ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwCategoryServiceImpl.java
@@ -66,8 +66,8 @@ */ @Cacheable(cacheNames = FlowConstant.FLOW_CATEGORY_NAME, key = "#categoryId") @Override public String selectCategoryNameById(String categoryId) { if (StringUtils.isBlank(categoryId)) { public String selectCategoryNameById(Long categoryId) { if (ObjectUtil.isNull(categoryId)) { return null; } FlowCategory category = baseMapper.selectOne(new LambdaQueryWrapper<FlowCategory>()