未捕獲的類型錯誤：對象＃<Object>沒有方法上primefaces.js

Question

我有一個鏈接到在XHTML切換從郎1至郎2 '代替'：

<p:commandLink value="#{msgs['home.french']}" id="frenchLink" 
    rendered="#{mainBean.changeLanguage.getLanguage() ne 'fr'}"  
    actionListener="#{mainBean.refreshPage}" ajax="false"> 
    <f:param name="selectedLanguage" value="fr"/> 
</p:commandLink> 

<p:commandLink value="#{msgs['home.english']}" id="englishLink" r 
    endered="#{mainBean.changeLanguage.getLanguage() ne 'en'}" actionListener="#{mainBean.refreshPage}" ajax="false"> 
    <f:param name="selectedLanguage" value="en"/> 
</p:commandLink> 

和mainBean，

public void refreshPage(ActionEvent event){ 
     FacesContext context = FacesContext.getCurrentInstance(); 
     String language = context.getExternalContext().getRequestParameterMap().get("selectedLanguage"); 
     changeLanguage = new ChangeLanguage(); 
     ChangeLanguage.setLanguage(language); 
     String viewId = context.getViewRoot().getViewId(); 
     ViewHandler handler = context.getApplication().getViewHandler(); 
     UIViewRoot root = handler.createView(context, viewId); 
     root.setViewId(viewId); 
     context.setViewRoot(root); 
     context.renderResponse(); 
} 

始終得到遺漏的類型錯誤：對象＃有沒有方法對primefaces.js

「取代」這些問題僅彈出當我切換到法國和日e頁面有selectOneMenu，對話框。

對此讚賞的任何指針。

應用程序使用JSF 2.0，Primefaces 3.5

Answer 1

定義默認語言侑faces-config.xml中

<application> 
     <locale-config> 
      <default-locale>en</default-locale> 
     </locale-config> 
</application> 

建議您的bean是@SessionScoped，則可以考慮創建一個bean只是爲了控制位置的系統。

在你的Bean中創建這個屬性。

private static Map<String,Locale> countries; 
    static{ 
     countries = new HashMap<String,Locale>(); 
     countries.put("fr", Locale.FRANCE); 
     countries.put("en", Locale.ENGLISH); 
    } 

添加方法來更改語言。

public void changeLanguage(){ 
     FacesContext context = FacesContext.getCurrentInstance(); 
     String language = context.getExternalContext().getRequestParameterMap().get("selectedLanguage"); 
     context.getViewRoot().setLocale(countries.get(language)); 
} 

在您看來（XHTML）：

<p:commandLink value="#{msgs['home.french']}" id="frenchLink" 
    rendered="#{mainBean.changeLanguage.getLanguage() ne 'fr'}"  
    actionListener="#{mainBean.changeLanguage}" ajax="false" 
    oncomplete="javascript:location.reload(true)"> 
    <f:param name="selectedLanguage" value="fr"/> 
</p:commandLink> 

<p:commandLink value="#{msgs['home.english']}" id="englishLink" 
    rendered="#{mainBean.changeLanguage.getLanguage() ne 'en'}" actionListener="#{mainBean.changeLanguage}" ajax="false" 
    oncomplete="javascript:location.reload(true)"> 
    <f:param name="selectedLanguage" value="en"/> 
</p:commandLink>