#primefaces

If you are a Java web developer, at that point you are as of now mindful of the sheer measure of Java Frameworks that are out there. That is the reason I’ve made this rundown for you.

Before we discuss Java Frameworks, let’s clarify “what is a Framework?” A framework is a program that allows you to develop web applications. The framework or structure means that you can modify to effortlessly develop new applications for a particular piece of software.

There are so many excellent Java Frameworks to develop the web application, mobile applications, microservices, and REST APIs that run on the Java Virtual Machine.

Bean

RequestContext context = RequestContext.getCurrentInstance(); context.execute("PF('varDialog').show();”);

.xhtml

parsing value from beanA to beanB:

method 1

In spring xml flow declare:

<var name="beanA" class="com.package.beanA"/> <var name="beanB" class="com.package.beanB"/> <on-entry> <evaluate expression="beanA.start()"/> <evaluate expression="baenB.start(beanA.someValue)"/> </on-entry>

method 2

using FacesContext in JSF (only String):

in xml:

<var name="beanA" class="com.package.beanA"/> <var name="beanB" class="com.package.beanB"/>

<transition on="redirectToPage" to="Page"/>

</view-state>

<view-state id="Page" view="externalRedirect:/path/pathBeanB/?parseValue=“#{beanA.value}”/>

in .xhtml

<p:commandButton value="Next" action="redirectToPage/>

in beanB:

protected transient HttpServletRequest req = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

3 ways to do it:

Method 1: Javascript and ajax

<p:ajax oncomplete="window.location.replace(window.location.href);"/>

or use window.location.assign

Method 2: From backing bean

//referesh Page

FacesContext context = FacesContext.getCurrentInstance(); String viewId = context.getViewRoot().getViewId(); ViewHandler handler = context.getApplication().getViewHandler(); UIViewRoot root = handler.createView(context, viewId); root.setViewId(viewId); context.setViewRoot(root);

Method 3: update="@all"

Beim hochladen von Dokumenten wollte ich den Namen der Datei in der View darstellen. Mein Problem war, dass der Dateiname nicht richtig encodiert wurde.

Einsatz:

Primefaces

Multi-file upload

Wird im Bean das das File über den event parameter engegeben genommen, kann es  sein dass der Name nicht wie gewünscht encodiert ist.

Encodiert nicht wie gewünscht:

encodedFilename = new String(filename.getBytes("ISO-8859-1"), "UTF-8");

Richtige Lösung für mich: