mybatis中的SQL怎么利用注解进行映射

 select * from studdents

int offset=0;//开始位置
int limit=25;//取出的数据条数
RowBounds rowBounds=new RowBounds(offset,limit);
List list=studentMapper.findAllStudent(rowBounds);

public interface ResultHandler
{
 void handleResult(ResultContext context);
}

Map map=new HashMap();
SqlSession sqlSession=MyBatisUtil.openSession();
sqlSession.select("com.mybatis3.mappers.StudentMapper.findAllStudents",new ResultHandler(){
 public void handlerResult(ResultContext context)
 {
  Student student=(Student)context.getResultObject();
  map.put(student.getStudId(),student.getName());
 }
})

public interface StudentMapper
{
 @Insert("insert into student (stud_id, name, email, addr_id, phone)values(#{studId},#{name},#{email},#{address.addrId},#{phone})")
 int insertStudent(Student student);
}
public interface StudentMapper
{
 @Insert("insert into student (name,email,addr_id,phone)values(#{name},#{email},#{address.addrId},#{phone})")
 @Options(useGeneratedKeys=true,keyProperty="studId")
 int insertStudent(Student student);
}
public interface StudentMapper
{
 @Insert("insert into student (name,email,addr_id,phone)values(#{name},#{email},#{address.addrId},#{phone})")
 @SelectKey(statement="select stud_id_seq.nextval from dual",keyProperty="studId",resultType=int.calss,before=true)
 int insertStudent(Student student);
}

@Update("update students set name=#{name},email=#{email}")
int updateStudent(Student student);

@Delete("delete form students where stud_id=#{studId}")
 int deleteStudent(int studId)

@Select("select name,email,phone from students where stud_id=#{studId}")
Student findStudentById(Integer studId);

@Select("select name,email,phone from students where stud_id=#{studId}")
@Results({
 @Result(id=true,column="stud_id",property="studId"),
 @Result(column="name",property="name"),
 @Result(column="email",property="email"),
 @Result(column="phone",property="phone")
})
Student findStudentById(Integer studId);

.......


@Select("select name,email,phone from students where stud_id=#{studId}")
@ResultMap("com.mybatis3.mappers.StudentMapper.StudentResult")
Student findStudentById(Integer studId);

 public class SqlProvider
 {
  public String findTutorById(int tutorId)
  {
   return "select tutorId,name,email from tutors where tutorId="+tutorId;
  }
 }

  @SelectProvider(type=SqlProvider.class,method="findTutorById")
  Tutor findTutorById(int tutorId); 

 public class SqlProvider
 {
  public String findTutorById(int tutorId)
  {
   return new SQL(){{
    SELECT("tutorid,name,email")
    FROM("tutors")
    WHERE("tutorid="+tutorId)
   }}.toString();
  }
 } 

 public class SqlProvider
 {
  public String findTutorById()
  {
   return new SQL(){{
    SELECT("tutorid,name,email")
    FROM("tutors")
    WHERE("tutorid=#{tutorId}")
   }}.toString();
  }
 }