十二、使用注解开发-Mybatis快速入门小白编

StudentMapper.java 接口

public interface StudentMapper {
    //使用注解
    @Select("select * from student")
    List<Student> selectAnnotation();
}

TestMybatis.java

   //使用注解的单表查询
    public static void queryAnnotation() throws IOException {
        Reader resourceAsReader = Resources.getResourceAsReader("conf.xml");
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsReader);
        SqlSession sqlSession = sqlSessionFactory.openSession();
        StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
        List<Student> students = mapper.selectAnnotation();
        System.out.println(students);
    }

输出结果： 注意重写一下toString方法

[1bb11, 2ss22]