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service层返回值

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service层返回值

service层增删改返回值返回Int还是boolean类型好？如果是调用dao多表增删改如何处理返回结果？每调用一个dao就判断dao层返回值是否大于0、否则就抛出异常？


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取决于你的具体需求。如果不需要携带异常信息，返回boolean就好。通常情况下会定义好接口类，以统一的格式返回


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