1Z0-897: Java EE - Develop Web Services with JAX-WS & JAX-RS
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Description
El presente curso oficial de Oracle está diseñado para otorgar a los participantes una base sólida en el uso de JAX-WS y JAX-RS para simplificar el desarrollo de servicios web SOAP y RESTful dentro de sus aplicaciones en la plataforma Java EE.
Java EE 6 facilita el desarrollo de aplicaciones multiplataforma mediante la creación de servicios web RESTful, utilizando el formato de intercambio de datos JSON, compatibles con aplicaciones web HTML5 y clientes móviles -entre otros-.
Dicho curso se enmarca dentro del programa Workforce Development Program (WDP), iniciativa diseñada por Oracle para ayudar a la nueva generación de profesionales TI a aprender las habilidades más demandadas sobre tecnologías Oracle, así como ayudarles en su preparación a los exámenes de certificación asociados al curso, suponiendo un valor añadido y diferenciador en su perfil profesional.
Audience and prerequisites
Este curso está dirigido a desarrolladores de aplicaciones web en la plataforma Java EE interesados en conocer JAX-WS y/o JAX-RS para simplificar el desarrollo de servicios web SOAP y RESTful en sus aplicaciones.
Para un máximo aprovechamiento del curso, los participantes deberán poseer conocimientos del paradigma de programación orientado a objetos (tanto a nivel teórico como práctico), experiencia en el uso del lenguaje de programación Java y conocimientos sobre HTML5, CSS3 y Javascript.
Objectives
Una vez finalizado el curso, el alumno habrá adquirido los conocimientos y habilidades para:
- Crear documentos y schemas XML usando namespaces.
- Producir y consumir XML y JSON mediante JAXB.
- Comprender los archivos WSDL y su rol en los servicios web SOAP.
- Desarrollar un servicio web SOAP de tipo top-down (WSDL first) o de tipo bottom-up (code first).
- Diseñar e invocar servicios web basados en SOAP utilizando JAX-WS (Metro Stack).
- Diseñar e invocar servicios web basados en REST utilizando la especificación JAX-RS (Jersey Stack).
- Habilitar seguridad en los servicios web usando Java EE Security, WS-Security extensions y OAuth 1.0a.
Topics
An Introduction to Web Services
- Explaining the need for web services
- Defining web services
- Explaining the characteristics of a web service
- Explaining the use of both XML and JSON in web services
- Identifying the two major approaches to developing web services
- Explaining the advantages of developing web services within a Java EE container
XML
- Describing the Benefits of XML
- Creating an XML Declaration
- Assembling the Components of an XML Document
- Declaring and Apply XML Namespaces
- Validating XML Documents using XML Schemas
- Creating XML Schemas
JAXB
- Listing the Different Java XML APIs
- Explaining the Benefits of JAXB
- Unmarshalling XML Data with JAXB
- Marshalling XML Data with JAXB
- Compiling XML Schema to Java
- Generating XML Schema from Java Classes
- Applying JAXB Binding Annotations
- Creating External Binding Configuration Files
SOAP Web Services
- SOAP message structure
- Using WSDL files to define web services
- WS-I Basic Profile and WS-Policy
Creating JAX-WS Clients
- Using tools to generate JAX-WS client artifacts
- Calling SOAP web services using JAX-WS in a Java SE environment
- Using JAXB Binding customization with a SOAP web service
- Creating a JAX-WS Dispatch client
- Creating a client that consumes a WS-Policy enhanced services (WS-MakeConnection)
RESTful Web Services
- Describing the RESTful architecture and how it can be applied to web services
- Designing a RESTful web service and identify resources
- Navigating a RESTful web service using hypermedia
- Selecting the correct HTTP method to use when duplicate requests must be avoided
- Identifying Web Service result status by HTTP response code
- Version RESTful web services
Creating RESTful Clients in Java
- Using Java SE APIs to make HTTP requests
- Using the Jersey Client APIs to make HTTP requests
- Processing XML and JSON in a RESTful web service client
Bottom-Up JAX-WS Web Services
- Describing the benefits of Code First Design
- Creating JAX-WS POJO Endpoints
- Creating JAX-WS EJB Endpoints
Top-Down JAX-WS Web Services
- Describing the benefits of WSDL First Design
- Generating Service Endpoint Interfaces (SEIs) from WSDLs
- Implementing Service Endpoint Interfaces
- Customizing SEI Generation
JAX-RS RESTful Web Services
- Download, Install, and Configure Jersey
- Creating Application Subclasses
- Creating Resource Classes
- Creating Resource Methods, Sub-Resource Methods, and Sub-Resource Locator Methods
- Producing and Consume XML and JSON content with JAX-RS
Web Service Error Handling
- Describing how SOAP web services convey errors
- Describing how REST web services convey errors
- Returning SOAP faults
- Returning HTTP error status codes
- Handling errors with SOAP clients
- Handling errors with Jersey clients
Security Concepts
- Explaining Authentication, Authorization, and Confidentiality
- Applying Basic Java EE Security by using deployment descriptors (web.xml)
- Creating users and groups and map them to application roles
- Detailing possible web service attack vectors
WS-Security
- Describing the purpose of WS-Policy, WS-SecurityPolicy, WS-Security
- Configuring WebLogic Server for WS-Security
- Applying WS-Policy to WebLogic JAX-WS Web Services
- Signing and Encrypt SOAP Messages using WS-Security
Web Service Security with Jersey
- Applying JSR-250 Security Annotations such as @RolesAllowed
- Enabling an assortment of filters including the RolesAllowedResourceFilterFactory
- Obtaining a SecurityContext and perform programmatic security
- Authenticating using the Jersey Client API
OAuth 1.1a with Jersey
- Describing the purpose of OAuth
- Describing the request lifecycle when using OAuth
- Creating OAuth enabled services using Jersey
- Creating OAuth enabled clients using Jersey
Open calls
Informative note
PUE is recognised as an official training center by Oracle with the figure Oracle Approved Education Center (OAEC).
PUE also has the recognition of being part of Oracle's WDP - Workforce Development Program. The aim of the WDP initiative is to help academic institutions to prepare students as future specialists in the most demanded technologies in the labor market.
The training provided by PUE in its calendar courses is part of the WDP initiative and is aimed at students who, both unemployed and working professionals, wish to access in the most advantageous possible way to courses in Oracle technologies (data bases, Java, etc.) officially and recognized.
