This model assumes that there is only limited trust of the ESB by a provider service, which requires credentials which allow the provider to authenticate the initiator of the request directly.
此模型假定提供者服务只获得了ESB的有限信任，需要提供凭据，以允许提供者直接对请求发出者进行身份验证。
Since the client has the complete data model hierarchy, it is possible for the client to send subclasses in the hierarchy in a request to the Web service.
由于客户端拥有完全的数据模型层次，客户端就有可能在Web服务请求中发送层次中的子类。
In our model, the servlet process does some work on the incoming request, queries a database, and then USES the information picked from the database to invoke a Web service.
在我们的模型中，servlet流程对到来的请求执行一些处理，对数据库进行查询，然后使用从数据库获取的信息调用Web服务。
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