apache 的DBCP实现连接池

import java.sql.Connection;
import java.sql.SQLException;
import org.apache.commons.dbcp.BasicDataSource;
import org.apache.commons.dbcp.ConnectionFactory;
import org.apache.commons.dbcp.DataSourceConnectionFactory;

public class testDBPool {
    private static BasicDataSource bds = null;
    private static ConnectionFactory cf = null;
    public testDBPool(){
    }
    static{
        bds = new BasicDataSource();
        bds.setDriverClassName("com.mysql.jdbc.Driver");
        bds.setUrl("jdbc:mysql://localhost/wolf?useUnicode=true&characterEncoding=utf-8");
        bds.setInitialSize(1000);
        bds.setMaxActive(40);
        bds.setMaxWait(1000*60);
        bds.setUsername("root");
        bds.setPassword("sinianlang");
        cf = new DataSourceConnectionFactory(bds);
    }
    public static Connection getConnection() throws SQLException{
        return cf.createConnection();
    }
    public static void destroy() throws SQLException{
        cf = null;
        bds.close();
        bds = null;
    }
}