可以在JSF 2配置文件中将Flash.keepMessage设置为true吗? [英] set Flash.keepMessage to true in JSF 2 configuration file is possible?

问题描述

此行:

FacesContext.getCurrentInstance().getExternalContext().getFlash().setKeepMessages(true);

可以在任何配置文件中通过其他代码更改吗?每当我需要从该行的代码重定向时，我都希望避免键入此行:

Can be changed by another code in any configuration files? I want to avoid typing this line whenever I need to redirect from code whit this line:

     FacesContext.getCurrentInstance().getExternalContext().redirect("errorApp");

致谢.

推荐答案

没有配置设置可以更改保留消息"功能.

There is no configuration setting to change the "keep messages" feature.

只需创建一个实用程序方法即可通过单个方法调用替换重复的代码.例如

Just create an utility method which replaces the repeated code by a single method call. E.g.

public static void addGlobalInfoFlashMessage(String message) {
    FacesContext context = FacesContext.getCurrentInstance();
    context.getExternalContext().getFlash().setKeepMessages(true);
    context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, message, null));
}

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