The Developing Web Services Using Java Technology course provides business component and client developers with the information they need to create, implement, and deploy web services and web service clients using Java technology components and the Java Platform, Enterprise Edition 6 SDK (Java EE 6 SDK). Students will understand and appreciate web services as a realization of Service Oriented Architecture (SOA), and how to use the Java Platform, Enterprise Edition (Java EE) technology design patterns and best practices when designing web services. Students perform the course lab exercises using the NetBeans Integrated Development Environment (IDE) and GlassFish v3.

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Students who can benefit from this course are: Java Developers building business components and web clients Java Developers interested in preparing for the Sun Certified Java Web Services Developer examination

To succeed fully in this course, students should be able to:

• Demonstrate some knowledge of the declarative programming concepts used in the Java EE technology and be able to create simple Java EE applications
• Create a Java web service
• Demonstrate proficiency with XML and interpret XML documents
• Display experience with the Java programming language and distributed programming (multi-tier architectures)

Upon completion of this course, students should be able to:

• Identify the building blocks of web services
• Analyze the Java web services technology and platform
• Describe Service-Oriented Architecture (SOA)
• Describe web services as a realization of SOA
• Describe Java technologies for web services development
• Implement web services using Java API for XML Web Services (JAX-WS)
• Implement web services using Java API for XML Restful Services (JAX-RS)
• Implement an Enterprise JavaBeans (EJB) endpoint as a web service using JAX-WS and JAX-RS
• Explain and monitor SOAP messages
• Apply SOAP With Attachments API for Java (SAAJ) in web services
• Explain the Web Services Description Language (WSDL) and create a WSDL file
• Develop web service clients for JAX-WS- and JAX-RS-based web services
• Describe and implement various web services-based design and deployment patterns
• Describe and apply various best practices for designing web services

Module 1 - Introduction to Web Services

• Explore the need for web services
• Define a web service and describe the motivation behind developing and using web services in business software
• Describe the characteristics of a web service
• Describe the two major approaches to developing web services
• Describe the advantages of developing web services within a JavaEE container

• Understand how to create web services using JAX-WS:
• Bottom-up, starting from Java classes
• Top-down, starting from WSDL descriptions
• Understand how to deploy web services providers using JavaSE
• Understand how to create and deploy simple web services clients using JavaSE

• Understand the basic structure of a SOAP message, and how it is encapsulated by transports
• Understand how WSDL defines a web service, including its message representation and transport mechanism
• Understand the different styles of SOAP messages that a web service can use, and their trade-offs
• Customize a web service to control the style of SOAP message that that web service will use

• Understand how to deploy POJO web services to a web container
• Understand how to define a web service in terms of an Enterprise Java Bean
• Understand how to deploy an EJB web service to an EJB container
• Describe the benefits associated with implementing a web service as an EJB

• Apply JAXB to pass complex objects to and from a web service
• Understand how to map Java exceptions from a web service endpoint to SOAP faults
• Understand how to inject attributes into JAX-WS web service endpoints
• Describe JAX-WS artifacts that can be injected and how to use them

• Understand how to create web service clients using JAX-WS
• Understand how to create web service clients using JAX-WS that support asynchronous interactions

• Understand what RESTful Web Services are
• Understand the five principles behind RESTful Web Services
• Understand the advantages and disadvantages of a RESTful approach

• Understand how the five principles of RESTful web services map to JAX-RS constructs
• Understand how to implement REST web services using JAX-RS
• Understand how to deploy REST web services using Jersey, an implementation of JAX-RS

• Understand how to create JAX-RS clients using URL and HttpURLConnection
• Understand how to create JAX-RS clients using the Jersey Client API

• Understand how to deploy POJO web services to a web container
• Understand how to define a web service in terms of an Enterprise Java Bean
• Understand how to deploy an EJB web service to an EJB container
• Describe the benefits associated with implementing a web service as an EJB

• Understand how to produce and consume custom types
• Define JAX-RS web services that provide results by linking to other resources
• Understand how to manage exceptions
• Define JAX-RS web services in terms of resources and sub-resources
• Understand the different scopes defined by JAX-RS for web services endpoints

• Understand the trade-offs involved in the choice to implement a web service using either JAX-WS or JAX-RS technology

• Describe web services-based design patterns
• Describe web services-based deployment patterns

• Describe JAX-WS-specific design patterns
• Recognize and apply best practices associated with implementing web services using JAX-WS

• Describe JAX-RS-specific design patterns
• Recognize and apply best practices associated with implementing web services using JAX-RS

• Understand the trade-offs involved in the choice to implement a web service using either
• JAX-WS or JAX-RS technology

• Describe web services-based design patterns
• PAOS Interactions
• Asynchronous Interaction
• JMS Bridge
• Describe web services-based deployment patterns
• HTTP Load Balancer
• Container Cluster

• Describe JAX-WS-specific design patterns
• Recognize and apply best practices associated with implementing web services using JAX-WS

• Describe JAX-RS-specific design patterns
• Recognize and apply best practices associated with implementing web services using JAX-RS