DaoUtil - jkana1223 @ ウィキ

import java.sql.*;
import javax.sql.*;
import javax.naming.*;
import javax.transaction.*;

public class DaoUtil{

private static final String DS_NAME = "";
private static Object lookup(final String name) throws NamingException{

InitialContext ctx = new InitialContext();
Object result = ctx.lookup(name);
return result;
}

public static UserTransaction getUserTransaction() throws NamimgException{
UserTransaction utx = (UserTransaction) lookup (UTX_NAME);
return utx;
}

public static Connection getConnection() throws NamimgException, SQLException{
DataSource ds = (DataSource) lookup(DS_NAME);
Connection conn = ds.getConnection();
return conn;
}

public static void closeConnection(final Connection conn) throws SQLException{
if (conn != null){

conn.close();

}
}
}