c3p0 问题，在线等！！！！加急~~~~~

public static void main( String[] args ) throws IOException {

        //加载spring的配置文件        

        ClassPathXmlApplicationContext app = new ClassPathXmlApplicationContext( "sys-mapper.xml" );

        //得到mybatis的SqlSessionFactory        

        SqlSessionFactory obj = app.getBean( "sqlSessionFactory", DefaultSqlSessionFactory.class );

        //创建mybatis的SqlSession        

        SqlSession ses = obj.openSession();

        //得到在mybatis的*Mapper.xml文件中配置好的Mapper节点        

        SstColumnMapper mapper = ses.getMapper( SstColumnMapper.class );

        SstColumn column = null;

        for ( int i = 0; i < 10; i++ ) {

            long start = System.currentTimeMillis();

            column = mapper.selectByPrimaryKey( 1111L );

            System.out.println( column.getColumnTitle() );

            System.out.println( System.currentTimeMillis() - start );

        }

    }

WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext( getServletContext() );

	SstColumnService sstColumnService = (SstColumnService)wac.getBean( "sstColumnService" );

	SstColumn column = sstColumnService.querySstColumnByKey( 1111L );

	column = sstColumnService.querySstColumnByKey( 1111L );

@Service

public class SstColumnService {

    @Resource

    private SstColumnMapper sstColumnMapper;

    /**

     * 根据主键查询

     * 参数:查询条件,主键值

     * 返回:对象

     */

    public SstColumn querySstColumnByKey( long columnId ) {

        return sstColumnMapper.selectByPrimaryKey( columnId );

    }

}