Introduction of Struts 2 Result types
In the Apache Struts 2 framework after executing the Action class , the
target view page will be executed based on configuration in struts.xml. The
result type is used to change the behaviour of view page to render the contents
of action class.
The framework provides several implementations of the
com.opensymphony.xwork2.Result interface, ready to use in your own
applications.
| Chain Result |
Used for Action Chaining |
| Dispatcher Result |
Used for web resource integration, including JSP
integration |
| FreeMarker Result |
Used for FreeMarker integration |
| HttpHeader Result |
Used to control special HTTP behaviors |
| Redirect Result |
Used to redirect to another URL (web resource)
|
| Redirect Action Result |
Used to redirect to another action mapping |
| Stream Result |
Used to stream an InputStream back to the browser
(usually for file downloads) |
| Velocity Result |
Used for Velocity integration |
| XSL Result |
Used for XML/XSLT integration |
| PlainText Result |
Used to display the raw content of a particular
page (i.e jsp, HTML) |
| Tiles Result |
Used to provide Tiles integration |
In Struts 2 the tag plays the role of a view in the
Struts2 MVC framework. The action is responsible for executing the business
logic. The next step after executing the business logic is to display the view
using the tag. Often there is some navigation rules
attached with the results. For example, if the action method is to authenticate
a user, there are three possible outcomes.
- Successful Login
- Unsuccessful Login - Incorrect username or
password
- Account Locked.
