Wyn Easton

Converting a Web site to a Web service requires some new tools in your programming toolbox. For Web services that need to exchange arbitrary Java objects, you can add the tools described here. I'll show you how to exchange Java objects using SOAP RPC and invoke methods on these objects. The source code for the examples as well as the listings discussed here can be downloaded from www.sys-con.com/webservices/sourcec.cfm. The example code consists of a client and a simple Web service (see Figure 1). The client is a Java application named Client. The Web service code is a Java class called ObjectDepot. ObjectDepot exposes two SOAP callable methods using a deployment descriptor named DeploymentDescriptor.xml. The method getMyObject() will return an instance of AClass. The method getObject (String name) returns an instance of a named class that is passed as a String param... (more)