如何查看 Wicket 应用程序的堆栈跟踪？

Question

我是 Wicket 新手，正在处理现有项目。如何在 UI 上查看来自 Wicket 的堆栈跟踪？目前我看到以下内容：

内部错误
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我在 log4j.xml 中设置了以下内容，但在日志中也没有看到任何堆栈跟踪：

<logger name="org.apache.wicket">
    <level value="DEBUG"/>
</logger>

Answer 1

public class MyApplication extends WebApplication {
    @Override
    protected void init() {
        /* ... */

        // Tells wicket to use a helpful 'debug' exception page with a snapshot of the 
        // component model, and the exception stack trace.
        // Other settings are available to show pages that say there has been an internal error 
        // (a production-friendly page)
        // In addition, more advanced usage allows you to override this behavior completely.

        getSettings().setUnexpectedExceptionDisplay(ApplicationSettings.SHOW_EXCEPTION_PAGE);
    }
}

Answer 2

<context-param>
 <param-name>configuration</param-name>
 <param-value>development</param-value>
 </context-param>

将 web.xml 更新为开发而不是部署

Answer 3

此外，调试输出的详细信息由 wicket 的“配置”运行时决定，请参阅 http://clipmarks.com/clipmark/B00CE497-A646-4CB6-B85D-F68332903C5A/