Hello Struts2 Users,
I am attempting to utilize the ScopedModelDriven interceptor to manage
user input across multiple form submits, in the style of a simple wizard
with sequential pages of input. I have declared my Action class
('ScopedModelDrivenAction ') to implement 'ScopedModelDriven' and
provided the necessary setter/getters. My param mapping is functioning
properly to support ModelDriven approach, as evidenced by the previous
step input available through <s:property...> in subsequent step.
My issue seems to be when I apply the "<param
name="scope">session</param>" to the interceptor, it has no effect.
I have created a simplistic example below and included all relevant
code. I have the feeling I am close, but the solution is eluding me. I
have been through all the documentation I can find on
"ScopedModelDriven", including the "Struts 2 in Action" book I
purchased. Unfortunately I can find no complete working example of this
feature.
Any help is greatly appreciated.
Cheers,
Andy
Struts.XML:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration
2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd";>
<struts>
<package name="test" namespace="/srsm"
extends="struts-default">
<interceptors>
<interceptor
name="alias"
class="com.opensymphony.xwork2.interceptor.AliasInterceptor" />
<interceptor
name="autowiring"
class="com.opensymphony.xwork2.spring.interceptor.ActionAutowiringInterc
eptor" />
<interceptor
name="chain"
class="com.opensymphony.xwork2.interceptor.ChainingInterceptor" />
<interceptor
name="conversionError"
class="org.apache.struts2.interceptor.StrutsConversionErrorInterceptor"
/>
<interceptor
name="createSession"
class="org.apache.struts2.interceptor.CreateSessionInterceptor" />
<interceptor
name="debugging"
class="org.apache.struts2.interceptor.debugging.DebuggingInterceptor" />
<interceptor
name="externalRef"
class="com.opensymphony.xwork2.interceptor.ExternalReferencesInterceptor
" />
<interceptor
name="execAndWait"
class="org.apache.struts2.interceptor.ExecuteAndWaitInterceptor" />
<interceptor
name="exception"
class="com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor"
/>
<interceptor
name="fileUpload"
class="org.apache.struts2.interceptor.FileUploadInterceptor" />
<interceptor name="i18n"
class="com.opensymphony.xwork2.interceptor.I18nInterceptor" />
<interceptor
name="logger"
class="com.opensymphony.xwork2.interceptor.LoggingInterceptor" />
<interceptor
name="modelDriven"
class="com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor" />
<interceptor
name="scopedModelDriven"
class="com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor"
/>
<interceptor
name="params"
class="com.opensymphony.xwork2.interceptor.ParametersInterceptor" />
<interceptor
name="prepare"
class="com.opensymphony.xwork2.interceptor.PrepareInterceptor" />
<interceptor
name="staticParams"
class="com.opensymphony.xwork2.interceptor.StaticParametersInterceptor"
/>
<interceptor
name="scope"
class="org.apache.struts2.interceptor.ScopeInterceptor" />
<interceptor
name="servletConfig"
class="org.apache.struts2.interceptor.ServletConfigInterceptor" />
<interceptor
name="sessionAutowiring"
class="org.apache.struts2.spring.interceptor.SessionContextAutowiringInt
erceptor" />
<interceptor
name="timer"
class="com.opensymphony.xwork2.interceptor.TimerInterceptor" />
<interceptor
name="token"
class="org.apache.struts2.interceptor.TokenInterceptor" />
<interceptor
name="tokenSession"
class="org.apache.struts2.interceptor.TokenSessionStoreInterceptor" />
<interceptor
name="validation"
class="org.apache.struts2.interceptor.validation.AnnotationValidationInt
erceptor" />
<interceptor
name="workflow"
class="com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor"
/>
<interceptor
name="store"
class="org.apache.struts2.interceptor.MessageStoreInterceptor" />
<interceptor
name="checkbox"
class="org.apache.struts2.interceptor.CheckboxInterceptor" />
<interceptor
name="profiling"
class="org.apache.struts2.interceptor.ProfilingActivationInterceptor" />
<interceptor
name="roles"
class="org.apache.struts2.interceptor.RolesInterceptor" />
<interceptor-stack
name="customStack">
<interceptor-ref name="exception" />
<interceptor-ref name="alias" />
<interceptor-ref name="servletConfig" />
<interceptor-ref name="prepare" />
<interceptor-ref name="i18n" />
<interceptor-ref name="chain" />
<interceptor-ref name="debugging" />
<interceptor-ref name="profiling" />
<interceptor-ref name="scopedModelDriven">
<param name="scope">session</param>
</interceptor-ref>
<interceptor-ref name="modelDriven" />
<interceptor-ref name="fileUpload" />
<interceptor-ref name="checkbox" />
<interceptor-ref name="staticParams" />
<interceptor-ref name="params">
<param name="excludeParams">dojo\..*</param>
</interceptor-ref>
<interceptor-ref name="conversionError" />
<interceptor-ref name="validation">
<param name="excludeMethods">input,back,cancel,browse</param>
</interceptor-ref>
<interceptor-ref name="workflow">
<param name="excludeMethods">input,back,cancel,browse</param>
</interceptor-ref>
</interceptor-stack>
</interceptors>
<action name="ScopedModelDrivenSubmit2"
class="test.struts.ScopedModelDrivenAction">
<interceptor-ref
name="customStack" />
<result>/srsm/test/ScopedModelDrivenResults.jsp</result>
</action>
<action name="ScopedModelDrivenSubmit1"
class="test.struts.ScopedModelDrivenAction">
<interceptor-ref
name="customStack" />
<result>/srsm/test/ScopedModelDrivenForm2.jsp</result>
</action>
</package>
</struts>
ScopedModelDrivenAction.java:
package test.struts;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.interceptor.ScopedModelDriven;
public class ScopedModelDrivenAction extends ActionSupport implements
ScopedModelDriven<UserModel> {
private static final long serialVersionUID = 1L;
private UserModel user = new UserModel();
public void setUser(UserModel usr) {
user = usr;
}
public UserModel getUser() {
return user;
}
/**
* Implementation for ScopedModelDriven
*/
private String scope = "";
@Override
public String getScopeKey() {
return scope;
}
@Override
public void setModel(UserModel arg0) {
user = arg0;
}
@Override
public void setScopeKey(String arg0) {
scope = arg0;
}
@Override
public UserModel getModel() {
return user;
}
}
UserModel.java:
package test.struts;
public class UserModel {
private String firstname = "";
private String lastname = "";
public void setFirstname(String fn) {
firstname = fn;
}
public void setLastname(String ln) {
lastname = ln;
}
public String getFirstname() {
return firstname;
}
public String getLastname() {
return lastname;
}
}
