nft标签为空时不加入缓存

joying-common/src/main/java/com/fzm/common/service/impl/LabelServiceImpl.java

 package com.fzm.common.service.impl;
 
+import cn.hutool.core.collection.CollectionUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.fzm.common.entity.Category;
@@ -25,10 +26,11 @@ public class LabelServiceImpl extends ServiceImpl<LabelMapper, Label> implements
     private LabelMapper labelMapper;
 
     @Override
-    @Cacheable(value = "label:list", key = "#categoryId")
+    @Cacheable(value = "label:list", key = "#categoryId", unless = "#result == null")
     public List<Label> listAll(Integer categoryId) {
         QueryWrapper<Label> queryWrapper = new QueryWrapper<>();
         queryWrapper.eq("category_id", categoryId);
-        return labelMapper.selectList(queryWrapper);
+        List<Label> labels = labelMapper.selectList(queryWrapper);
+        return CollectionUtil.isEmpty(labels) ? null : labels;
     }
 }

joying-common/src/main/java/com/fzm/common/service/impl/NftServiceImpl.java

@@ -287,7 +287,7 @@ public class NftServiceImpl extends ServiceImpl<NftMapper, Nft> implements NftSe
             throw GlobalException.newException(ResultCode.DATA_ERROR, "没找到此类目");
         }
         int code = RandomUtil.randomInt(1000, 10000);
-        return String.format("INMVO-%s-%s%s", category.getEnglishName(), System.currentTimeMillis(), code);
+        return String.format("YIMU-%s-%s%s", category.getEnglishName(), System.currentTimeMillis(), code);
     }
 
     @Override