JSplitPane用法详解

JSplitPane只能加两个组件在其当中，如果想要三个组件或者更多组件随意拉动的话，那么就要用多个JSplitPane嵌套，我这里是两个JSplitPane的嵌套。
下面为代码：

import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.border.EmptyBorder;
import javax.swing.JSplitPane;
import java.awt.Color;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import java.awt.Font;

public class JSplitPaneTest extends JFrame {

	private JPanel contentPane;

	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					JSplitPaneTest frame = new JSplitPaneTest();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	public JSplitPaneTest() {
		//将样式设为windows样式
		try {
			UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setSize(550, 450);
		setLocationRelativeTo(null);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		contentPane.setLayout(new BorderLayout(0, 0));
		setContentPane(contentPane);
		JPanel j1 = new JPanel();
		j1.setBackground(Color.PINK);
		JPanel j2 = new JPanel();
		j2.setBackground(Color.CYAN);
		JPanel j3 = new JPanel();
		j3.setBackground(Color.ORANGE);
		// JSplitPane.HORIZONTAL_SPLIT 为水平分割
		JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,false,j1,j2);
		j1.setLayout(new BorderLayout(0, 0));
		
		JLabel lblJ_2 = new JLabel("J1");
		lblJ_2.setFont(new Font("Arial Black", Font.PLAIN, 14));
		lblJ_2.setHorizontalAlignment(SwingConstants.CENTER);
		j1.add(lblJ_2, BorderLayout.CENTER);
		j2.setLayout(new BorderLayout(0, 0));
		
		JLabel lblJ_1 = new JLabel("J2");
		lblJ_1.setFont(new Font("Arial Black", Font.PLAIN, 14));
		lblJ_1.setHorizontalAlignment(SwingConstants.CENTER);
		j2.add(lblJ_1, BorderLayout.CENTER);
		splitPane.setOneTouchExpandable(true);
		//设置分隔条的位置为 JSplitPane 大小的一个百分比。
		splitPane.setDividerLocation(80);
		
		// JSplitPane.VERTICAL_SPLIT 为垂直分割
		JSplitPane splitPane2 = new JSplitPane(JSplitPane.VERTICAL_SPLIT,false,j3,splitPane);
		j3.setLayout(new BorderLayout(0, 0));
		
		JLabel lblJ = new JLabel("J3");
		lblJ.setFont(new Font("Arial Black", Font.PLAIN, 14));
		lblJ.setHorizontalAlignment(SwingConstants.CENTER);
		j3.add(lblJ, BorderLayout.CENTER);
		splitPane2.setDividerLocation(50);
		
		contentPane.add(splitPane2, BorderLayout.CENTER);
	}

}

还有很多属性这里不可能每个都讲一遍，建议翻阅帮助文档。