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这里将
productId从Integer改为String会改变 Lombok 生成的 getter/setter 签名,属于对外 API 的破坏性变更(下游若调用getProductId()/setProductId(Integer)将无法编译)。如果这是必要的类型修正,建议同时提供一个过渡方案(例如新增/保留一个标记为@Deprecated的整数访问方式,如getProductIdAsInteger()/setProductId(Integer),内部与 String 字段互转),以降低升级成本。