事务配置

方案1. springboot mybatis 事务管理 在Application启动类上添加注解：@EnableTransactionManagement 在对应Class或方法上添加注解:@Transactional 当方法抛出runtimeException时事务回滚

方案2.手动回滚，在需要回滚时增加：TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();

分页配置

• pom

<!--分页-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.5</version>
        </dependency>

• *ServiceImpl.java

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
......
@Override public PageInfo<Record> getUserRecordPageList(String userId, Integer page, Integer rows)
            throws Exception {
        PageHelper.startPage(page, rows, true);
        List<Record> recordList = null;
        recordList = recordMapper.getRecordListByUserId(userId);
        PageInfo<Record> pageInfo = new PageInfo<Record>(recordList);
        return pageInfo;
    }
......