delete.java

最新推荐文章于 2022-04-29 12:17:55 发布

原创最新推荐文章于 2022-04-29 12:17:55 发布 · 201 阅读

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文章标签：

#null #delete #string #constructor #sql #import

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import javax.swing.SwingUtilities;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.Dimension;
import javax.swing.JLabel;
import java.awt.Rectangle;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.SwingConstants;

public class delete extends JFrame {

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;

private JLabel jLabel = null;

private JLabel jLabel1 = null;

private JTextField jTextField = null;

private JTextField jTextField1 = null;

private JButton jButton = null;

private JButton jButton1 = null;

/**
* This method initializes jTextField
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField() {
  if (jTextField == null) {
   jTextField = new JTextField();
   jTextField.setBounds(new Rectangle(130, 26, 145, 38));
   jTextField.setText("");
   jTextField.setHorizontalAlignment(JTextField.CENTER);
  }
  return jTextField;
}

/**
* This method initializes jTextField1
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField1() {
  if (jTextField1 == null) {
   jTextField1 = new JTextField();
   jTextField1.setBounds(new Rectangle(130, 69, 145, 38));
   jTextField1.setHorizontalAlignment(JTextField.CENTER);
  }
  return jTextField1;
}

/**
* This method initializes jButton
*
* @return javax.swing.JButton
*/
private JButton getJButton() {
  if (jButton == null) {
   jButton = new JButton();
   jButton.setBounds(new Rectangle(35, 122, 71, 44));
   jButton.setText("删除");
   jButton.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent e) {
     System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
    String uname="";
    String upass="";
    String sql="";
    uname=jTextField.getText();
    upass=jTextField1.getText();
    DBConnected.connect();
    sql="delete from t_user where username='"+uname+"' and password='"+upass+"'";
    System.out.println(sql);
    DBConnected.commit(sql);
    }
   });
  }
  return jButton;
}

/**
* This method initializes jButton1
*
* @return javax.swing.JButton
*/
private JButton getJButton1() {
  if (jButton1 == null) {
   jButton1 = new JButton();
   jButton1.setBounds(new Rectangle(181, 122, 71, 44));
   jButton1.setText("重置");
   jButton1.addActionListener(new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent e) {
     System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
    jTextField.setText("");
    jTextField1.setText("");

    }
   });
  }
  return jButton1;
}

/**
* @param args
*/
public static void main(String[] args) {
  // TODO Auto-generated method stub
  SwingUtilities.invokeLater(new Runnable() {
   public void run() {
    delete thisClass = new delete();
    thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    thisClass.setVisible(true);
   }
  });
}

/**
* This is the default constructor
*/
public delete() {
super();
initialize();
}

/**
* This method initializes this
*
* @return void
*/
private void initialize() {
  this.setSize(324, 217);
  this.setContentPane(getJContentPane());
  this.setTitle("JFrame");
}

/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
  if (jContentPane == null) {
   jLabel1 = new JLabel();
   jLabel1.setBounds(new Rectangle(22, 69, 79, 38));
   jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
   jLabel1.setText("密码");
   jLabel = new JLabel();
   jLabel.setBounds(new Rectangle(22, 26, 79, 38));
   jLabel.setHorizontalAlignment(SwingConstants.CENTER);
   jLabel.setText("用户名");
   jContentPane = new JPanel();
   jContentPane.setLayout(null);
   jContentPane.add(jLabel, null);
   jContentPane.add(jLabel1, null);
   jContentPane.add(getJTextField(), null);
   jContentPane.add(getJTextField1(), null);
   jContentPane.add(getJButton(), null);
   jContentPane.add(getJButton1(), null);
  }
  return jContentPane;
}