Worked on the YunaiV/ruoyi-vue-pro repository to enhance backend data reliability by addressing JSON field parsing issues in product data retrieval. Focused on improving how Java and MyBatis handled JSON fields, the developer implemented explicit JacksonTypeHandler wiring for fields such as sliderPicUrls and properties in ProductSpuMapper and ProductSkuMapper. Additionally, a dedicated type handler was introduced for the delivery_types field to ensure consistent parsing alongside existing JSON fields. These targeted changes reduced runtime errors and improved data mapping accuracy, resulting in more reliable product data representation across both the user interface and downstream analytics processes.