Java利用弹簧控制组件大小
package com.han;import java.awt.Container;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.Spring;import javax.swing.SpringLayout;import javax.swing.SpringLayout.Constraints; // Constraints为SpringLayout的内部类/** * 利用弹簧控制组件大小 * @author HAN * */public class SpringLayout_2 extends JFrame {/** * */private static final long serialVersionUID = -5240773865528158419L;public SpringLayout_2() {// TODO Auto-generated constructor stubContainer container = getContentPane();SpringLayout springLayout = new SpringLayout();container.setLayout(springLayout);JButton buttonL = new JButton("buttonL");JButton buttonR = new JButton("buttonR");container.add(buttonL);container.add(buttonR);Spring vST = Spring.constant(5);Spring hSP = Spring.constant(10, 60, 100);springLayout.putConstraint(SpringLayout.NORTH, buttonR, 0, SpringLayout.NORTH, buttonL);springLayout.putConstraint(SpringLayout.NORTH, buttonL, vST, SpringLayout.NORTH, container);springLayout.putConstraint(SpringLayout.WEST, buttonL, hSP, SpringLayout.WEST, container);springLayout.putConstraint(SpringLayout.EAST, container, hSP, SpringLayout.EAST, buttonR);springLayout.putConstraint(SpringLayout.WEST, buttonR, Spring.scale(hSP, 2), SpringLayout.EAST, buttonL);Spring heightST = Spring.constant(60);Spring widthSP = Spring.constant(60, 300, 600); Constraints buttonLConstraints = springLayout.getConstraints(buttonL);buttonLConstraints.setHeight(heightST);buttonLConstraints.setWidth(widthSP);Constraints buttonRConstraints = springLayout.getConstraints(buttonR);buttonRConstraints.setHeight(heightST);buttonRConstraints.setWidth(widthSP);}/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubSpringLayout_2 frame = new SpringLayout_2();frame.setTitle("利用弹簧控制组件大小");frame.setVisible(true);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setBounds(100, 100, 600, 300);}}