1.mybatis 分页的几种方式
//https://blog.csdn.net/u012045045/article/details/88616259
//查询全部数据
List<Student> students = studentMapper.queryStudentsByArray();
//从第几条数据开始
int firstIndex = (currPage - 1) * pageSize;
//到第几条数据结束
int lastIndex = currPage * pageSize;
1.students.subList(firstIndex, lastIndex); //直接在list中截取
2.select * from student limit #{currIndex} , #{pageSize} //SQL分页
2.mybatis 整合Spring 实现主从库读写分离
https://zhuanlan.zhihu.com/p/64565964