However, it has a number of weaknesses: there is no single sign-on point for the user, the coupling between the provider and subscriber isn't very tight, and business logic is not reused.
然而，它有很多的缺点：对用户没有提供统一认证，提供者与订阅者耦合不紧，业务逻辑没有重用。
However, it has a number of weaknesses: there is no single sign-on point for the user, the coupling between the provider and subscriber isn't very tight, and business logic is not reused.
然而，它有很多的缺点：对用户没有提供统一认证，提供者与订阅者耦合不紧，业务逻辑没有重用。
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