Are there any JSF components for implementing brea

问题:

As far as I know there are two "kinds" of breadcrumbs.

The static/hierarchy one

• Works like a stack
• Entries are pushed when a user goes "deeper" into the site
• Entries are poped when user goes "up" into the site
• Is the same for all users (for a given page)
• Shows location rather than history

A simple Example would be HOME -> BIG CATEGORY -> SMALL CATEGORY -> ARTICLE

The dynamic/historical one

• Works like a queue
• Entries are pushed at the end when a user goes to another page
• Entries are removed from the front when the maximum size is reached
• Is different for each user, since it is personalized.
• Shows timeline/history instead of location.

A simple example would be SMALL CATEGORY -> HOME -> BIG CATEGORY -> HOME

The question is:

Are there any ready-made JSF component for these types of navigation?

回答1:

see primefaces, there are lot of components and you can find breadcrumb too http://www.primefaces.org:8080/showcase/ui/breadCrumb.jsf

回答2:

I have the same issue! But I feel like the solution will be the one mentioned by @BalusC

Now, I am using the breadcrumb only to get the current view path.

 <h:form id="breadcrumb">
                        <p:breadCrumb>
                            <p:menuitem value="#{bundle.Index}" action="/index?faces-redirect=true" immediate="true"/>
                            <p:menuitem value="#{view.viewId.substring(0, view.viewId.length()-6)}" url="#{view.viewId.substring(0, view.viewId.length()-6)}.jsf" ajax="false"/>

                        </p:breadCrumb>
                    </h:form>

I am using .jsf as Faces URL pattern and since the viewid = /*.xhtml**, I had to substring it, remove the .xhtml substring and add the .jsf string.

So we need a backing bean that does the job of getting the viewid (path) and put it in an ordered List. The use of javascript:history.back() and history.forward() is also possible!

回答3:

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