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:
In this link you can find appropriate answer for your question i hope it will help next questioner
来源：https://stackoverflow.com/questions/2809743/are-there-any-jsf-components-for-implementing-breadcrumb-navigation