Name | Spring Webflow Plugin | ||
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AuthorPublisher | Tom Schneider | ||
License | Open Source (ASL2) | Homepage | |
Version | 1.0.0-beta13 Production | ||
Compatibility | Struts 2.0.26+ | ||
State | Unstable | ||
License | Open Source (ASL2) | ||
Homepage | |||
Download |
Overview
This plugin excerptThe Spring Webflow plugin INLINE
integrates Spring Webflow (SWF) with Struts2Struts 2
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Features
- Allows struts2 Struts 2 to execute spring webflows
- Allows struts2 Struts 2 actions to be invoked by spring webflow.
- Includes an interceptor that injects flow scope properties into struts2 Struts 2 actions.
- Includes an annotation-based interceptor that injects flow scope properties into struts2 Struts 2 actions.
- SWF flow execution key can be managed in the session rather than as a hidden field on the client.
Requirements
- Spring 2.0+
- Spring Webflow 1.0+
- Struts 2.0.6+
- Struts2Webflow 1.0.3+
Installation
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See http://code.google.com/p/struts2plugin-maven-repo/ if you use maven.
For non-maven users, this This plugin can be installed by copying the plugin jar into your application's /WEB-INF/lib
directory. No other files need to be copied or created.
Version History
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Version
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Date
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Author
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Notes
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1.0.0-beta1
Getting Started
Prerequisite
For background information on the core Spring Webflow concepts, visit http://www.ervacon.com/products/swf/intro/.
Step 1 - Create your flow definition xml
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Step 2 - Configure Spring's applicationContext.xml
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The Struts2FlowAdapter allows a Struts 2 action to execute a webflow action-state. The Struts2FlowAdapter uses the id of the action state as the name of Struts 2 action to execute. The alwaysRedirectOnPause is disabled because whether to redirect or not is easier to control in the Struts 2 configuration files.
Step 3 - Add SWF interceptors to Struts's struts.xml configuration file
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The SessionFlowExecKeyInterceptor puts the flow execution key in the session rather than having it as a hidden field on the form that submitted back. The AnnotationFlowScopeInterceptor uses annotations to bind Struts 2 action variables to and from flow scope. Before an action executes, this interceptor looks for @FlowIn annotated properties of the Struts 2 action and populates the these actions from flow scope. After the action has executed, properties annotated with the @FlowOut annotation are put back into flow scope.
Step 4 - Configure the FlowAction so Spring Webflows can be executed
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For each view-state defined in the flow xml definition, there should be a corresponding result entry in the FlowAction definition. (Or a global result for that view-state)
Step 5 - Access the flow
The flow can now be launched by accessing the FlowAction.
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Jan 4, 2007
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Tom Schneider
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