增加中文注释

spring-tx/src/main/java/org/springframework/dao/annotation/PersistenceExceptionTranslationAdvisor.java

@@ -31,6 +31,8 @@ import org.springframework.dao.support.PersistenceExceptionTranslator;
  * Spring AOP exception translation aspect for use at Repository or DAO layer level.
  * Translates native persistence exceptions into Spring's DataAccessException hierarchy,
  * based on a given PersistenceExceptionTranslator.
+xi * 用于存储库或DAO层级别的Spring AOP异常转换方面。
+ * 根据给定的PersistenceExceptionTranslator将本地持久性异常转换为Spring的DataAccessException层次结构。
  *
  * @author Rod Johnson
  * @author Juergen Hoeller