In this tip, author and developer Nicholas Chase shows you how to use the SOAP with Attachments API for Java (SAAJ) to simplify the process of creating and sending SOAP messages.
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The foundation of Web services lies in the sending and receiving of
messages in a standard format so that all systems can understand them.
Typically, that format is SOAP. A SOAP
message can be generated and sent manually, but the SOAP with Attachments
API for Java (SAAJ) -- an offshoot of the Java API for XML Messaging (JAXM) --
automates many of the required steps, such as creating
connections or creating and sending the actual messages. This tip
chronicles the creation and sending of a synchronous SOAP message.
The process involves five steps:
- Creating a SOAP connection
- Creating a SOAP message
- Populating the message
- Sending the message
- Retrieving the reply
SAAJ is available as part of the Java Web Services Developer Pack 1.2 (see Resources). This package also includes a copy of the Tomcat Web server (so you can host your own service) and sample applications.
