当前位置： 首页 > news >正文

mybatisFlex各种链式sql写法

news 2025/9/14 21:57:55

1.关联LEFT JOIN

 public List<TocAgentUserRelationVO> selectTocAgentUserRelationByPhones(List<String> phones) {QueryWrapper queryWrapper = QueryWrapper.create().select(TOC_AGENT_USER_RELATION.ALL_COLUMNS).select(TOC_USER_INFO.PHONE,TOC_USER_INFO.NICK_NAME).select(TOC_GROUP_PATIENT_RELATIONS.DOCTOR_ID,TOC_GROUP_PATIENT_RELATIONS.CREATE_TIME.as("bindDoctorTime")).from(TOC_AGENT_USER_RELATION).leftJoin(TOC_USER_INFO).on(TOC_USER_INFO.ID.eq(TOC_AGENT_USER_RELATION.USER_ID)).leftJoin(TOC_GROUP_PATIENT_RELATIONS).on(TOC_GROUP_PATIENT_RELATIONS.PATIENT_ID.eq(TOC_AGENT_USER_RELATION.USER_ID)).where(TOC_USER_INFO.PHONE.in(phones)).orderBy(TOC_AGENT_USER_RELATION.CREATE_TIME.desc());return tocAgentUserRelationMapper.selectListByQueryAs(queryWrapper,TocAgentUserRelationVO.class);}

2.FIND_IN_SET+LEFT JOIN+AND (OR)写法

 public <R> Page<R> dietitianList(DietitianListRequest request, Class<R> asType) {QueryWrapper queryWrapper = QueryWrapper.create().select(TOC_USER_INFO.ID,TOC_USER_INFO.NICK_NAME,TOC_USER_INFO.IMG_URL,TOC_USER_INFO.TAG,TOC_USER_INFO.GOOD_AT,TOC_USER_INFO.GOOD_AT_REMARK).select(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER)//计算好评率=好评数目/总订单数目.select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.divide(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate")).from(TOC_USER_INFO).leftJoin(TOC_NUTRITIONIST_ORDER_NUM).on(TOC_NUTRITIONIST_ORDER_NUM.USER_ID.eq(TOC_USER_INFO.ID));queryWrapper.where(TOC_USER_INFO.PLATFORM.eq(3));queryWrapper.where(TOC_USER_INFO.USER_TYPE.eq(UserTypeEnum.TOC_DOCTOR));if(request.getIllnessId() != null){queryWrapper.and("FIND_IN_SET('" + request.getIllnessId() + "',good_at)");}if(request.getIllnessIds() != null && !request.getIllnessIds().isEmpty()){queryWrapper.and(q -> { for (Long illnessId : request.getIllnessIds()) { q.or("FIND_IN_SET('" + illnessId + "',good_at)"); } });}queryWrapper.orderBy("goodRate", false);PageDomain pageDomain = TableSupport.buildPageRequest();return tocUserInfoMapper.paginateAs(pageDomain.getPageNum(), pageDomain.getPageSize(), queryWrapper, asType);}

3.修改部分字段写法

   public void updateReservePhone(NutritionistRequest request) {UpdateChain.of(TocUserInfo.class).set(TocUserInfo::getReservePhone, request.getReservePhone()).where(TocUserInfo::getId).eq(request.getUserId()).update();}

4.sum+case_().when().then().else_().end()写法

    public StatisticsReturnVo selectRegistrationCodeIncome(StatisticsRequest request) {QueryWrapper wrapper = QueryWrapper.create().select(sum(case_().when(SYS_WX_PAY_ORDER.USER_FROM.eq(4)).then(SYS_WX_PAY_ORDER.PAY_MONEY).else_(0.00).end()).as("num1")).select(sum(case_().when(SYS_WX_PAY_ORDER.USER_FROM.eq(5)).then(SYS_WX_PAY_ORDER.PAY_MONEY).else_(0.00).end()).as("num2")).select(sum(case_().when(SYS_WX_PAY_ORDER.USER_FROM.eq(2)).then(SYS_WX_PAY_ORDER.PAY_MONEY).else_(0.00).end()).as("num3")).from(SYS_WX_PAY_ORDER).where(SYS_WX_PAY_ORDER.USER_FROM.in(2,4,5));wrapper.eq(SysWxPayOrder::getAgentUserId, request.getAgentId());wrapper.between(SysWxPayOrder::getCreateTime, request.getBeginTime(), request.getEndTime());wrapper.eq(SysWxPayOrder::getPayState,1);return sysWxPayOrderMapper.selectOneByQueryAs(wrapper, StatisticsReturnVo.class);}

4.count+case_().when().then().else_().end()写法

public List<TocReserveTimeVo> getReserveTimeSlotRule(TocReserveQuery query) {QueryWrapper queryWrapper = QueryWrapper.create().select(TOC_RESERVE_TIME_SLOT_RULE.ID.as("slotId"),TOC_RESERVE_TIME_SLOT_RULE.TIME_SLOT,TOC_RESERVE_TIME_SLOT_RULE.MAX_CAPACITY.as("totalAvailable")).select(count(case_().when(TOC_RESERVE_DETAIL.STATUS.eq(1)).then(TOC_RESERVE_DETAIL.ID).else_(null).end()).as("reservedCount")).select(TOC_RESERVE_TIME_SLOT_RULE.MAX_CAPACITY.subtract(count(TOC_RESERVE_DETAIL.ID)) .as("remainingSlots")).from(TOC_RESERVE_TIME_SLOT_RULE).leftJoin(TOC_RESERVE_DETAIL).on(TOC_RESERVE_DETAIL.SLOT_ID.eq(TOC_RESERVE_TIME_SLOT_RULE.ID)).where(TOC_RESERVE_TIME_SLOT_RULE.DATE_RULE_ID.eq(query.getId())).groupBy(TOC_RESERVE_TIME_SLOT_RULE.ID, TOC_RESERVE_TIME_SLOT_RULE.TIME_SLOT, TOC_RESERVE_TIME_SLOT_RULE.MAX_CAPACITY);return tocReserveTimeSlotRuleMapper.selectListByQueryAs(queryWrapper,TocReserveTimeVo.class);}

5.字段加减乘除写法

 public <R> Page<R> dietitianList(DietitianListRequest request, Class<R> asType) {QueryWrapper queryWrapper = QueryWrapper.create().select(TOC_USER_INFO.ID,TOC_USER_INFO.NICK_NAME,TOC_USER_INFO.IMG_URL,TOC_USER_INFO.TAG,TOC_USER_INFO.GOOD_AT,TOC_USER_INFO.GOOD_AT_REMARK).select(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER)//计算好评率=好评数目/总订单数目.select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.divide(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate1")).select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.multiply(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate2")).select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.subtract(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate3")).select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.add(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate4")).from(TOC_USER_INFO).leftJoin(TOC_NUTRITIONIST_ORDER_NUM).on(TOC_NUTRITIONIST_ORDER_NUM.USER_ID.eq(TOC_USER_INFO.ID));queryWrapper.where(TOC_USER_INFO.PLATFORM.eq(3));queryWrapper.where(TOC_USER_INFO.USER_TYPE.eq(UserTypeEnum.TOC_DOCTOR));PageDomain pageDomain = TableSupport.buildPageRequest();return tocUserInfoMapper.paginateAs(pageDomain.getPageNum(), pageDomain.getPageSize(), queryWrapper, asType);}

6. AND +(字段 or 字段写法)

  public <R> Page<R> dietitianList(DietitianListRequest request, Class<R> asType) {QueryWrapper queryWrapper = QueryWrapper.create().select(TOC_USER_INFO.ID,TOC_USER_INFO.NICK_NAME,TOC_USER_INFO.IMG_URL,TOC_USER_INFO.TAG,TOC_USER_INFO.GOOD_AT,TOC_USER_INFO.GOOD_AT_REMARK).select(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER)//计算好评率=好评数目/总订单数目.select(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.divide(TOC_NUTRITIONIST_ORDER_NUM.CONSULT_ORDER_NUMBER).as("goodRate")).from(TOC_USER_INFO).leftJoin(TOC_NUTRITIONIST_ORDER_NUM).on(TOC_NUTRITIONIST_ORDER_NUM.USER_ID.eq(TOC_USER_INFO.ID));queryWrapper.and(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.eq(1).or(TOC_NUTRITIONIST_ORDER_NUM.GOOD_REPUTATION_NUMBER.gt(1)));PageDomain pageDomain = TableSupport.buildPageRequest();return tocUserInfoMapper.paginateAs(pageDomain.getPageNum(), pageDomain.getPageSize(), queryWrapper, asType);}

7.批量修改写法

  public int batchUntieGroup(List<Long> relationIds) {//每次执行1000条Db.executeBatch(relationIds, 1000, TocGroupPatientRelationsMapper.class, (mapper, relationId) -> {//下面是具体的执行sql写法UpdateChain.of(mapper).set(TocGroupPatientRelations::getGroupId, null).set(TocGroupPatientRelations::getGroupName, "").where(TocGroupPatientRelations::getRelationId).eq(relationId).update();});return Constants.SUCCESS_CODE;}

备注：其他的写法都比较简单，如果有不会的写法，欢迎留言，我每天会看一遍，我会抽取部分复杂的写法补充进来


文章转载自：

http://3bGF4FWr.fqssx.cn
http://sZq82oLp.fqssx.cn
http://47IdZ8qp.fqssx.cn
http://csNYzaHO.fqssx.cn
http://2KoXeNnt.fqssx.cn
http://ZZCst8ae.fqssx.cn
http://E3ECF4HP.fqssx.cn
http://7WyoziQ4.fqssx.cn
http://Zjc1KaZf.fqssx.cn
http://aNBun7bf.fqssx.cn
http://1YYAHm0h.fqssx.cn
http://PRKwn1ob.fqssx.cn
http://hLX4N4Iy.fqssx.cn
http://iJpFXdxA.fqssx.cn
http://Lmetnq5V.fqssx.cn
http://Xlb9zDWE.fqssx.cn
http://EUH84z92.fqssx.cn
http://GIxxYZnI.fqssx.cn
http://53EtN2xh.fqssx.cn
http://awJ3JnHp.fqssx.cn
http://BsFJjMLO.fqssx.cn
http://ZmztfYCS.fqssx.cn
http://NLeZP0KO.fqssx.cn
http://8xF13nDm.fqssx.cn
http://MTlcnloi.fqssx.cn
http://YdPWOL8k.fqssx.cn
http://1grIqi5X.fqssx.cn
http://53vprrxA.fqssx.cn
http://ffsTbsx0.fqssx.cn
http://GLhkNZ6K.fqssx.cn
http://www.dtcms.com/a/141676.html

相关文章：

  • 深度比较Gemini 2.5两款最新模型差异
  • Python基础知识语法归纳总结（数据类型-1）
  • python_level1.2
  • Android模块编译无法找到依赖（shared_libs）
  • 【Vue3代理机制详解：从原理到实践】
  • LeadeRobot具身智能应用标杆：无人机X柔韧具身智能，空中精准作业游刃有余
  • 6. 实战（二）：用Spring AI+OpenAI构建企业级智能客服
  • STM32学习2
  • 自学新标日第十九课复习版本
  • 驱动移植【简略版】
  • Vue3中provide和inject的用法示例
  • 第 4 期：DDPM中的损失函数——为什么只预测噪声？
  • 守护进程及gdb调试（新手简略版）
  • 数控铣床自动上下料机械手控制装置设计
  • python豆包语音合成并播放
  • keil5软件配置以及使用技巧
  • Aladdin显卡多任务运行教程
  • 大模型应用_AutoGPT
  • 软件测试之接口测试详解
  • Linux CentOS 更改MySQL数据库目录位置
  • 生态篇｜多总线融合与网关设计
  • 函数与数组---------C语言经典题目（1）
  • Vue 3 计算属性与侦听器深度解析：优雅处理响应式数据
  • ​​Nginx快速入门-3：工作流程和模块化
  • day1-小白学习JAVA（mac版）---（jdk安装和环境变量配置）
  • 【Reading Notes】（8.2）Favorite Articles from 2025 February
  • ModbusTCP 转 Profinet 主站网关
  • 从零实现Git安装、使用
  • FairMOT与MCFairMOT算法对比
  • 【web服务_负载均衡Nginx】二、Nginx 核心技术之负载均衡与反向代理