摘要：
Two Levels of Abstraction 抽象的2个级别 Now that we have a powerful, database-agnostic approach to exception handling, let's look at implementing an abstraction framework that will make JDBC much easier t... 阅读全文
摘要：
Converting JDBC Exceptions to Generic Exceptions 转换jdbc异常到通用异常 In the class diagram above, all the classes above the horizontal line are generic. These are the exceptions that calling code will work... 阅读全文