loginframe.java

JAVA图书管理系统有很多代码这只是很小的一部分

/*
 * LoginFrame.java
 *
 * Created on 2004年1月4日, 下午6:05
 */

package library;
import java.sql.*;
import javax.swing.JOptionPane;
/**
 *
 * @author  Administrator
 */
public class LoginFrame extends javax.swing.JFrame {
    
    /** Creates new form LoginFrame */
    public LoginFrame() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        nameTextField = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jLabel4 = new javax.swing.JLabel();
        jComboBox1 = new javax.swing.JComboBox();
        password1Field = new javax.swing.JPasswordField();
        password2Field = new javax.swing.JPasswordField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("\u6ce8\u518c\u7cfb\u7edf");
        jLabel1.setFont(new java.awt.Font("宋体", 1, 12));
        jLabel1.setText("\u7528\u6237\u540d\uff1a");

        jLabel2.setFont(new java.awt.Font("宋体", 1, 12));
        jLabel2.setText("\u5bc6\u7801\uff1a");

        jLabel3.setFont(new java.awt.Font("宋体", 1, 12));
        jLabel3.setText("\u786e\u8ba4\u5bc6\u7801\uff1a");

        jButton1.setFont(new java.awt.Font("宋体", 1, 12));
        jButton1.setText("\u6ce8\u518c");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setFont(new java.awt.Font("宋体", 1, 12));
        jButton2.setText("\u53d6\u6d88");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jLabel4.setFont(new java.awt.Font("宋体", 1, 12));
        jLabel4.setText("\u7528\u6237\u7c7b\u578b\uff1a");

        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "user", "admin" }));

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(55, 55, 55)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jLabel4)
                    .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                        .add(layout.createSequentialGroup()
                            .add(jButton1)
                            .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 117, Short.MAX_VALUE)
                            .add(jButton2)
                            .add(110, 110, 110))
                        .add(layout.createSequentialGroup()
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                                .add(jLabel3)
                                .add(jLabel1)
                                .add(jLabel2))
                            .add(21, 21, 21)
                            .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                                .add(password2Field, 0, 0, Short.MAX_VALUE)
                                .add(password1Field)
                                .add(nameTextField, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 100, Short.MAX_VALUE)
                                .add(layout.createSequentialGroup()
                                    .add(10, 10, 10)
                                    .add(jComboBox1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
                            .addContainerGap(159, Short.MAX_VALUE)))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(20, 20, 20)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel1)
                    .add(nameTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(44, 44, 44)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(jLabel2)
                    .add(password1Field, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(42, 42, 42)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(password2Field, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(16, 16, 16)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel4)
                    .add(jComboBox1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(18, 18, 18)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jButton1)
                    .add(jButton2))
                .addContainerGap(51, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
// TODO 将在此处添加您的处理代码：
        nameTextField.setText("");
        password1Field.setText("");
        password2Field.setText("");
         this.hide();
              MainFrame mf=new MainFrame();
              mf.show();
    }//GEN-LAST:event_jButton2ActionPerformed

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO 将在此处添加您的处理代码：
     name=nameTextField.getText().trim();
     pass1=String.valueOf(password1Field.getPassword());
     pass2=String.valueOf(password2Field.getPassword());
     if((!"".equals(name))&&(!"".equals(pass1))&&(!"".equals(pass2))&&(pass1.equals(pass2))){
         try{
       Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
       Connection con=DriverManager.getConnection("jdbc:odbc:library");
       Statement st=con.createStatement();
       String s1="insert into  user(name,pass,type) values('"+name+"','"+pass1+"','"+jComboBox1.getSelectedItem()+"')";
        int result =st.executeUpdate(s1);
      if(result>0){
         JOptionPane.showMessageDialog(this,"注册成功"); 
          this.hide();  
          LogFrame mf=new LogFrame();
          mf.show();
        }else{
           JOptionPane.showMessageDialog(null,"插入失败");
        }         
       st.close();
       con.close();
         }catch(Exception e){
           System.out.println("SQL错误!"+ e);
       }
         }else{
         JOptionPane.showMessageDialog(null,"重新输入");     
        }
        
    }//GEN-LAST:event_jButton1ActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new LoginFrame().setVisible(true);
            }
        });
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JTextField nameTextField;
    private javax.swing.JPasswordField password1Field;
    private javax.swing.JPasswordField password2Field;
    // 变量声明结束//GEN-END:variables
  String name;
  String pass1;
  String pass2;
}