如何将CSS样式表附加到FXML? [英] How to attach a CSS stylesheet to FXML?
问题描述
遵循Oracle教程 http://docs.oracle.com/javafx/2 /get_started/fxml_tutorial.htm ,我用片段创建FXML
Following Oracle tutorial http://docs.oracle.com/javafx/2/get_started/fxml_tutorial.htm, I create FXML with a fragment
<?xml version="1.0" encoding="UTF-8"?>
<?language javascript?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<GridPane alignment="CENTER" gridLinesVisible="true" hgap="10.0" vgap="10.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="fxmlexample.FXMLExampleController" styleClass="root" >
...other stuff...
<stylesheets>
<URL value="@Login.css" />
</stylesheets>
</GridPane>
NetBeans 8.0对 URL 红色进行着色并说:Class不存在:URL。
NetBeans 8.0 colors the URL red and says: "Class does not exist: URL".
编译运行时,JRE 1.8也会抛出异常:
When compiled and run, JRE 1.8 also throws an exception:
...
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:894)
at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:56)
at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:158)
at java.lang.Thread.run(Thread.java:745)
Caused by: javafx.fxml.LoadException: URL is not a valid type.
file:/C:/Users/User1/Documents/NetBeansProjects/FXMLExample/dist/run1970052180/FXMLExample.jar!/fxmlexample/fxml_example.fxml:46
如果我在 JavaFX Scene Builder 1.1中打开fxml_example.fxml文件,它还会抱怨缺少类型,其元素将不会显示:
If I open the fxml_example.fxml file in JavaFX Scene Builder 1.1", it also complains about missing types, elements of which will not be shown:
Missing types are: [URL]
每个人似乎都在使用< URL />
元素,为什么我不能?
Everyone seems to be using <URL/>
elements, why cannot I?
推荐答案
URL
是 java.net中的一个
包;你应该从FXML中导入 :
URL
is a class in the java.net
package; you should import it from the FXML:
<?import java.net.*?>
这篇关于如何将CSS样式表附加到FXML?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!