DAC--使用DAC来导出数据库脚本

//==============================================

//功能介绍：使用DAC来导出数据库脚本

//注意事项：

//1.本程序涉及到的DLL有:

//  --Microsoft.SqlServer.ConnectionInfo.dll

//  --Microsoft.SqlServer.Management.Dac.dll

//  --Microsoft.SqlServer.Management.Sdk.Sfc.dll

// --Microsoft.SqlServer.Management.SmoMetadataProvider.dll

//2.以上DLL可以在C:\Windows\assembly\GAC_MSIL下找到，

//如果找不到,可以使用SQLSERVER 2012安装包安装以下MSI:

//  --SQLSysClrTypes.msi

//  --SharedManagementObjects.msi

//  --DACFramework.msi

//

//==============================================

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data.SqlClient;

using Microsoft.SqlServer.Management.Common;

using Microsoft.SqlServer.Management.Dac;

using Microsoft.SqlServer.Management.Smo;

using System.IO;

class DACExtracter

{

private List <string>GetDatabaseNames(SqlConnection conn)

{

SqlCommand comm = newSqlCommand( "SELECT name FROM sys.databases where database_id>4",conn);

List<string >dbNames = new List<string >();

try

{

conn.Open();

SqlDataReader reader= comm.ExecuteReader();

while(reader.Read())

{

dbNames.Add(reader["name" ].ToString());

}

return dbNames;

}

catch

{

Console.WriteLine("connect dbfailed");

throw(new Exception("connect db failed"));

}

finally

{

if(conn!=null )

{

conn.Close();

conn.Dispose();

}

}

}

public voidExtractDAC(string connectionString, string extractFolderPath)

{

try

{

SqlConnectionsqlConnection = new SqlConnection(connectionString);

ServerConnectionconn = new ServerConnection(sqlConnection);

Server destServer =new Server(conn);

List<string >dbNames = GetDatabaseNames(sqlConnection);

string version ="1.0.0.1" ;

foreach (stringdbName in dbNames)

{

ExtractDAC(destServer, dbName, version, extractFolderPath);

}

}

catch(Exception )

{

Console.WriteLine("End with error" );

}

}

private voidExtractDAC(Server destServer,string databaseName,string version,stringextractFolderPath)

{

try

{

Console.WriteLine(destServer.Information.Version);

DacExtractionUnitdacUnit = new DacExtractionUnit(destServer, databaseName, databaseName, newVersion (version));

DirectoryInfo dir =new DirectoryInfo(extractFolderPath);

if (!dir.Exists)

{

dir.Create();

}

string dacFilePath =dir.FullName + @"\" + databaseName + ".dacpac" ;

if (!File.Exists(dacFilePath))

{

File.Delete(dacFilePath);

}

dacUnit.Extract(dacFilePath);

Console.WriteLine("extract "+databaseName+"successfully");

}

catch(IOException )

{

Console.WriteLine("please check extract folder");

Console.WriteLine("extract " + databaseName + "failed" );

}

catch (Exception )

{

Console.WriteLine("extract " + databaseName + "failed" );

}

}

}

static void Main(string[] args)

{

String connectionString= "Data Source=88.88.88.88,18991;Initial Catalog=master;IntegratedSecurity=False;User ID=sa;Password=sa;";

DACExtracterdacExtracter = new DACExtracter();

dacExtracter.ExtractDAC(connectionString, @"E:\DBScript" );

Console.WriteLine("press any key to close");

Console.ReadLine();

}