frmfirst.java~19~

登陆界面 性能稳定,功能强大,易操作,好施工 嘉和期待与

package gui1;

import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import com.borland.jbcl.layout.XYLayout;
import com.borland.jbcl.layout.*;
import javax.swing.JLabel;
import java.awt.Font;
import java.awt.Color;
import javax.swing.JTextField;
import javax.swing.JPasswordField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.Connection;
import java.sql.DriverManager;

public class FrmFirst extends JFrame {
    JPanel contentPane;
    XYLayout xYLayout1 = new XYLayout();
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    JTextField txtUserName = new JTextField();
    JLabel jLabel3 = new JLabel();
    JPasswordField txtPassword = new JPasswordField();
    JButton btnOk = new JButton();
    JButton btnCancel = new JButton();
    JLabel jLabel4 = new JLabel();
    JComboBox cmbLevel = new JComboBox();
    public FrmFirst() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(xYLayout1);
        setSize(new Dimension(400, 300));
        setTitle("这是第一个窗体");
        jLabel1.setFont(new java.awt.Font("微软雅黑", Font.BOLD, 28));
        jLabel1.setForeground(Color.blue);
        jLabel1.setText("登录");
        jLabel2.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        jLabel2.setText("用户名");
        txtUserName.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        jLabel3.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        jLabel3.setText("密码");
        btnOk.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        btnOk.setForeground(Color.blue);
        btnOk.setText("确定");
        btnOk.addActionListener(new FrmFirst_btnOk_actionAdapter(this));
        txtPassword.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        btnCancel.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        btnCancel.setForeground(Color.blue);
        btnCancel.setText("取消");
       // btnCancel.addActionListener(new FrmFirst_btnCancel_actionAdapter(this));
        jLabel4.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        jLabel4.setText("权限");
        cmbLevel.setFont(new java.awt.Font("微软雅黑", Font.PLAIN, 24));
        contentPane.add(jLabel1, new XYConstraints(132, 5, 69, 49));
        contentPane.add(jLabel2, new XYConstraints(44, 75, 92, 37));
        contentPane.add(txtUserName, new XYConstraints(138, 82, 190, 34));
        contentPane.add(jLabel3, new XYConstraints(43, 125, -1, -1));
        contentPane.add(txtPassword, new XYConstraints(137, 132, 190, 36));
        contentPane.add(btnOk, new XYConstraints(94, 229, 91, 62));
        contentPane.add(btnCancel, new XYConstraints(192, 230, 98, 61));
        contentPane.add(jLabel4, new XYConstraints(46, 181, -1, -1));
        contentPane.add(cmbLevel, new XYConstraints(138, 182, 187, 37));
        this.cmbLevel.addItem("管理员");
        this.cmbLevel.addItem("用户");
        this.cmbLevel.addItem("签发员");
        this.cmbLevel.addItem("审批员");
    }

    public void btnOk_actionPerformed(ActionEvent actionEvent) {
//事件处理程序 ok

        String url= "jdbc:oracle:thin:@127.0.0.1:1521:BUCEA";
        String id = "scott";
        String password = "tiger";
        String sql="select * from login where id= ' "+
                   this .txtUserName.getText()+" ' and password='"+
                   new String(txtPassword.getPassword())+"'";


        try {
            Class.forName("oracle.jdbc.OracleDriver");
            Connection con=DriverManager.getConnection(url,id,password);
            Statement stmt = con.createStatement();
            ResultSet rs = stmt.executeQuery(sql);
            if(rs.next()){
            javax.swing.JOptionPane.showMessageDialog(this,"成功");

            }else{
            javax.swing.JOptionPane.showMessageDialog(this,"错");
            }
            rs.close();
            stmt.close();
            con.close();
        } catch (Exception ex) {
        }

        }


    }

   // public void btnCancel_actionPerformed(ActionEvent actionEvent) {
//cancel
      //  System.exit(0);

   // }
//}


class FrmFirst_btnOk_actionAdapter implements ActionListener {
    private FrmFirst adaptee;
    FrmFirst_btnOk_actionAdapter(FrmFirst adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.btnOk_actionPerformed(actionEvent);
    }
}


//class FrmFirst_btnCancel_actionAdapter implements ActionListener {
 //   private FrmFirst adaptee;
  //  FrmFirst_btnCancel_actionAdapter(FrmFirst adaptee) {
  //      this.adaptee = adaptee;
//    }

 //   public void actionPerformed(ActionEvent actionEvent) {
 //       adaptee.btnCancel_actionPerformed(actionEvent);
 //   }
//}