在jsf/primeface中有没有一种方法可以下载一个文件然后改变页面？

<h:head>
    <h:outputStylesheet library="primefaces" name="primefaces.css" />
    <h:outputScript library="primefaces" name="primefaces.js" />
</h:head>

<h:form>
    <p:commandButton value="下载文件" actionListener="#{bean.downloadFile}" ajax="false" />
    <p:fileDownload value="#{bean.file}" />
</h:form>

@ManagedBean
@RequestScoped
public class Bean {
    private StreamedContent file;

    public Bean() {
        // 初始化文件内容
        InputStream stream = FacesContext.getCurrentInstance().getExternalContext().getResourceAsStream("/path/to/file");
        file = new DefaultStreamedContent(stream, "application/octet-stream", "filename.ext");
    }

    public StreamedContent getFile() {
        return file;
    }

    public void downloadFile(ActionEvent event) {
        // 处理文件下载逻辑
    }
}