java - 使用特定于字段的反馈标签时如何避免多余的 Wicket 日志警告？

Question

我正在使用“FeedbackLabels”来显示特定于组件的验证消息，基于这篇博文中的想法和代码:User friendly form validation with Wicket .

问题是，使用此类 FeedbackLabels 验证消息的页面会用多余的警告淹没日志:

2012-05-04 10:43:32,824 ["http-bio-8080"-exec-6] WARN  org.apache.wicket.protocol.http.WebSession - Component-targetted feedback message was left unrendered. This could be because you are missing a FeedbackPanel on the page.  Message: [FeedbackMessage message = "Tilille on pakollinen tieto", reporter = toAccount, level = ERROR]
2012-05-04 10:43:32,824 ["http-bio-8080"-exec-6] WARN  org.apache.wicket.protocol.http.WebSession - Component-targetted feedback message was left unrendered. This could be because you are missing a FeedbackPanel on the page.  Message: [FeedbackMessage message = "Tililtä on pakollinen tieto", reporter = fromAccount, level = ERROR]
2012-05-04 10:43:32,824 ["http-bio-8080"-exec-6] WARN  org.apache.wicket.protocol.http.WebSession - Component-targetted feedback message was left unrendered. This could be because you are missing a FeedbackPanel on the page.  Message: [FeedbackMessage message = "Viitenro on pakollinen tieto", reporter = reference, level = ERROR]
2012-05-04 10:43:35,039 ["http-bio-8080"-exec-6] WARN  org.apache.wicket.protocol.http.WebSession - Component-targetted feedback message was left unrendered. This could be because you are missing a FeedbackPanel on the page.  Message: [FeedbackMessage message = "Tilille on pakollinen tieto", reporter = toAccount, level = ERROR]
[...]

Wicket 声称:

Component-targetted feedback message was left unrendered. This could be because you are missing a FeedbackPanel on the page.

事情是，正如您在屏幕截图中看到的那样，这些消息被呈现(在每个字段附带的 FeedbackLabels 中)，我做也有一个 FeedbackPanel页面(但它使用 ComponentFeedbackMessageFilter 过滤组件目标消息，因此它们不会显示两次)。

无论如何，这些日志消息显然没有用。 我怎样才能让 Wicket 闭嘴？ (无需诉诸蛮力方法，例如将日志记录级别更改为 FATAL。)是否应该在 Daan 的 FeedbackLabel 实现中修复某些内容(见下文)？

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附录:基本上FeedbackLabel(扩展Label)检查相关组件是否有反馈消息，如果有，则显示它。如果您不想从 article 加载代码，这里是相关部分:

// (Author of this code is Daan, StuQ.nl
// it's licenced under Apache 2.0 license.)
@Override
protected void onBeforeRender() {
    super.onBeforeRender();

    if(component.getFeedbackMessage()!=null) {
        if(this.text!=null) {
            setDefaultModel(this.text);
        } else {
            setDefaultModel(new Model(component.getFeedbackMessage().getMessage()));
        }

        this.add(new AttributeModifier("class", true, new Model("feedbackLabel " + component.getFeedbackMessage().getLevelAsString())));
    } else {
        setDefaultModel(new Model(""));
    }
}

Answer 1

FeedbackMessage 有一个 markRendered() 函数。我会为添加到标签的每条消息添加对此的调用。请参阅反馈面板的代码。