datasource 类

package org.leno.javabean;



import java.sql.SQLException;

import org.apache.commons.dbcp.BasicDataSource;



public class DataSourceFactory {



    /**

     * @param args

     */

    private static BasicDataSource ds;



    public static BasicDataSource getDataSource() {

        if (ds == null) {

            ds = new BasicDataSource();

            ds.setDriverClassName("com.microsoft.jdbc.sqlserver.SQLServerDriver");

            ds.setUrl("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=java28");

            ds.setUsername("sa");

            ds.setPassword("123");

            ds.setMaxActive(5);

        }

        return ds;



    }



    public static void main(String[] args) {

        // TODO Auto-generated method stub

        try {

            System.out.println(DataSourceFactory.getDataSource()

                    .getConnection());

        } catch (SQLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }



    }



}