java的GUI基本组件的简单应用

学了java的GUI之后，做的一个小程序。还有很多没有完善的地方但是基本的知识都在了。

效果图：

点击左侧的树节点会相应的切换

代码：

package GUI;

/**
-------逆水行舟，不进则退。-------
因为在这里不好把程序分成各个小的模块，那样的话会上传很多的文件，所以本人在这里把所有的组件写在了一起，如果想分开的话也很简单，稍微有点基础就可以了。
*/
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.DefaultMutableTreeNode;


import java.awt.*;
//import java.awt.event.*; //添加退出事件时候使用


class LSJFream extends JFrame {
private static final long serialVersionUID = 1L;
// 菜单栏的信息
private JMenuBar bar = new JMenuBar();
private JMenuItem menu1 = new JMenu("管理员信息");
private JMenuItem menu2 = new JMenu("雇员表管理");
private JMenuItem menu3 = new JMenu("雇员信息查询");
private JMenuItem menu4 = new JMenu("部门表信息管理");
private JMenuItem menu5 = new JMenu("部门信息查询");
private JMenuItem menu6 = new JMenu("关于");
private JMenuItem menu7 = new JMenu("退出");
// 卡是布局的panel
CardLayout cardLayout1 = new CardLayout();
JPanel mainPanel = new JPanel();
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JPanel panel3 = new JPanel();
JPanel panel4 = new JPanel();
JPanel panel5 = new JPanel();
JPanel panel6 = new JPanel();
JPanel panel7 = new JPanel();
JPanel panel8 = new JPanel();
JPanel panel9 = new JPanel();
JPanel panel10 = new JPanel();
JPanel panel11 = new JPanel();
JPanel panel12 = new JPanel();
JPanel panel13 = new JPanel();
JPanel panel14 = new JPanel();
JPanel panel15 = new JPanel();


// 对默认panel用JSplitPane分割
private JSplitPane jsp = new JSplitPane();


// 左侧的树形结构信息
private JTree jtree = null;
private DefaultMutableTreeNode root;


public LSJFream() {
};


public LSJFream(String title) {
this.setTitle(title);
this.setBounds(500, 200, 600, 450);


// 左侧的树形结构
jtree = new JTree();
root = new DefaultMutableTreeNode("资产关系系统");
this.creatTree(root); // 创建树
jtree = new JTree(root);
// ----------------------------- Tree事件 （点击切换画布）------------------------
jtree.addTreeSelectionListener(new TreeSelectionListener() {
@Override
public void valueChanged(TreeSelectionEvent arg0) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) jtree
.getLastSelectedPathComponent();
if (node == null) {
return;
} else if ("退出本系统".equals(node.toString())) {
int n = JOptionPane.showConfirmDialog(null, "确定退出？", "提示",
JOptionPane.YES_NO_OPTION);// i=0/1
if (n == 0) {
System.exit(0);
}
if (n == 1) {


}
} else if ("登陆".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel1");
} else if ("管理员密码修改".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel2");
} else if ("增加雇员".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel3");
} else if ("修改雇员信息".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel4");
} else if ("删除雇员".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel5");
} else if ("按雇员编号查询".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel6");
} else if ("按雇员字段模糊查询".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel7");
} else if ("显示所有雇员".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel8");
} else if ("增加部门".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel9");
} else if ("修改部门信息".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel10");
} else if ("删除部门".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel11");
} else if ("按部门编号查询".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel12");
} else if ("按部门字段模糊查询".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel13");
} else if ("显示所有部门".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel14");
} else if ("关于本系统".equals(node.toString())) {
cardLayout1.show(mainPanel, "panel15");
} else {
return;
}
}
});


JScrollPane jscp = new JScrollPane(jtree);// 添加滚动
jtree.setBackground(Color.CYAN);


// 对中间panel的分割
jsp.setDividerSize(1);
jsp.setOneTouchExpandable(false); // 设置分隔条的折叠按钮
jsp.setDividerLocation(160);
jsp.setContinuousLayout(true);
jsp.setLeftComponent(jscp);
this.getContentPane().add(jsp);


// 右侧的主界面
this.addCardPanel();
mainPanel.setBackground(Color.CYAN);
jsp.setRightComponent(mainPanel);


// 添加菜单栏
this.setJMenuBar(bar);
this.addMenu();


this.setVisible(true);


 
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设定窗体关闭后自动退出进程
// 添加退出事件
// this.addWindowListener(new WindowAdapter() {
// @Override
// public void windowClosing(WindowEvent e) {
// super.windowClosing(e);
// System.exit(0);
// }
//
// });
}


// 右侧添加卡片
private void addCardPanel() {
mainPanel.setLayout(cardLayout1);
mainPanel.setBackground(Color.CYAN);
// 实例化卡片内容
panel1(panel1);
panel2(panel2);
panel3(panel3);
panel4(panel4);
panel5(panel5);
panel6(panel6);
panel7(panel7);
panel8(panel8);
panel9(panel9);
panel10(panel10);
panel11(panel11);
panel12(panel12);
panel13(panel13);
panel14(panel14);
panel15(panel15);
// 卡式布局
mainPanel.add(panel1, "panel1"); //添加卡片   设置标签
mainPanel.add(panel2, "panel2");
mainPanel.add(panel3, "panel3");
mainPanel.add(panel4, "panel4");
mainPanel.add(panel5, "panel5");
mainPanel.add(panel6, "panel6");
mainPanel.add(panel7, "panel7");
mainPanel.add(panel8, "panel8");
mainPanel.add(panel9, "panel9");
mainPanel.add(panel10, "panel10");
mainPanel.add(panel11, "panel11");
mainPanel.add(panel12, "panel12");
mainPanel.add(panel13, "panel13");
mainPanel.add(panel14, "panel14");
mainPanel.add(panel15, "panel15");
}


// 添加菜单事件
private void addMenu() {
JMenuItem jm1_1 = new JMenuItem("登录");
JMenuItem jm1_2 = new JMenuItem("管理员密码修改");
JMenuItem jm2_1 = new JMenuItem("增加雇员");
JMenuItem jm2_2 = new JMenuItem("修改雇员信息");
JMenuItem jm2_3 = new JMenuItem("删除雇员");
JMenuItem jm3_1 = new JMenuItem("按雇员编号查询");
JMenuItem jm3_2 = new JMenuItem("按雇员字段模糊查询");
JMenuItem jm3_3 = new JMenuItem("显示所有雇员");
JMenuItem jm4_1 = new JMenuItem("增加部门");
JMenuItem jm4_2 = new JMenuItem("修改部门信息");
JMenuItem jm4_3 = new JMenuItem("删除部门");
JMenuItem jm5_1 = new JMenuItem("按部门编号查询");
JMenuItem jm5_2 = new JMenuItem("按部门字段模糊查询");
JMenuItem jm5_3 = new JMenuItem("显示所有部门");
JMenuItem jm6 = new JMenuItem("关于本系统");
JMenuItem jm7 = new JMenuItem("退出本系统");
// 上面的菜单按钮
menu1.add(jm1_1);
menu1.add(jm1_2);
menu2.add(jm2_1);
menu2.add(jm2_2);
menu2.add(jm2_3);
menu3.add(jm3_1);
menu3.add(jm3_2);
menu3.add(jm3_3);
menu4.add(jm4_1);
menu4.add(jm4_2);
menu4.add(jm4_3);
menu5.add(jm5_1);
menu5.add(jm5_2);
menu5.add(jm5_3);
menu6.add(jm6);
menu7.add(jm7);
bar.add(menu1);
bar.add(menu2);
bar.add(menu3);
bar.add(menu4);
bar.add(menu5);
bar.add(menu6);
bar.add(menu7);
}


// 创建左侧的树形结构
private void creatTree(DefaultMutableTreeNode root) {
DefaultMutableTreeNode bigNode = null;
DefaultMutableTreeNode node2 = null;
bigNode = new DefaultMutableTreeNode("管理员信息");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("登陆"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("管理员密码修改"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("雇员表信息管理");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("增加雇员"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("修改雇员信息"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("删除雇员"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("雇员信息查询");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("按雇员编号查询"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("按雇员字段模糊查询"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("显示所有雇员"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("部门表信息管理");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("增加部门"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("修改部门信息"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("删除部门"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("部门信息查询");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("按部门编号查询"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("按部门字段模糊查询"); // 子tree
bigNode.add(node2);
node2 = new DefaultMutableTreeNode("显示所有部门"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("关于");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("关于本系统"); // 子tree
bigNode.add(node2);
bigNode = new DefaultMutableTreeNode("退出");// 主tree
root.add(bigNode);
node2 = new DefaultMutableTreeNode("退出本系统"); // 子tree
bigNode.add(node2); // 子tree


}


// panel1的具体实现(登陆界面)
private void panel1(JPanel panel1) {
// 设计各个panel的具体组件
panel1.setBackground(Color.CYAN);
panel1.setLayout(null);
JLabel titleLab = new JLabel("雇员信息管理系统", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel1.add(titleLab);
JLabel userNameLab = new JLabel("用户名：");
userNameLab.setFont(new Font("华文行楷", Font.PLAIN, 20));
userNameLab.setBounds(20, 150, 400, 20);
panel1.add(userNameLab);
JTextField userNameFile = new JTextField(25);
userNameFile.setBounds(100, 150, 300, 20);
userNameFile.setFont(new Font("华文行楷", Font.PLAIN, 20));
panel1.add(userNameFile);
JLabel userPassLab = new JLabel("密   码：");
userPassLab.setFont(new Font("华文行楷", Font.PLAIN, 20));
userPassLab.setBounds(20, 200, 400, 20);
panel1.add(userPassLab);
JTextField userPassFile = new JPasswordField(25);
userPassFile.setBounds(100, 200, 300, 20);
userPassFile.setFont(new Font("华文行楷", Font.PLAIN, 20));
panel1.add(userPassFile);
JButton dengluBut = new JButton("登陆");
dengluBut.setFont(new Font("华文行楷", Font.PLAIN, 20));
dengluBut.setBounds(100, 280, 100, 30);
panel1.add(dengluBut);
JButton quxiaoBut = new JButton("取消");
quxiaoBut.setFont(new Font("华文行楷", Font.PLAIN, 20));
quxiaoBut.setBounds(260, 280, 100, 30);
panel1.add(quxiaoBut);
}


// panel2的具体实现（管理员修改密码）
private void panel2(JPanel panel2) {
panel2.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("管理员密码修改", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel2.add(titleLab);
// JTextField userNameFile = new JTextField();
// userNameFile.setBounds(100, 100, 300, 20);
// userNameFile.setFont(new Font("华文行楷", Font.PLAIN, 20));
// panel2.add(userNameFile);
// JLabel userPassLab = new JLabel("密   码：");
// userPassLab.setFont(new Font("华文行楷", Font.PLAIN, 20));
// userPassLab.setBounds(20, 150, 400, 20);
}


// ---------其他卡片的实现----------------------------------------------
private void panel3(JPanel panel3) {
panel3.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("增加雇员", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel3.add(titleLab);
}


private void panel4(JPanel panel4) {
panel4.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("修改雇员信息", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel4.add(titleLab);
}


private void panel5(JPanel panel5) {
panel5.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("删除雇员", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel5.add(titleLab);
}


private void panel6(JPanel panel6) {
panel6.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("按雇员编号排序", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel6.add(titleLab);
}


private void panel7(JPanel panel7) {
panel7.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("按雇员字段模糊查询", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel7.add(titleLab);
}


private void panel8(JPanel panel8) {
panel8.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("显示所有雇员", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel8.add(titleLab);
}


private void panel9(JPanel panel9) {
panel9.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("增加部门", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel9.add(titleLab);
}


private void panel10(JPanel panel10) {
panel10.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("修改部门信息", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel10.add(titleLab);
}


private void panel11(JPanel panel11) {
panel11.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("删除部门", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel11.add(titleLab);
}


private void panel12(JPanel panel12) {
panel12.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("按部门编号查询", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel12.add(titleLab);
}


private void panel13(JPanel panel13) {
panel13.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("按部门字段模糊查询", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel13.add(titleLab);
}


private void panel14(JPanel panel14) {
panel14.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("显示所有部门", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel14.add(titleLab);
}


private void panel15(JPanel panel15) {
panel15.setBackground(Color.CYAN);
JLabel titleLab = new JLabel("关于本系统", JLabel.CENTER);
titleLab.setForeground(Color.WHITE);
titleLab.setFont(new Font("华文行楷", Font.BOLD, 40));
titleLab.setBounds(20, 30, 400, 40);
panel15.add(titleLab);
}
}


public class LS_JFream {
public static void main(String[] args) {
new LSJFream("李四资产管理系统");
}
}