MYBAITS3–工具类的创建

public class MybatisUtils{
    private SqlsessionFactory sqlsessionFactory;
    public Sqlsession getSqlsession(){
    try{
      InputStream inputStream = Resources.getResourceAsStream(“mybaits.xml”);
     if(sqlSessionFactory==null){
              sqlSessionFactory = new   SqlSessionFactoryBuilder().build(inputStream);
        }   
             return sqlSessionFactory.openSession();
    }catch(Exceprion e){
     e.printStackTrace();
    }
        return null;
  }
}