Web Services Training Overview
Web services are designed to allow Web-based access to distributed software and business services. They bring a standard, open service architecture to component development that allows them to be accessed over the Web with standard protocols such as HTTP and standard XML formats for messages and service descriptions. Web services are still evolving rapidly, and this course will give you a thorough understanding of the current Web services architecture, and the technologies that support Web services including:
- SOAP Simple Object Access Protocol - A remote invocation (RPC) and messaging mechanism.
- WSDL Web services Description Language An XML language that describes the interface and semantics of a Web service.
- UDDI Universal Description, Discovery, and Integration A standard for describing, publishing and finding Web services.
- JSR101/JAX-RPC Accessing Web services using Java
- SAAJ Soap with Attachments API for Java
- WS Security Web Services Security
- WS-I Web Services Interoperability
- JSR109 Creating Web services with J2EE/EJB
We will look at the current state of the art of Web services, what works and what doesnt work, and also at newer standards, and how they fit into the Web services picture. This course is hands on, and students will actually build and deploy a Web service during the course.
Hands-on:
50% hands-on, 50% lecture
Web Services Training Course duration
3 Days
Web Services Training Course outline
Overview of Web Services
- What are Web services?
- Benefits /Shortcoming of Web services.
- Web service components and Technologies
- XML, SOAP, WSDL, UDDI, J2EE, .NET
- Web services Architecture
- Programming Web Services
- SOAP, WSDL and UDDI overview
JAX-RPC / JSR101
- Introduction to JAX-RPC
- Defining a service with JAX-RPC
- JAX-RPC API
- Data Types and Serialization
- Using Complex Types
- Dynamic Clients
- Lab: Creating a Web service
- Lab: Creating a Web service from a Java class with complex types
- Lab: Creating a dynamic JAX-RPC client
SOAP – Simple Object Access Protocol
- Overview
- Message syntax
- Envelope/Header/Body
- Detailed Soap message structure
- SOAP Transport
- Using SOAP
- SOAP encodings
- Lab: Monitoring SOAP Messages with tcpmon
SAAJ – SOAP with Attachments API for Java
- Overview
- SAAJ API
- SOAPMessage, SOAPPart, SOAPEnvelope, SOAPBody
- SOAPConnection
- Creating and sending a synchronous SOAP message
- SOAP Message Details
- JAXM Overview
- SOAP Attachments
- Lab: Creating and invoking a Web service via SOAP
- Lab: Invoking a real world (banking) Web service over the internet
WSDL – Web Services Description Language
- Overview
- Capabilities
- A WSDL Definition
- Format, Semantics, Encoding, Endpoint
- SOAP 1.1 Binding for WSDL
- Lab: Working with the WSDL from our Previously Defined Web Services
UDDI – Universal Description, Discovery, and Integration
- Overview
- Capabilities
- White Pages, Yellow Pages, and Green Pages
- The UDDI data structures
- Publishing Services - The Publish API
- Finding Services - The Inquiry API
- Invoking a service
JAXR – Java API for XML Registries
- Overview
- Business Registries
- JAXR Definition, Architecture and Information Model
- JAXR API and Programming
Web Services Security
- Overview and Concepts
- WS Security Standard
- HTTP Security: HTTP, HTTPS, and SSL3
- Message Level Security: Digital Encryption and XML Digital Signatures
- Securing a SOAP payload
- WS-Security
Web Services Interoperability
- WS-I Overview
- The WS-I Basic Profile
- WS-I suggested practice and architectures
Web Services - New APIs
- JSR-181 - Annotation based Web Services
- The Java Web Service (JWS) file
- Defining a Web service with JSR-181 annotations
- Overview of JSR109
- webservices.xml
- Portability
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