Web Services Architecture and Its Specifications [Electronic resources] : Essentials for Understanding WS-* نسخه متنی

Addressing: Processing Semantics

WS-Addressing uses the Action SOAP Header element to uniquely identify the processing semantics implied by each message. Each Web services message must include an Action element in its header. A reference list of Action element values defined in the current Web services specifications is provided in Appendix E, "WS-Addressing Action URI Reference."

In the following example, we show the use of an Action element in the SOAP message header:

WS-Addressing Action
(01) <env:Envelope>
(02)  <env:Header>
(03)    ...
(04)  <wsa:Action>http://ex.mspress.microsoft.com/PO</wsa:Action>
(05)  </env:Header>
(06)  <env:Body>...</env:Body>
(07) </env:Envelope>

Line 04 This Action element specifies that the message is to be processed as a Purchase Order request using the semantics for this URI as specified by Microsoft Press.