復制代碼 代碼如下:

<appsettings>
<add key="rpsconnection" value="mssql"/>
<add key="damconnection" value="sqlite" />
</appsettings>
<connectionstrings>
<add connectionString="" providerName="System.Data.SQLite.SQLiteConnection;System.Data.SQLite"/>
<add connectionString="" providerName="System.Data.SqlClient.SqlConnection;System.Data" />
</connectionstrings>

復制代碼 代碼如下:

/// <summary>
/// 數據訪問層
/// 透過Dam訪問數據庫
/// </summary>
public class DALTest
{
/// <summary>
/// 最簡單的插入操作
/// Execute會幫你自動創建所對應數據庫的連接、執行操作、釋放Command、關閉連接、釋放鏈接等
/// </summary>
/// <returns>執行后受影響行數</returns>
public int Insert()
{
return Execute.SExecuteNonQuery("sp_name", null);
//return Execute.SExecuteNonQuery("insert into tablename (..) values (..)", CommandType.Text , null);
}
/// <summary>
/// 帶參數的插入操作
/// Execute會幫你自動創建所對應數據庫的連接
/// 并幫你把參數類型轉換為所對應數據庫類型的參數進行數據庫操作.
/// </summary>
/// <returns></returns>
public int Insert_Paras()
{
DbParameter[] paras =
{
new MySqlParameter("p1","p1value")
,new SqlParameter("p2","p2value")
};
return Execute.SExecuteNonQuery("sp_name", paras);
}
/// <summary>
/// 帶參數的插入操作，并能得到參數返回值
/// Execute會幫你自動創建所對應數據庫的連接
/// 并幫你把參數類型轉換為所對應數據庫類型的參數進行數據庫操作.
/// 執行完成您可得到返回值
/// </summary>
/// <returns></returns>
public int Insert_Paras(ref string outputValue)
{
int resultInt = 0;
DbParameter[] paras =
{
new MySqlParameter("p1","p1value")
,new SqlParameter("p2_output","")
{
Direction = ParameterDirection.Output
}
};
resultInt = Execute.SExecuteNonQuery("sp_name", paras);
if (paras[1].Value != null) outputValue = paras[1].Value.ToString();
return resultInt;
}
/// <summary>
/// 帶參數的插入操作，并能得到參數返回值，此參數從BLL層傳來
///同上...
/// </summary>
/// <returns></returns>
public int Insert_Paras(DbParameter[] paras)
{
return Execute.SExecuteNonQuery("sp_name", paras);
//這樣可以在BLL層通過 paras[1]來獲取返回參數了
}
/// <summary>
/// 執行同連接多操作的事務處理
/// 這里使用1個帶參數的存儲過程和一個不帶參數的sql語句操作
/// 使用是靜態調用方法
/// </summary>
/// <returns></returns>
public bool Insert_Transaction()
{
bool resultBool = false;
DbParameter[] paras =
{
new MySqlParameter("p1","p1value")
,new SqlParameter("p2","p2value")
};
DbConnection connection = null;
DbTransaction transaction = null;
try
{
connection = Factory.CreateConnection();
connection.Open();
transaction = connection.BeginTransaction();
int resultInt1 = Execute.SExecuteNonQuery(connection, transaction, "sp_name1", paras);
int resultInt2 = Execute.SExecuteNonQuery(connection, transaction, "insert into tablename (...) values (...)", null);
if (resultInt1 > 0 && resultInt2 > 0)
{
transaction.Commit();
resultBool = true;
}
else
{
transaction.Rollback();
}
}
catch (Exception)
{
if (transaction != null)
{
transaction.Rollback();
}
}
finally
{
if (transaction != null)
{
transaction.Dispose();
}
if (connection != null)
{
//這里需要手動關閉連接?。?
connection.Close();
connection.Dispose();
}
}
return resultBool;
}
/// <summary>
/// 執行同連接多任務操作（不使用事務）
/// 這里我們使用對象方法。這樣執行多任務操作可能會穩定點和效率高點
/// </summary>
/// <returns></returns>
public void Insert_much()
{
Execute exec = Execute.NewExecute;
DbConnection connection = null;
try
{
connection = Factory.CreateConnection();
exec.ExecuteNonQuery(connection, null, "sp_name", null);
exec.ExecuteNonQuery(connection, null, "sp_name2", null);
}
finally
{
if (connection != null)
{
//因為調用了 帶事務的那個方法（但是我們設置事務為NULL，事務無效）
//所以連接不會自動關閉釋放，我們需要手動釋放
connection.Close();
connection.Dispose();
}
}
}
}