如何在 ResourceStreamRequestHandler#configure(..) 中设置标头(迁移问题)

How to setHeader in ResourceStreamRequestHandler#configure(..) (migration issue)

我正在通过 1.5 将 wicket 1.4 迁移到 6。我遇到无法解决的问题。在 wicket 1.4 中我曾经有过(注意:是的,我确实有 detach

public class TempFileResourceRequestTarget extends ResourceStreamRequestTarget implements Serializable {
    @Override
    protected void configure(final RequestCycle requestCycle, final Response response, 
            final IResourceStream resourceStream) {
        super.configure(requestCycle, response, resourceStream);
        ((WebResponse)response).getHttpServletResponse().setHeader("Cache-Control","");
        ((WebResponse)response).getHttpServletResponse().setHeader("Pragma","");
}

在 wicket 1.5/6 中,我将其更改为:

public class TempFileResourceRequestTarget extends ResourceStreamRequestHandler implements Serializable {
    @Override
    protected void configure(ResourceStreamResource resource) {
        super.configure(resource);
        ((HttpServletResponse)resource).setHeader("Cache-Control","");
        ((HttpServletResponse)resource).setHeader("Pragma","");
    }
}

我很绝望,试图找到任何包含 setHeader() 的东西——我相信我在迁移指南或类似的东西中找到了它。无论如何,这是行不通的。我该如何设置?在渲染头?没有线索。提前致谢。

ResourceStreamResource 没有实现 HttpServletResponse。 您可以使用 ResourceStreamResource#setCacheDuration(Duration.NONE) 来禁用缓存。

它将为您执行以下操作:

 public void disableCaching() {
    this.setDateHeader("Date", Time.now());
    this.setDateHeader("Expires", Time.START_OF_UNIX_TIME);
    this.setHeader("Pragma", "no-cache");
    this.setHeader("Cache-Control", "no-cache, no-store");
 }

这就是你想要的吗?