MybatisPlus實現分頁查詢和動態SQL查詢的示例代碼

   /**
     * @param userId        專員的id
     * @param planState     計劃狀態
     * @param planStartTime 計劃開始時間
     * @param emtCode       公司名稱-分身id
     * @return java.util.List<com.hc360.crm.entity.po.PlanCustomer>
     * @Author zhaoxiaodong
     * @Description 高級查詢-根據計劃狀態、計劃的時間、公司名稱查詢
     * @Date 9:04 2021/9/29
     */
    @PostMapping("/selectPlanByStateTimeCompany")
    public Page<CrmCustomerPlan> selectPlanByStateTimeCompany(@RequestParam(required = false,defaultValue = "1")int limit, @RequestParam(required = false,defaultValue = "1")int page, @RequestParam(required = true) Long userId,@RequestParam(required = false,defaultValue = "0") int planState,@RequestParam(required = false) String planStartTime,@RequestParam(required = false) Long emtCode) {
        //獲取該專員下所有狀態為未開始的計劃
        List<CrmCustomerPlan> myPlanList = crmCustomerPlanService.selectNoStartPlan(userId);
        if (StringUtil.isNotEmpty(planStartTime)){
            //判斷計劃的開始時間和當前時間
            DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            LocalDateTime planTime = LocalDateTime.parse(planStartTime, dtf);
            //存放已逾期的計劃
            List<CrmCustomerPlan> overDuePlan = new ArrayList<>();
            for (CrmCustomerPlan customerPlan : myPlanList) {
                if (LocalDateTime.now().isAfter(planTime)) {
                    //當前時間在計劃時間之後，說明過瞭計劃時間，這時候我們要將它的狀態改為已逾期
                    customerPlan.setPlanState(PlanStateEnum.OVERDUE.getCode());
                    overDuePlan.add(customerPlan);
                }
            }
            if (overDuePlan.size() > 0) {
                //遍歷完之後，我們就可以對數據進行更改瞭
                crmCustomerPlanService.updateBatchById(overDuePlan);
            }
        }
        //接下來，就是對數據進行查詢
        return crmCustomerPlanService.selectPlanByStateTimeCompany(limit,page,userId, planState, planStartTime, emtCode);
    }

    /**
    * @param userId
    * @return java.util.List<com.hc360.crm.entity.po.PlanCustomer>
    * @Author zhaoxiaodong
    * @Description 高級查詢-根據計劃狀態、時間、公司名稱查詢
    * @Date 9:06 2021/9/29
    */
   @Override
   public Page<CrmCustomerPlan> selectPlanByStateTimeCompany(int limit,int page,Long userId, int planState, String planStartTime, Long emtCode) {
       Page<CrmCustomerPlan> pagelimit= new Page(page,limit);
       QueryWrapper<CrmCustomerPlan> crmCustomerPlanQueryWrapper = new QueryWrapper<>();
       crmCustomerPlanQueryWrapper.eq("create_user_id", userId);
       if (planState!=0){
           crmCustomerPlanQueryWrapper.eq("plan_state", planState);
       }
       if (StringUtil.isNotEmpty(planStartTime)){
           crmCustomerPlanQueryWrapper.eq("plan_start_time", planStartTime);
       }
       if (StringUtil.isNotEmpty(String.valueOf(emtCode))){
           crmCustomerPlanQueryWrapper.eq("emt_code", emtCode);
       }
       return crmCustomerPlanMapper.selectPage(pagelimit,crmCustomerPlanQueryWrapper);
   }

  /**
   * 新的分頁插件
   */
  @Bean
  public MybatisPlusInterceptor mybatisPlusInterceptor() {
      MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
      mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
      return mybatisPlusInterceptor;
  }