Practical Apache Struts2 Web 2.0 projects by Ian Roughley

By Ian Roughley

Apache Struts has lengthy supplied Java builders with a robust framework for development extensible, maintainable net functions. but the model 2 unlock takes builders’ functions to the following point, having built-in Ajax aid, the power to simply integration with the Spring framework, and the power to take complete good thing about POJOs. Practical Apache Struts 2 internet 2.0 Projects indicates you the way to capitalize upon those positive aspects to construct next–generation net purposes that either enthrall and empower your users.

  • Gain an in–depth figuring out of the Struts framework, with unique awareness paid to key model 2 features
  • Learn easy methods to benefit from net 2.0 thoughts along Struts 2 to construct next–generation internet sites
  • Follow in addition to the advent of significant strategies and improvement recommendations in terms of an internet site undertaking heavily reminiscent of what it's possible you'll come upon in any firm environment

What you’ll learn

  • Build a pragmatic Struts 2 net 2.0–enabled software undertaking from the floor up
  • Enable participation by means of manipulating data
  • Share info via enforcing robust seek utilities
  • Syndicate websites created utilizing RSS and REST
  • Discover complex positive factors on hand in Struts 2 net framework
  • Integrate Ajax frameworks to provide user–friendly, responsive interfaces
  • Integrate and use Struts 2 with different frameworks reminiscent of Spring to shape a broader firm Java program stack

Who this ebook is for

builders who desire a hands–on useful e-book demonstrating how internet 2.0 positive aspects are applied in Struts 2. The viewers may well diversity from newbie to complex, because the configuration and simple framework utilization might be defined, in addition to the complicated extension beneficial properties. The publication might additionally entice builders who desire to comprehend the net 2.0 improvement paradigm from an implementation perspective.

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Example text

Model object: When the action implements the ModelDriven interface, the model object is placed on the stack in front of the action that is being executed; this level will not be present if the interface is not implemented by the action. • Action object: This is the action that is currently being executed. • Named objects: Any object can be assigned an identifier, making it a named object. Named objects can be developer created but also included are #application, #session, #request, #attr, and #parameters—each corresponding to an equivalent HTTP scoped object collection.

Token Session Interceptor tokenSession Same as token, but for invalid tokens, the submitted data is stored in the session. Validation Interceptor validation Provides validation support for actions. Workflow Interceptor workflow Redirects to an INPUT view without executing the action when validation fails. Each interceptor provides a distinct feature to the action. As you can imagine, providing a fully equipped execution environment to an action requires more than one interceptor to be applied. Struts2 manages this by allowing interceptor stacks to be created and then referenced by actions, rather than needing each and every interceptor to be configured for each action.

Workflow Interceptor workflow Redirects to an INPUT view without executing the action when validation fails. Each interceptor provides a distinct feature to the action. As you can imagine, providing a fully equipped execution environment to an action requires more than one interceptor to be applied. Struts2 manages this by allowing interceptor stacks to be created and then referenced by actions, rather than needing each and every interceptor to be configured for each action. Table 3-2 lists the provided preconfigured stacks that are available and the interceptors that they contain.

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