如果您扩展第三方应用程序或框架，并且希望在代码中使用 Spring Bean，但是该 API 没有向扩展类传递上下文，可能就会发生这种情况。
This might happen if you’re extending a third party application or framework, and you want to use Spring beans in your code, but the API doesn’t pass the context to the extending classes.
一方面你希望1.0是一个尽善尽美的版本，但是你又意识到没有任何软件可以尽善尽美，于是你又不得不使用其他的标准来帮助你做出决定。
On one hand you want 1.0 to be perfect and done, but on the other hand you realize no software is every finished nor perfect, and you use other criteria to make the decision.
假设您有一个社交书签应用，而您希望允许第三方开发人员使用SOAP向应用添加书签和从应用查询书签。
Suppose you have a social bookmarking application, and you want to allow third-party developers to add and retrieve bookmarks from the application using SOAP.
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