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Solved
Change a locale dynamically
Posted on 2014-01-03
I'm trying to change the locale of my application , but nothing happens . it always stays at a default definition. I'm using JSF and Bean Validation and MessagesProperties of BeanValidation I know that does't need any configuration at faces-config.xml
My faces config:
I've put at root view:
<f:view contentType="text/html; charset=UTF-8" encoding="UTF-8" locale="#{usuarioMB.locale
@Named
@SessionScoped
public class UsuarioMB implements Serializable {
	private static final long serialVersionUID = 1L;
	private String userCSS = "estilo.css";
	private List<String> cssDisponivel;
	private String tema;
	private String linguaEscolhida="pt" ;
	private Locale locale;
	private int tabAtiva;
	public void inicializar() {
		cssDisponivel = new ArrayList<String>();
		cssDisponivel.add("estilo.css");
		cssDisponivel.add("estilo2.css");
	}
	public void alterarTema() {
		System.out.println("alterado para: " + tema);
	}
	public String alterarEstilo() {
		return null;
	}
	public String alterarIdioma() {
		locale = new Locale(linguaEscolhida);
		FacesContext instance = FacesContext.getCurrentInstance();
		instance.getViewRoot().setLocale(locale);
		return null;
	}
	public List<String> getCssDisponivel() {
		return cssDisponivel;
	}
	public void setCssDisponivel(List<String> cssDisponivel) {
		this.cssDisponivel = cssDisponivel;
	}
	public String getUserCSS() {
		return userCSS;
	}
	public void setUserCSS(String userCSS) {
		this.userCSS = userCSS;
	}
	public String getTema() {
		if (tema == null) {
			tema = "bluesky";
		}
		return tema;
	}
	public void setTema(String tema) {
		this.tema = tema;
	}
	public String getLinguaEscolhida() {
		return linguaEscolhida;
	}
	public void setLinguaEscolhida(String linguaEscolhida) {
		this.linguaEscolhida = linguaEscolhida;
	}
	public Locale getLocale() {
		if (locale == null) {
			locale = new Locale(linguaEscolhida);
		}
		return locale;
	}
	public int getTabAtiva() {
		return tabAtiva;
	}
	public void setTabAtiva(int tabAtiva) {
		this.tabAtiva = tabAtiva;
	}
	public void onTabChange(TabChangeEvent event) {
		TabView tabView = (TabView) event.getComponent();
		setTabAtiva(tabView.getActiveIndex());
	}
My faces config:
<message-bundle>br.com.confiabilidade.mensagens.Messages</message-bundle>
		<resource-bundle>
			<base-name>br.com.confiabilidade.mensagens.sistema</base-name>
			<var>mensagens</var>
		</resource-bundle>
		<locale-config>
			<default-locale>en</default-locale>
			<supported-locale>pt</supported-locale>
			<supported-locale>en</supported-locale>
		</locale-config>
	</application>
I've put at root view:
<f:view contentType="text/html; charset=UTF-8" encoding="UTF-8" locale="#{usuarioMB.locale
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16 Comments
How you are setting linguaEscolhida?
If you change
return linguaEscolhida; to
return "pt";
is it working?
If you change
return linguaEscolhida; to
return "pt";
is it working?
When i put
private String linguaEscolhida="en" ;
the locale change to english
and
when put
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "pt";
}
with the atribute above(private String linguaEscolhida="en" ;
Does't change. keep "en"
Looks like that my method its' not working.
private String linguaEscolhida="en" ;
the locale change to english
and
when put
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "pt";
}
with the atribute above(private String linguaEscolhida="en" ;
Does't change. keep "en"
Looks like that my method its' not working.
Whatever value you are setting in method, locale should work on that.
Is it working if you set
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "pt";
}
?
Is it working if you set
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "pt";
}
?
No . take a look:
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "en";
}
output on console:
public Locale getLocale() {
if (locale == null) {
locale = new Locale(linguaEscolhida);
System.out.println(locale.
}
return locale;
}
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
Here is the code that change the locale
private String linguaEscolhida = "pt";
or
private String linguaEscolhida = "en";
public void setLinguaEscolhida(String linguaEscolhida) {
this.linguaEscolhida = "en";
}
output on console:
public Locale getLocale() {
if (locale == null) {
locale = new Locale(linguaEscolhida);
System.out.println(locale.
}
return locale;
}
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
Here is the code that change the locale
private String linguaEscolhida = "pt";
or
private String linguaEscolhida = "en";
If you are not calling setLinguaEscolhida method then locale will not change.
I am not getting - how you want to set locale if you are not calling setLinguaEscolhida method?
I am not getting - how you want to set locale if you are not calling setLinguaEscolhida method?
In my view:
and when i click at commandbutton calls the metod:
public String alterarIdioma() {
locale = new Locale(linguaEscolhida);
FacesContext instance = FacesContext.getCurrentIns
instance.getViewRoot().set
System.out.println(locale.
return null;
}
That would must be working . Would't it?
<p:selectOneMenu value="#{usuarioMB.linguaEscolhida}"> <----HERE
<f:selectItem itemValue="pt"
itemLabel="#{mensagens.internacionalizacaoPT}" />
<f:selectItem itemValue="en"
itemLabel="#{mensagens.internacionalizacaoEN}" />
</p:selectOneMenu>
<p:commandButton action="#{usuarioMB.alterarIdioma}" update="@form"
value="#{mensagens.internacionalizacaoTrocar}"/>
and when i click at commandbutton calls the metod:
public String alterarIdioma() {
locale = new Locale(linguaEscolhida);
FacesContext instance = FacesContext.getCurrentIns
instance.getViewRoot().set
System.out.println(locale.
return null;
}
That would must be working . Would't it?
I put a sysout:
public Locale getLocale() {
if (locale == null) {
locale = new Locale(linguaEscolhida);
System.out.println(locale.
}
return locale;
}
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
public Locale getLocale() {
if (locale == null) {
locale = new Locale(linguaEscolhida);
System.out.println(locale.
}
return locale;
}
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
português --- português
i put a sysout at method and the result is equals:
public String alterarIdioma() {
locale = new Locale(linguaEscolhida);
FacesContext instance = FacesContext.getCurrentIns
instance.getViewRoot().set
System.out.println(locale.
return null;
}
Jan 08, 2014 9:06:37 AM org.apache.catalina.startu
Informações: Server startup in 16503 ms
português --- português
português --- português
português --- português
português --- português
português --- português
only change if i meke a alteration at :
private String linguaEscolhida = "em"
for example .
public String alterarIdioma() {
locale = new Locale(linguaEscolhida);
FacesContext instance = FacesContext.getCurrentIns
instance.getViewRoot().set
System.out.println(locale.
return null;
}
Jan 08, 2014 9:06:37 AM org.apache.catalina.startu
Informações: Server startup in 16503 ms
português --- português
português --- português
português --- português
português --- português
português --- português
only change if i meke a alteration at :
private String linguaEscolhida = "em"
for example .
When you select pt in dropdown, what value you get in alterarIdioma of linguaEscolhida?
ALso check you are importing correct package for Named and SessionScope annotation?
ALso check you are importing correct package for Named and SessionScope annotation?
i vrrifyed that the value of drop down its not been captured.
susout:
lingua----> portuguêsLocal ----->português --- português
when i have choosed English.
public String alterarIdioma() {
locale = new Locale(linguaEscolhida);
FacesContext instance = FacesContext.getCurrentInstance();
instance.getViewRoot().setLocale(locale);
System.out.println("lingua----> "+linguaEscolhida +"Local ----->"+locale.getDisplayName() +" --- "+ locale.getDisplayLanguage());
return null;
}
susout:
lingua----> portuguêsLocal ----->português --- português
when i have choosed English.
With sessionecope
import javax.enterprise.context.S
it Works . the locale change in sysout method alterarIdioma, but the labels does' t change.
very strange .
the faces-config :
<application>
<resource-bundle>
<base-name>br.com.confiabi
<var>msg</var>
</resource-bundle>
<locale-config>
<default-locale>pt_BR</def
<supported-locale>pt</supp
<supported-locale>en</supp
</locale-config>
</application>
<factory>
<exception-handler-factory
br.com.confiabilidade.util
</exception-handler-factor
</factory>
</faces-config>
se the link of my Developper enviorment:
http://snag.gy/XAYQ1.jpg
ps. i m using bean validation so ValidationMessages_xx.prop
import javax.enterprise.context.S
it Works . the locale change in sysout method alterarIdioma, but the labels does' t change.
very strange .
the faces-config :
<application>
<resource-bundle>
<base-name>br.com.confiabi
<var>msg</var>
</resource-bundle>
<locale-config>
<default-locale>pt_BR</def
<supported-locale>pt</supp
<supported-locale>en</supp
</locale-config>
</application>
<factory>
<exception-handler-factory
br.com.confiabilidade.util
</exception-handler-factor
</factory>
</faces-config>
se the link of my Developper enviorment:
http://snag.gy/XAYQ1.jpg
ps. i m using bean validation so ValidationMessages_xx.prop
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