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我用 Netbeans 生成了 CRUD 软件。JSF 页面位于 JSF 文件夹中。该文件夹中的一切正常。我只是将那些 jsf 文件复制到 Protected-folder 下，完全相同的文件。消息在那里，但它们从未出现在屏幕上。

我做了一些系统输出：

public static void addSuccessMessage(String msg) {
        System.out.println("********************JsfUtil******************************");
        System.out.println("--------------addSuccessMessage-------------------");
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, msg, msg);
        System.out.println("facesMsg----------------->" +facesMsg);
        System.out.println("facesMsg----------------->" +facesMsg.getDetail());
        FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg);
        System.out.println("FacesContext.getCurrentInstance()" +FacesContext.getCurrentInstance().toString());

    }

public String create() {
        try {
            getFacade().create(current);


    JsfUtil.addSuccessMessage(ResourceBundle.getBundle("resources/Bundle").getString("GiftCreated"));
            return prepareCreate();
        } catch (Exception e) {
            JsfUtil.addErrorMessage(e, ResourceBundle.getBundle("resources/Bundle").getString("PersistenceErrorOccured"));
            return null;
        }

在服务器日志中：

INFO: ********************JsfUtil******************************
INFO: --------------addSuccessMessage-------------------
INFO: facesMsg----------------->javax.faces.application.FacesMessage@141541
INFO: facesMsg----------------->User was successfully created.
INFO: FacesContext.getCurrentInstance()com.sun.faces.context.FacesContextImpl@7f9d04

但在网页中，什么都没有只是文件夹不同。

编辑：我只是发现它们处于不同的上下文中。我记录了 id，从文件夹 Jsf（什么不受保护）中尝试了 xhtml-file，然后从文件夹 Protected 中尝试了 xhtml-file，并且有两个不同的上下文，它是否正确，为什么会这样？这让我发疯了，啊。

INFO: _______________________doFilter()_________________________________
INFO: ********************JsfUtil******************************
INFO: --------------addSuccessMessage-------------------
INFO: facesMsg----------------->javax.faces.application.FacesMessage@173ae75
INFO: facesMsg----------------->User was successfully created.
**INFO: FacesContext.getCurrentInstance()com.sun.faces.context.FacesContextImpl@1c28e53**
INFO: .......................User was successfully created.



INFO: _______________________doFilter()_________________________________
INFO: ********************JsfUtil******************************
INFO: --------------addSuccessMessage-------------------
INFO: facesMsg----------------->javax.faces.application.FacesMessage@127706d
INFO: facesMsg----------------->User was successfully created.
**INFO: FacesContext.getCurrentInstance()com.sun.faces.context.FacesContextImpl@4632db**
INFO: .......................User was successfully created.

谢谢和抱歉！萨米人

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