Shadow阴影效果

• 创建阴影Shadow shadow = new Shadow();

• 通过叠加两个相同图层，但下面一层设置阴影效果来实现外阴影

  Button button = new Button("button");  
  Label label = new Label("this is text.你好！");  
  Rectangle rectangle = new Rectangle(100, 100);  
  rectangle.setFill(Color.valueOf("#ff9999"));  
  Circle circle = new Circle(50);  
  circle.setFill(Color.valueOf("#996699"));  
  HBox box = new HBox(50);  
  box.setAlignment(Pos.CENTER);  
  box.getChildren().addAll(button, label, rectangle, circle);   
  box.getChildren().forEach(node -> {  
      node.setEffect(getEffect());  
  });  
  // 使用两个图层叠加产生阴影效果  
  Button button1 = new Button("button");  
  Label label1 = new Label("this is text.你好！");  
  Rectangle rectangle1 = new Rectangle(100, 100);  
  rectangle1.setFill(Color.valueOf("#ff9999"));  
  Circle circle1 = new Circle(50);  
  circle1.setFill(Color.valueOf("#996699"));  
  HBox box1 = new HBox(50);  
  box1.setAlignment(Pos.CENTER);  
  box1.getChildren().addAll(button1, label1, rectangle1, circle1);  
  AnchorPane root = new AnchorPane();  
  root.getChildren().addAll(box, box1);  
  AnchorPane.setTopAnchor(box, 110.0);  
  AnchorPane.setLeftAnchor(box, 110.0);  
  AnchorPane.setTopAnchor(box1, 100.0);  
  AnchorPane.setLeftAnchor(box1, 100.0);