/**
     * 可序列化
     */
    private static final int FLAG_SERIALIZABLE = 1;  
//獲取當(dāng)前登錄人權(quán)限
 Integer secretLevel = getUserSecretLevel();
        if(secretLevel!=null){
            SFunction func = null;
            final MethodHandles.Lookup lookup = MethodHandles.lookup();
            //po的返回Integer的一個方法
            MethodType methodType = MethodType.methodType(Integer.class, entityClass);
            final CallSite site;
            try {
                //方法名叫做:getSecretLevel  轉(zhuǎn)換為 SFunction function interface對象
                site = LambdaMetafactory.altMetafactory(lookup,
                        "invoke",
                        MethodType.methodType(SFunction.class),
                        methodType,
                        lookup.findVirtual(entityClass, "getSecretLevel", MethodType.methodType(Integer.class)),
                        methodType,FLAG_SERIALIZABLE);
                func = (SFunction) site.getTarget().invokeExact();
                //數(shù)據(jù)小于這個級別的都查出來
                queryWrapper.le(func,secretLevel);
            } catch (Throwable e) {
                log.error("獲取getSecretLevel方法錯誤",e);
            }
        }

LambdaQueryWrapper<SomeClass> objectLambdaQueryWrapper = Wrappers.lambdaQuery();
? ? ? ? objectLambdaQueryWrapper.eq(searchDto.getTemplateCode() != null, ContractTemplate::getTemplateCode, searchDto.getTemplateCode());

? ? ? ? IPage<SomeClass> page = page(MybatisPlusUtil.setPageParams(pageNo, pageSize), objectLambdaQueryWrapper);
? ? ? return page

QueryWrapper<SomeClass> queryWrapper = Wrappers.query();
? ? ? ? queryWrapper.eq(searchDto.getTemplateCode() != null, TemplateConst.COL_TEMPLATE_CODE, searchDto.getTemplateCode())
? ? ? ? ? ? ? ? .ge(searchDto.getStartDate() != null, TemplateConst.COL_CREATE_TIME, searchDto.getStartDate())
? ? ? ? ? ? ? ? .lt(searchDto.getEndDate() != null, TemplateConst.COL_CREATE_TIME, DateUtils.addDays(searchDto.getEndDate(), 1))
? ? ? ? ? ? ? ? .eq(searchDto.getContractCategoryId() != null, TemplateConst.COL_CATEGORY_ID, searchDto.getContractCategoryId())
? ? ? ? ? ? ? ? .and(i -> i.like(TemplateConst.COL_TEMPLATE_NAME, searchDto.getKeyword()).or().like(TemplateConst.COL_DESCRIPTION, searchDto.getKeyword()))
? ? ? ? ? ? ? ? .eq(searchDto.getIs_enabled() != null, TemplateConst.COL_IS_ENABLED, searchDto.getIs_enabled())
? ? ? ? ? ? ? ? // 未標志刪除的數(shù)據(jù)
? ? ? ? ? ? ? ? .eq(CommonConst.DBColName.DEL_FLAG, CommonConst.IsEnabled.ENABLED.getCode())
? ? ? ? ? ? ? ? .orderByDesc(TemplateConst.COL_CREATE_TIME)
? ? ? ? ? ? ? ? ;
? ? ? ? IPage<ContractTemplate> page = page(MybatisPlusUtil.setPageParams(pageNo, pageSize), queryWrapper);
? ? ? ? return MybatisPlusUtil.parsePageDTO(page);