
{
m_isInitDataBase = false;
throw new Exception($"数据库类型错误或未设置！数据库类型: {CP_ConnectionType.ToString()}");
}
}
//异常
Exception exception = null;
try
{
m_iDataBase.ConnectionString = CP_ConnectionString;
m_iConn = m_iDataBase.CreateConnection();
m_iCmd = m_iDataBase.CreateCommand();
m_iCmd.Connection = m_iConn;
m_isInitDataBase = true;
}
catch (FileNotFoundException)
{
exception = new Exception($"缺少运行依赖程序: {m_iDataBase.RuntimeDepend}。");
}
catch (Exception ex)
{
exception = ex;
}
finally
{
//存在异常
if (exception != null)
{
m_iDataBase = null;
m_iConn = null;
m_iCmd = null;
m_isInitDataBase = false;
throw exception;
}
}
}