You will find that as your SOA systems grow and change, you will need to have versioning polices for all contract artifacts: service interfaces, messages and data schemas, policies, etc.

你会发现，随着你SOA系统的成长和变更，你会需要针对所有契约制品的版本管理策略：服务接口、消息和数据的模式、策略等。

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For all subsequent servlet requests, you need to request a new service instance needs from the home interface.

对于所有后续Servlet请求，都需要从主接口请求一个新服务接口。

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Once you log in to a server, you need to use the same URL for all subsequent Web service calls to maintain the session information.

一旦登录到服务器，您就需要为所有后续的 Web 服务调用使用相同的 URL 以维持会话信息。

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