• Java Training

    javaInterSource offers live instructor-led courses on all important Java-related technologies, including Apache Struts, Enterprise Java Beans (EJB), J2SE Desktop Java Enterprise Edition (Java EE), Java Fundamentals, Java Web Services, JavaServer Faces, JBoss, Java Server Pages (JSP), and Spring.

    Please refer to our detailed course outlines below.

  • About Java

    Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. Java applications are typically compiled to bytecode (class file) that can run on any Java Virtual Machine (JVM) regardless of computer architecture

    Java is general-purpose, concurrent, class-based, and object-oriented, and is specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere". Java is considered by many as one of the most influential programming languages of the 20th century, and widely used from application software to web application.

    Read More

  • Course Details Java

    Classes are offered at client sites, at our Geneva training center, and via a live web conference. For detailed course outlines and scheduled classes, please see below.

    To book training, navigate to the course you need, then:

    • For scheduled online classes, register from the choices indicated.
    • If you need an alternative date, time or location, or if you want a live classroom course, click on “request an offer for this course,” to complete the form.

RESTful Services Training: Developing RESTful Services in Java

Course duration

  • 5 days

Course Benefits

  • Understand the advantages of the REST architecture for web services.
  • Use JAX-RS to develop simple RESTful services.
  • Control dispatching to service methods based on URL patterns and HTTP methods.
  • Bind request values to method parameters when expressed as HTTP query parameters, form values, headers, cookies, and more.
  • Manage XML and JSON content using XML Schema and JAXB -- or without JAXB using leading JAX-RS providers and Reflection-driven entity providers such as MOXy and Jackson.
  • Handle error conditions by producing appropriate HTTP responses.
  • Use JSR-303 validation for request parameters, headers, and entities.
  • Use Java generics to implement REST API patterns for various domain classes.
  • Take advantage of lifecycle and context services available to JAX-RS services.
  • Organize request-handling methods into sub-resource classes to make REST APIs extensible and maintainable.
  • Implement REST clients using the JAX-RS standard API.
  • Build filters and interceptors to adapt service endpoint behavior.
  • Develop unit tests for JAX-RS services that cover both method code and JAX-RS annotations, using the Jersey test framework.
  • Be aware of security concerns for RESTful services and secure services appropriately.

Course Outline

  1. Overview of REST and JAX-RS
    1. The REST Vision
    2. Use of HTTP
    3. Use of URIs
    4. Use of Content Types
    5. CRUD Operations and Business Operations
    6. HATEOAS and the Richardson Maturity Model
    7. JAX-RS
    8. Applications, Resources, and Providers
  2. Configuration and Lifecycle
    1. The JAX-RS Application
    2. XML Configuration
    3. Annotation-Driven Configuration
    4. Applications
    5. Root Resource Classes
    6. Per-Request vs. Singleton Lifecycle
    7. Providers
  3. Handling Requests
    1. The Application Path
    2. The @Path Annotation
    3. The HTTP Method Annotations
    4. Sub-Resource Locators
    5. Annotation Inheritance and overriding
    6. @XXXParam Annotations
    7. The @DefaultValue Annotation
    8. Parameter Types
    9. Parameter Converters
  4. Producing Responses
    1. Supported Return Types
    2. The Response Class
    3. Response Entities
    4. Binary Content
    5. Delivering a File
  5. Entity Translation
    1. Entity Parameter and Return Type
    2. Entity Providers
    3. @Consumes and @Produces Annotations
    4. Built-In Entity Providers
    5. Custom Entity Providers
  6. Working with XML and JSON
    1. The JAXB Entity Provider
    2. Driving XML Representations from Schema
    3. Driving JSON Representations with JAXB
    4. JSON Without JAXB: Jackson, MOXy, etc.
    5. CRUD Patterns
    6. Error Handling
    7. Sub-Resources
  7. Dependency Injection
    1. The @Context Annotation
    2. Injectable Types
    3. The Application Subclass
    4. Servlet Configuration and Context
    5. Impact of Lifecycle Policies
    6. Context Providers
    7. Using CDI
  8. Validation and Error Handling
    1. Using Response
    2. Throwing WebApplicationException
    3. Exception Mapping Providers
    4. Selection of Exception Mappers
    5. Java EE Bean Validation
    6. Constraint Annotations
    7. Support for JSR-303
    8. Annotating Method Parameters
    9. Annotating Entity Classes
    10. Error Reporting
  9. Generic Services
    1. Generic Entities
    2. Generic Entity Providers
    3. ParameterizedType
    4. Reflection-Driven Entity Providers
    5. Annotation Inheritance
    6. CRUD Patterns, II
    7. Serialization, Recursion, and Scope
    8. Dynamic Sub-Resources
  10. Working with Databases
    1. Persistence Services
    2. The Java Persistence API
    3. JPA Support for JSR-303
    4. Handling IDs and Keys
    5. Cascading
    6. Caching
    7. Error Handling
    8. Hypermedia Challenges
  11. Sub-Resources
    1. Significance of Sub-Resources
    2. Exposing Sub-Objects
    3. Exposing Collections
    4. Multiple Paths to Resources
    5. Exposing Actions
    6. Using Sub-Resource Locators
    7. Collection vs. Instance Services
  12. The Client API
    1. The Builder Pattern
    2. Client
    3. WebTarget
    4. Invocation
    5. Basic Usage
    6. Managing Content Types and Entities
    7. Error Handling
    8. Registering Providers
    9. The Service Locator Pattern
    10. Generic Clients
  13. Filters and Interceptors
    1. The Filter Interfaces
    2. Processing Pattern
    3. The Request and Response Context Interfaces
    4. Aborting a Request
    5. The Interceptor Interfaces
    6. Adaptive Streams
    7. Filters on the Client Side
    8. Interceptor Strategy for Hypermedia
  14. Testing
    1. Testing JAX-RS Services
    2. Unit Testing and Integration Testing
    3. Mocking the Container
    4. The Jersey Test Framework
    5. Test Configuration
    6. Mocking Dependencies
    7. Testing JAX-RS Clients
    8. Mocking Services
  15. Security
    1. Concerns for RESTful Services
    2. Authentication and Authorization
    4. HTTPS
    5. Programmatic Security
    6. SQL Injection
    7. Cross-Site Request Forgery
    8. Message-Level Security
    9. HMACs

Class Materials

Each student will receive a comprehensive set of materials, including course notes and all the class examples.

Class Prerequisites

Experience in the following is required for this Java class:

  • Strong Java programming skills are essential
  • Experience with other Java EE standards, especially servlets and JSP, will be very helpful in class, but is not strictly required.
Since its founding in 1995, InterSource has been providing high quality and highly customized training solutions to clients worldwide. With over 500 course titles constantly updated and numerous course customization and creation possibilities, we have the capability to meet your I.T. training needs.
Instructor-led courses are offered via a live Web connection, at client sites throughout Europe, and at our Geneva Training Center.