Note that if we do want to recover from an unchecked data access exception, we can still.
注意如果我们想从一个未检查的数据访问异常恢复,我们同样可以。
Spring's data access facilities automatically translate data-access exceptions into this exception class hierarchy.
Spring的数据访问功能自动将数据访问异常转换为此异常类层次结构。
Spring defines a coherent data access exception class hierarchy (Figure 12) that you can use as a basis for your service- and DAO-layer exceptions.
Spring 定义了一致的数据访问异常类层次结构(请参见图 12),您可以将其用作服务和 DAO 层异常的基础。
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