Vaadin 拒绝尚未发布的文件的已发布文件请求。尝试了所有选项,但没有';行不通
我正在尝试实现一个示例应用程序,其中所有javascript(JS)和CSS文件都使用许多png文件 我参考了许多文章,但他们帮不了我 对于所有png文件,我得到以下错误: 样本错误部分Vaadin 拒绝尚未发布的文件的已发布文件请求。尝试了所有选项,但没有';行不通,vaadin,vaadin8,Vaadin,Vaadin8,我正在尝试实现一个示例应用程序,其中所有javascript(JS)和CSS文件都使用许多png文件 我参考了许多文章,但他们帮不了我 对于所有png文件,我得到以下错误: 样本错误部分 Jan 29, 2019 3:25:22 PM com.vaadin.server.communication.PublishedFileHandler handleRequest WARNING: Rejecting published file request for file that has not b
Jan 29, 2019 3:25:22 PM com.vaadin.server.communication.PublishedFileHandler handleRequest
WARNING: Rejecting published file request for file that has not been published: css/images/chartIcon.png
Jan 29, 2019 3:25:22 PM com.vaadin.server.communication.PublishedFileHandler handleRequest
WARNING: Rejecting published file request for file that has not been published: css/images/sunburst.png
Jan 29, 2019 3:25:22 PM com.vaadin.server.communication.PublishedFileHandler handleRequest
WARNING: Rejecting published file request for file that has not been published: css/images/treemap.png
Jan 29, 2019 3:25:40 PM com.vaadin.server.communication.PublishedFileHandler handleRequest
WARNING: Rejecting published file request for file that has not been published: css/images/sprite.png
下面是我的文件夹结构
de.qsoft.manatee.web.vaadin.myapp
de.qsoft.manatee.web.vaadin.myapp.css --> Contains all CSS files
de.qsoft.manatee.web.vaadin.myapp.fileMenu --> Contains all CSS files
de.qsoft.manatee.web.vaadin.myapp.widgets --> Contains all CSS files
de.qsoft.manatee.web.vaadin.myapp.scripts --> contains all js files
de.qsoft.manatee.web.vaadin.myapp.widgets --> contains all js files
de.qsoft.manatee.web.vaadin.myapp.colorpicker --> contains all js files
SpreadJSWidget.Java
@JavaScript({
"scripts/jquery-1.11.1.min.js",
"scripts/jquery-ui-1.10.3.custom.min.js",
"spreadjs_connector.js",
"colorpicker/colorPicker.js",
"fileMenu/fileMenu.js",
"scripts/actionmanager.js",
"scripts/app.js",
"scripts/bootstrap.min.js",
"scripts/FileSaver.min.js",
"scripts/gc.spread.excelio.12.0.5.min.js",
"scripts/gc.spread.sheets.all.12.0.5.min.js",
"scripts/gc.spread.sheets.barcode.12.0.5.min.js",
"scripts/gc.spread.sheets.charts.12.0.5.min.js",
"scripts/gc.spread.sheets.pdf.12.0.5.min.js",
"scripts/gc.spread.sheets.print.12.0.5.min.js",
"scripts/gc.spread.sheets.shapes.12.0.5.min.js",
"scripts/license.js",
"scripts/resources.js",
"scripts/ribbon-data.js",
"scripts/ribbon.js",
"scripts/sample.js",
"scripts/spreadActions.js",
"scripts/util.js",
"widgets/addChartElement/chartAddChartElement.js",
"widgets/chartColorPicker/chart-colorPicker.js",
"widgets/chartLayoutPicker/chartLayoutPicker.js",
"widgets/richText/richTextEditor.js"
})
@StyleSheet({
"colorpicker/colorPicker.css",
"css/font-awesome/css/font-awesome.min.css",
"css/bootstrap-theme.min.css",
"css/bootstrap.min.css",
"css/borderpicker.css",
"css/colorpicker.css",
"css/excel2013.css",
"css/gc.spread.sheets.12.0.5.css",
"css/gc.spread.sheets.excel2013white.12.0.5.css",
"css/insp-slicer-format.css",
"css/insp-table-format.css",
"css/inspector.css",
"css/sample.css",
"css/shapes.css",
"fileMenu/fileMenu.css",
"widgets/addChartElement/chartAddChartElement.css",
"widgets/chartColorPicker/chart-colorPicker.css",
"widgets/chartLayoutPicker/chartLayoutPicker.css",
"widgets/richText/richTextWithRichEditor.css",
})
public class SpreadJSWidget extends AbstractJavaScriptExtension
{
/**
*
*/
private static final long serialVersionUID = -804316208810859887L;
public interface ValueChangeListener extends Serializable {
void valueChange();
}
ArrayList<ValueChangeListener> listeners = new ArrayList<ValueChangeListener>();
public void addValueChangeListener(ValueChangeListener listener) {
listeners.add(listener);
}
/**
*
*/
public SpreadJSWidget() {
// TODO hari: Auto-generated constructor stub
}
/*'***************************************************************************************
* Static/Inner class members
******************************************************************************************/
/*'***************************************************************************************
* Class members
******************************************************************************************/
public void setValue(String value) {
getState().value = value;
}
@Override
protected void extend(AbstractClientConnector target) {
// TODO hari: Not Yet Implemented
super.extend(target);
}
public String getValue() {
return getState().value;
}
@Override protected SpreadJSWidgetState getState() {
return (SpreadJSWidgetState) super.getState();
}
}
}
请让我知道我应该把所有的png文件放在哪里。每个css都将图像文件引用为
这里发生的事情是由安全功能引起的。由于在本例中,文件直接从类路径提供,因此Vaadin采取了一些预防措施,以防止意外地从类路径发布其他内容,例如
DatabaseConnection.java
,其中可能包含敏感密码
因此,只有使用@StyleSheet
、@JavaScript
或@HtmlImport
注释显式发布的文件才可用。由于没有相应的注释,例如css/images/AllShapes.png
,服务器将忽略这些请求
我知道在这种情况下有两种可能的解决办法,但都不是很好:
VAADIN/css/images
中,并更新css以使用适当数量的。/
段来取消URL的/APP/PUBLISHED/
部分。因此,CSS中的URL将类似于。/../VAADIN/CSS/images.AllShapes.png
VAADIN/
中。这样,您就不需要更改引用图像的URL,而是需要手动加载CSS,而不是依赖方便的@StyleSheet
注释。在这种情况下,我建议使用类似于ui.getPage().getStyles().add(newthemeresource(“../../css/name.css”)代码>。。/../
部分用于取消将自动用于主题资源的主题/mytheme/
。您可以在attach()
方法中执行此操作(只需记住还要调用super.attach()
)。您最好还添加一些逻辑,如果以前没有为同一UI实例添加依赖项,则只添加依赖项
LegacyCommunicationManager.registerDependency
方法也注册图像,以便直接从类路径获得。您可以使用vaadinSession.getCommunicationManager()
找到LegacyCommunicationManager的实例作为一个不相关的注释,我建议将不同的脚本和CSS文件合并到每种类型的单个文件中。原因是通过HTTP加载大量小文件会导致一些性能开销,通过将这些文件捆绑在一起可以避免这些开销。非常感谢,解决方法2。他帮了我很多忙。
@Override
protected void init(VaadinRequest vaadinRequest) {
SpreadWidget widget = new SpreadWidget();
setContent(widget);
}
@WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
@VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
public static class MyUIServlet extends VaadinServlet {
}