Java编写的简单图书标准管理系统

下载后可任意编辑Java 编写的简单图书标准管理系统下载后可任意编辑Java 编写的简单图书管理系统主界面代码实现package Library;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;public class Login extends JFrame {下载后可任意编辑private static final long serialVersionUID = 1L;private JLabel jlUsername;private JLabel jlPwd;private JTextField txtUsername; //用户名private JTextField txtPassword; //密码private JButton jbOk;private JButton jbCancel;public JLabel getJlUsername() {if(jlUsername==null){jlUsername=new JLabel("账号");();(118, 40, 85, 30);}return jlUsername;}public JLabel getJlPwd() {if(jlPwd==null){jlPwd=new JLabel("密码");();(118, 100, 85, 30);}return jlPwd;}public JTextField getTxtUsername() {if(txtUsername==null){txtUsername=new JTextField(20);(180,40 , 200, 30);}return txtUsername;}public JTextField getTxtPassword() {if(txtPassword==null){txtPassword=new JPasswordField(20);下载后可任意编辑(180, 100, 200, 30);}return txtPassword;}public JButton getJbOk() {if(jbOk==null){jbOk=new JButton("登陆");(150, 180, 90, 30);//(this);}return jbOk;}public JButton getJbCancel() {if(jbCancel==null){jbCancel=new JButton("取消");(300, 180, 90, 30);}return jbCancel;}public Login(String title){super(title);//JFrame frame=new JFrame();Container cantainer=();();ImageIcon img = new ImageIcon("F:\\Java\\ 传 习 \\src\\Library\\ZF`XY`H48I_}U)C4~}M2~");//这是背景图片JLabel imgLabel = new JLabel(img);//将背景图放在标签里。().add(imgLabel, new Integer());//注意这里是关键，将背景标签添加到jfram的LayeredPane面板里。(0,0,(), ());//设置背景标签的位置(new BorderLayout());(null);(getJlUsername());(getTxtUsername());(getJlPwd());下载后可任意编辑(getTxtPassword());(getJbOk());(getJbCancel());(imgLabel,);((JPanel)cantainer).setOpaque(false); //注意这里，将内容面板设为透明。这样LayeredPane面板...