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SOAPing Up Web Services: Page 4 of 11

FYI
There are excellent tutorials on generating WSDL and Web service wrappers for both .Net and Java/Tomcat Web services. O'Reilly offers one for Java applications, "Creating Web Services with Apache Axis," at OnJava.com, and Microsoft has an excellent set of samples here.

Say a vendor has told you about its Wonderful Web Service; just go to the URL provided and add "/wsdl?" The response should be an XML document in the format discussed in this article.

On Your Level

Understanding the layout of a WSDL file is straightforward--if you take it a level at a time. Here, in an abstract format, is how to read WSDL files and determine the interface that a Web service provides.

• Level 1: There are only two major elements at this level: which version of XML is supported and the top-level definition statement.