per il nome non è stato definito alcun tag: viewAction

Question

Ho appena incorporato JSF 2.2.2 nel mio progetto esistente e desidero utilizzare f:viewAction ma sto ricevendo il seguente errore.

<f:viewAction> Tag Library supports namespace: http://java.sun.com/jsf/core, \ 
but no tag was defined for name: viewAction 

Ecco il mio codice:

<f:metadata> 
    <f:viewAction action="#{testBean.doIT}"/> 
</f:metadata> 

Ecco il mio controller:

@Named("testBean") 
@Scope(ScopeType.VIEW) 
public class TestBeanimplements Serializable { 
public void doIT(){ 
    System.out.println("Test Working !!!!!!!!"); 
    } 
} 

Ecco la mia configurazione di Maven per JSF:

<dependency> 
    <groupId>com.sun.faces</groupId> 
    <artifactId>jsf-api</artifactId> 
    <version>2.2.2</version> 
    <scope>provided</scope> 
</dependency> 
<dependency> 
    <groupId>com.sun.faces</groupId> 
    <artifactId>jsf-impl</artifactId> 
    <version>2.2.2</version> 
    <scope>provided</scope> 
</dependency> 
<dependency> 
    <groupId>javax.servlet</groupId> 
    <artifactId>javax.servlet-api</artifactId> 
    <version>3.0.1</version> 
    <scope>provided</scope> 
</dependency> 
<dependency> 
    <groupId>javax.servlet.jsp</groupId> 
    <artifactId>javax.servlet.jsp-api</artifactId> 
    <version>2.2.1</version> 
    <scope>provided</scope> 
</dependency> 
<dependency> 
    <groupId>javax.el</groupId> 
    <artifactId>javax.el-api</artifactId> 
    <version>2.2.1</version> 
    <scope>provided</scope> 
</dependency> 
<dependency> 
    <groupId>javax.servlet.jsp.jstl</groupId> 
    <artifactId>jstl-api</artifactId> 
    <version>1.2</version> 
    <scope>provided</scope> 
</dependency> 

Qualcuno potrebbe spiegare per me perché sto ottenendo questo errore?

Answer 1

è necessario utilizzare il nuovo spazio dei nomi: (?? GlassFish Jboss) xmlns:f="http://xmlns.jcp.org/jsf/core"