I have this composition :
<!DOCTYPE html>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:panelGroup rendered="#{empty userc.userb.user.id}">
<h:panelGrid columns="2" >
<h:outputLink value="system/register.xhtml">Register</h:outputLink>
<h:outputLink value="system/login.xhtml">Login</h:outputLink>
</h:panelGrid>
</h:panelGroup>
</ui:composition>
If the user click in Login the page is redirect to system/login.xhtml, which is correct, but if the user, click in Login again, it is redirect to system/system/login.xhtml.
I know a solution for this, which BalusC help me out a long time ago:
<base href="#{fn:replace(request.requestURL, fn:substring(request.requestURI, 1, fn:length(request.requestURI)), request.contextPath)}/" />
It solve my problem, but if I have some ManageBean instancied when I click in some link the bean it's invalidate.
How mantain the url path in every link page and keep the session in the Managed beans ?
Use <h:link> instead. JSF will append the right context path and FacesServlet mapping.
<h:link value="Register" outcome="/system/register" />
<h:link value="Login" outcome="/system/login" />
See also:
Communication in JSF 2.0 - Implicit navigation
Related
This question already has an answer here:
How to navigate in JSF? How to make URL reflect current page (and not previous one)
(1 answer)
Closed 6 years ago.
let the following code fragment contains a link to items.xhtml that lists item names and enables the user to select an item in order to view its details:
<?xml ... ?>
<!DOCTYPE ... >
<html ... >
<h:head>
<title>Welcome</title>
</h:head>
<h:body>
<h:outputLink value="#{facesContext.externalContext.requestContextPath}/faces/client/items.xhtml">Items</h:outputLink>
</h:body>
</html>
When the user clicks the link named Items, then the request line states that the resource being requested is /javaee7-training/faces/client/items.xhtml and the desired action that should be applied to it is GET. That is fine.
The following code shows a fragment of items.xml:
<?xml ... ?>
<!DOCTYPE ...>
<html ...>
<h:head>
<title>items</title>
</h:head>
<h:body>
<h:form prependId="false">
<h:selectOneRadio value="#{bean.itemId}"
layout="pageDirection">
<c:forEach items="#{bean.items}" var="itm">
<f:selectItem itemValue="#{itm.itemno}"
itemLabel="#{itm.itemname}" />
</c:forEach>
</h:selectOneRadio>
<h:commandButton value="Details" action="item" />
</h:form>
</h:body>
</html>
Now when the user clicks the button named Details, then the request line states that the resource being requested is /javaee7-training/faces/client/items.xhtml and the desired action that should be applied to it is POST. I don´t expected this result, because when the user clicks the button named Details, then the requested resource is /javaee7-training/faces/client/item.xhtml and the desired action is GET.
Could anyone explain me this result and why I am wrong?
Thank you in advance
<h:commandButton> Always fire a post request because it is supposed to inside the <h:form>. And forms are always submitted as POST request in JSF arena. If you need to fire GET request use <h:button> instead of <h:commandButton>.
Usage Example:
<h:button value="Click Me!!" outcome="item"> <!--viewId is item insted of items-->
<f:param name="item1" value="itemVal1" />
<f:param name="item2" value="itemVal2" />
</h:button>
I have some troubles with partial update of jsf 2.0 page.
I have dropdown menu with few choices. Depending on choice I show different page. When I load page first time it shows css and javascript works fine. When I change another option in dropdown menu this part of page which has been re rendered appearing without css and javascript on it doesn't work.
This is example of page itself which I using, template.xhtm and bean are pretty generic therefor I didn't include it.
<ui:composition template="/template.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:t="http://myfaces.apache.org/tomahawk"
xmlns:h="http://java.sun.com/jsf/html">
<ui:define name="body">
<h:form>
<h:selectOneMenu value="#{bean.answer}">
<f:selectItems value="#{bean.answers}" />
<f:ajax event="change" render="includeContainer #All" />
</h:selectOneMenu>
</h:form>
<h:panelGroup id="includeContainer">
<h:panelGroup library="primefaces" name="jquery/jquery.js"
rendered="#{bean.answer == 'yes'}">
<ui:include src="answer_yes.xhtml"></ui:include>
</h:panelGroup>
<h:panelGroup rendered="#{bean.asnwer == 'no'}">
<ui:include src="answer_no.xhtml"></ui:include>
</h:panelGroup>
</h:panelGroup>
</ui:define>
</ui:composition>
One important remark regarding template that I use this statement to include css, it's located on remote server and I can't download and place it locally, it's company's policy.
<link href="http://server.com/resources/w3.css" rel="stylesheet" title="w3" type="text/css" />
Thank you in advance for your help.
You can put rendered panel group inside an <h:form id="toberendred"> and re-render this form instead of h:panelGroup.
For proper (JSF way) loading your css file from remote server you can use Omnifaces CDNResourceHandler
In addition you got some serious issues in your code:
Why use #all (fix to lowercase) with additional (includeContainer) selector? , do view source and see that you can't render <ui:include in view source you will see content of both yes and no xhtmls + <h:panelGroup got no attributes library and name...
I cannot redirect to another page if the code is like this:
<h:commandButton type="button" value="Enter" action="index?faces-redirect=true" >
But the redirect works if the code is:
<h:commandButton type="button" value="Enter" action="index?faces-redirect=true" >
<f:ajax />
</h:commandButton>
Could anyone explain this? Thanks!
-----------------------EDIT------------------------
The entire xhtml code for your reference:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<h:form id="form">
<h:commandButton id="enterModelButton" type="button" value="Enter" action="index?faces-redirect=true" >
<f:ajax />
</h:commandButton>
</h:form>
</h:body>
</html>
The <h:commandButton type="button"> doesn't generate a submit button. It just generates a "dead" button without any effects, purely intented to be used for custom onclick="..." scripts and like. This is somewhat a leftover of the dark JSF 1.0/1.1 era, when it wasn't nicely possible to just use plain vanilla HTML in JSF for this kind of things.
The <f:ajax> performs the submit by ajax powers through JSF-generated onclick. It doesn't care about the button's type.
Essentially, removing type="button" and relying on its default type="submit" should fix your problem.
<h:commandButton value="Enter" action="index?faces-redirect=true" />
However, all with all, if this is the real code and you don't actually intend to invoke a bean action, then you're going in completely the wrong direction as to implementing the functional requirement of navigating to a different page by a button. You should be using <h:button> instead.
<h:button value="Enter" outcome="index" />
See also:
Difference between h:button and h:commandButton
How to navigate in JSF? How to make URL reflect current page (and not previous one)
I have the following page:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
<title>Fire - Registration</title>
</h:head>
<h:body>
<f:view>
<f:event type="preRenderView" listener="#{confirmPasswordResetBean.bindSessionKey()}"/>
</f:view>
<p:growl id="growl" showDetail="true" life="5000" />
<h:form>
<p:panel header="Select your new password">
<h:panelGrid columns="2" cellpadding="5">
<p:outputLabel for="newPassword" value="Type your new password"/>
<p:password id="newPassword"
value="#{confirmPasswordResetBean.firstPassword}"
feedback="true"/>
<p:outputLabel for="retypedPassword" value="Retype your password"/>
<p:password id="retypedPassword"
value="#{confirmPasswordResetBean.secondPassword}"/>
</h:panelGrid>
<p:commandButton id="confirmButton"
value="reset"
action="#{confirmPasswordResetBean.doResetPassword()}"
update=":growl"/>
</p:panel>
</h:form>
</h:body>
The backing bean used above is RequestScoped, and the page itself takes a single parameter (sessionKey)...what I want to do is to:
1. Bind sessionKey to a variable in the backing bean. This is straightforward enough.
2. Use the bound value of sessionKey when executing dedicated logic in the same bean, when the client presses the commandButton.
The problem is that pressing the button starts a new request, which invalidates both the current bean (with the bound value), as well as the external page context...I thus lose all means to get a hold of sessionKey from either the bean or the page parameters...how can I resolve this? I am relatively new to both web programming and JSF, so pardon me if this has an obvious answer.
Either put the bean in the view scope, so that it lives long as you're interacting with the same view, or pass the request parameter by <f:param> to the subsequent requests.
<p:commandButton ...>
<f:param name="sessionKey" value="#{param.sessionKey}" />
</p:commandButton>
By the way, you'd rather have used <f:viewParam> to bind the request parameter to the bean directly.
<f:metadata>
<f:viewParam name="sessionKey" value="#{bean.sessionKey}" />
</f:metadata>
See also:
What can <f:metadata>, <f:viewParam> and <f:viewAction> be used for?
I have this working code in my webapp:
<h:button value="Edit user..." outcome="/public/user" >
<f:param name="userName" value="#{authBean.authUser}"/>
</h:button>
What it does:
It makes the button send a GET
It passes the specified parameter in the URL, making it bookmarkable.
What I need:
It should work like h:button above (send GET)
the button should look like other Primefaces buttons (eg. decorated with an image... etc).
This is the closest I could get:
<p:commandButton value="Edit user..." action="/public/user?faces-redirect=true" ajax="false" immediate="true" >
<f:param name="userName" value="#{authBean.authUser}"/>
</p:commandButton>
It sends a POST that gets redirected to the new URL with a GET. However the parameter is lost in the process.
Another idea:
<p:linkButton value="Edit user..." href="http://localhost:8080/contextpath/faces/public/user.xhtml">
<f:param name="userName" value="#{authBean.authUser}"/>
</p:linkButton>
The GET request is aborted (??? according to Firebug) and the current page is POSTed again.
What is the proper way of doing this?
UPDATE: this works (on an empty page, with no p:dataTable):
<p:linkButton value="Edit user..." href="http://localhost:8080/contextpath/faces/public/user.xhtml?userName=myusername">
but this does not:
<p:linkButton value="Edit user..." href="http://localhost:8080/contextpath/faces/public/user.xhtml?userName=myusername&secondParam=otherValue">
the latter results in:
500: javax.servlet.ServletException:
Error Parsing /sample0.xhtml: Error
Traced[line: 14] The reference to
entity "secondParam" must end with the
';' delimiter.
UPDATE2: the & should be escaped:
<p:linkButton value="Edit user..." href="http://localhost:8080/contextpath/faces/public/user.xhtml?userName=myusername&secondParam=otherValue">
and it looks good... but I still get the GET aborted and POST resent:
alt text http://img64.imageshack.us/img64/1017/primefaceslinkbutton.jpg
This is the full empty page I've been trying it with:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui">
<h:head />
<h:body>
<h:form>
<p:linkButton value="Click me" href="http://stackoverflow.com" />
</h:form>
</h:body>
</html>
Primefaces 2.1 release.
In PrimeFaces 2.2., we'll deprecate linkButton and introduce p:button. Issue ticket;
http://code.google.com/p/primefaces/issues/detail?id=1037
Use p:linkButton.
Update: as per your update with the code example, the URL should be specified in href attribute, not in the url attribtue. Also see the component's documentation which I linked here above.
The symptoms at least sounds like as if you're firing an asynchronous (Ajax) GET request, not a synchronous one. FireBug would then indeed give this kind of error when the request is fired on a different domain.
Don't you have some other Javascripts which are disturbing/colliding with the linkButton's default behaviour? The button is navigating by a simple onclick="window.location=newurl;".
Update 2: does it work if you test it standalone in a simple page? E.g.
<!DOCTYPE html>
<html xmlns="http://www.w3c.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.prime.com.tr/ui">
<h:head>
<title>Test</title>
</h:head>
<h:body>
<p:linkButton value="test" href="http://stackoverflow.com" />
</h:body>
</html>