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Java Developer Training Courses
Developing Java Web Services
This course prepares Java programmers to develop interoperable Java Web services and using SOAP, WSDL, and XML Schema.
Students get an overview of the interoperable and Java-specific Web services architectures, and then learn the standard APIs for SOAP messaging and WSDL-driven, component-based service development. Both document-style and RPC-style messages and services are covered in depth.
Learning Objectives
- Describe the motivation for developing and using Web services in business software.
- Describe the Web services architecture.
- Describe common scenarios for Web-service implementation and client-side use.
- Describe the Java Web services architecture and the requirements of J2EE 1.4.
- Understand the importance of SOAP to the Web services architecture.
- Read, understand and write SOAP messages.
- Understand the role of JAXM and SAAJ in building low-level Java Web services.
- Build a Java Web service as a JAXM/SAAJ servlet.
- Implement simple point-to-point SOAP communications from a client application.
- Mix and match SAAJ, SAX and DOM code in a Web-service implementation.
- Understand the role of WSDL in providing type information for Web services.
- Write WSDL documents to describe messages, interfaces and services.
- Understand the role of the JAX-RPC in the Java Web services architecture.
- Identify the alternatives for development paths through Java code and WSDL artifacts on server and client sides, and describe the advantages of each.
- Understand the standard mappings between WSDL, XML Schema and Java.
- Analyze Java domain models and identify the useful JAX-RPC types.
- Add a SOAP interface to an existing Java Web application by generating SOAP messaging code using JAX-RPC tools.
- Build a Java Web service based on an existing WSDL document.
- Build a Java Web-service client based on a WSDL document.
- Describe the relationship between the EJB 2.1 and JAX-RPC 1.0 specifications, and how EJBs can implement Web-service endpoints.
- Add a SOAP interface to an existing system of EJBs, and build an EJB implementation of a Web service based on a predefined WSDL descriptor.
- Implement a simple Web service using JSP and JSTL XML tags.
- Implement a JSP Web-service client using custom tags that wrap JAXM.
- Understand the lifecycle and context of JAX-RPC services as J2EE components.
- Describe the use of the JAX-RPC message context in managing SOAP headers.
- Implement a JAX-RPC message handler to adapt an existing Web service.
- Implement a session-aware JAX-RPC Web service that relies on HTTP sessions based on cookies.
- Create, send, receive, and read SOAP attachments using SAAJ or JAX-RPC.
- Describe the various techniques for securing Java Web services available from J2EE and various XML specifications.
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