I also encounter a problem like this ：i request the page,shou correct,when i submit the page,rase an error.
jsf page:
<h:selectManyListbox id="teams" value="#{UserForm.userTeamIds}" >
<f:selectItems value="#{UserForm.userTeamMap}"/>
</h:selectManyListbox>
backing bean :
public class UserForm {
private UserService userService;
private User user;
.......
public List<String> getUserTeamIds(){
log.debug("getUserTeamIds go here..");
List<String> li=new java.util.ArrayList<String>();
if(user!=null){
Set<Team> teams=user.getTeams();
for (Iterator<Team> itr=teams.iterator();itr.hasNext();){
Team r=itr.next();
li.add(r.getTeamId().toString());
}
}
return li;
}
/**
* for select many
* @return
*/
public Map<String,String> getUserTeamMap(){
log.debug("getUserTeamMap here :");
java.util.Map<String,String> m=new java.util.LinkedHashMap<String, String>();
if(user!=null){
Set<Team> teams=user.getTeams();
for (Iterator<Team> itr=teams.iterator();itr.hasNext();){
Team t=itr.next();
m.put(t.getTeamName(),t.getTeamId().toString());
}
}
return m;
}
............
}
run in en error :
-------------------------------------------------
javax.servlet.ServletException
javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
root cause
java.util.NoSuchElementException
javax.faces.component.SelectItemsIterator.next(SelectItemsIterator.java:117)
javax.faces.component.SelectItemsIterator.next(SelectItemsIterator.java:164)
javax.faces.component.SelectItemsIterator.next(SelectItemsIterator.java:49)
javax.faces.component.UISelectMany.matchValue(UISelectMany.java:485)
javax.faces.component.UISelectMany.validateValue(UISelectMany.java:454)
javax.faces.component.UIInput.validate(UIInput.java:867)
javax.faces.component.UIInput.executeValidate(UIInput.java:1065)
javax.faces.component.UIInput.processValidators(UIInput.java:666)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIForm.processValidators(UIForm.java:229)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:662)
com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
-------------------------------------------------
i debug in it ,when i post the page,the page invoke the UserForm.getUserTeamMap() method,but return
a empety map,then the server validate the selectmany's available value and selectedItems,then mismath.and throw a exception......is this reson???? who can tell me .
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