* init

src/main/java/com/tdba/cxb/ares/api/service/ProductService.java

@@ -5,6 +5,7 @@ import com.tdba.cxb.ares.api.repository.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
 import java.util.List;
@@ -86,9 +87,18 @@ public class ProductService {
      * @return
      */
     public ProductAttrValueVo attrValueDetail(ProductAttrValueReq param){
-        ProductAttrValueVo productAttrValueVo =  productAttrValueMapper.selectBySku(String.join(",", param.getValue_list()),
-                param.getProduct_id());
-        productAttrValueVo.setValue_list(List.of(productAttrValueVo.getSku().split(",")));
+        String sku = null;
+        if((param.getValue_list()) != null && !param.getValue_list().isEmpty()){
+           sku = String.join(",", param.getValue_list());
+        }
+        List valueList = null;
+        ProductAttrValueVo productAttrValueVo = productAttrValueMapper.selectBySku(sku, param.getProduct_id());
+        if(StringUtils.hasText(productAttrValueVo.getSku())) {
+            valueList = List.of(productAttrValueVo.getSku().split(","));
+        }else{
+            valueList = List.of();
+        }
+        productAttrValueVo.setValue_list(valueList);
         return productAttrValueVo;
     }
 }

src/main/resources/mapper/ProductAttrValueMapper.xml

@@ -26,6 +26,9 @@
             rrx_store_product_attr_value
         where
             product_id = #{productId}
-            and sku = #{sku}
+            <if test="sku != null and sku != ''">
+                and sku = #{sku}
+            </if>
+            limit 1
     </select>
 </mapper>