关于工具类

public class MybatisUtils {
   private static SqlSessionFactory sqlSessionFactory = null;

   static {
       try {
           Reader reader = Resources.getResourceAsReader("mybatis-config.xml");
           if(sqlSessionFactory==null)
               sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
       } catch (IOException e) {
           e.printStackTrace();
       }
   }

   public static SqlSession getSqlSession(){
       return sqlSessionFactory.openSession();
   }

   public static void CloseSqlSession(SqlSession sqlSession){
       if(sqlSession!=null)
           sqlSession.close();
   }


}

@Test
public  void test2(){
   List<Student> list = null;
   SqlSession sqlSession = null;
   try {
       sqlSession =  MybatisUtils.getSqlSession();
       Map map = new HashMap();
       map.put("age",30);
       map.put("sex","男");
       list = sqlSession.selectList("student.selectALL",map);
   } catch (Exception e) {
       e.printStackTrace();
   }finally {
       MybatisUtils.CloseSqlSession(sqlSession);
   }
   for(Student s :list){
       System.out.println(s);
   }

}

一直报错：

### Error querying database.  Cause: org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map java.util.Map