java - JSF 2.0 set locale throughout session from browser and programmatically -


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how detect locale application based on initial browser request , use throughout browsing session untill user changes locale , how force new locale through remaining session?

create session scoped managed bean follows:

@managedbean @sessionscoped public class localemanager {      private locale locale;      @postconstruct     public void init() {         locale = facescontext.getcurrentinstance().getexternalcontext().getrequestlocale();     }      public locale getlocale() {         return locale;     }      public string getlanguage() {         return locale.getlanguage();     }      public void setlanguage(string language) {         locale = new locale(language);         facescontext.getcurrentinstance().getviewroot().setlocale(locale);     }  }

to set current locale of views, bind <f:view> of master template.

<f:view locale="#{localemanager.locale}">

to change it, bind <h:selectonemenu> language options.

<h:form>     <h:selectonemenu value="#{localemanager.language}" onchange="submit()">         <f:selectitem itemvalue="en" itemlabel="english" />         <f:selectitem itemvalue="nl" itemlabel="nederlands" />         <f:selectitem itemvalue="es" itemlabel="español" />     </h:selectonemenu> </h:form>

to improve seo of internationalized pages (otherwise marked duplicate content), bind language <html> well.

<html lang="#{localemanager.language}">

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