Because we are dealing with simple accessor methods for beans, we have one for the setter containing a single input message, and one for the getter containing a single output message (see listing 4).

因为我们是为bean处理简单的访问方法，所以包含一个输入消息的setter和包含一个输出消息的getter都有一个。如清单4所示。

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The WSDL portType operation accepts a single input message and a single output message.

WSDL portType 操作接受单一的输入消息及单一的输出消息。

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A Local map contains a single input field and a single output field.

Local map包含单个输入字段和单个输出字段。

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