org.springframework.dao.DuplicateKeyException Exception thrown when an attempt to insert or update data results in violation of an primary key or unique constraint. Note that this is not necessarily a purely relational concept; unique primary keys are required by most database types. Author: Thomas Risberg
代码片段
import org.springframework.dao.DuplicateKeyException; try{ someMapper.insert(someBean); //TODO something }catch(DuplicateKeyException e){ //TODO something else }
本文详细介绍了在使用Spring框架时遇到的DuplicateKeyException异常及其处理方式。该异常通常发生在尝试插入或更新数据时违反了数据库的主键或唯一约束。文章通过示例代码展示了如何捕获并处理此类异常。
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