tranferpanel.java

银行管理系统,根据实习的要求以及参考现实中的银行数据库系统

package bank;

import javax.swing.*;
import com.borland.jbcl.layout.XYLayout;
import com.borland.jbcl.layout.*;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.Connection;
import java.awt.Color;

//转帐界面........
public class TranferPanel extends JPanel{
  public TranferPanel(String accountID,String branchname,String pswd) {
    try {
      jbInit();
      this.accountID=accountID;
     this.branchname=branchname;
     this.pswd=pswd;

    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }


  private void jbInit() throws Exception {
    jLabel2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14));
    jButton3.setFont(new java.awt.Font("Dialog", Font.PLAIN, 12));
    jButton1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 12));
    jButton2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 12));
    jTextField2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 12));
    jLabel1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14));
    jLabel1.setText("输入转帐对方的卡号：");
    this.setLayout(xYLayout1);
    jLabel2.setText("卡号类型为：");
    jButton1.setText("确定");
    jButton2.setVisible(false);

    jButton1.addActionListener(new TranferPanel_jButton1_actionAdapter(this));
    jTextField2.setEditable(false);
    jTextField2.setText("等待中...");
    jButton2.setText("确定转帐");
    jButton2.addActionListener(new TranferPanel_jButton2_actionAdapter(this));
    jButton3.setText("重置");
    jButton3.addActionListener(new TranferPanel_jButton3_actionAdapter(this));
    jLabel3.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14));
    jLabel3.setText("转帐金额：");
    jLabel4.setForeground(Color.red);
    jLabel4.setText("--------------------------------------------------------------------------------------------");
    this.setBackground(Color.pink);
    xYLayout1.setWidth(416);
    xYLayout1.setHeight(302);
    jButton4.setText("打印");
    jButton4.addActionListener(new TranferPanel_jButton4_actionAdapter(this));
    jButton4.setVisible(false);
    this.add(jTextField1, new XYConstraints(49, 60, 247, 30));
    this.add(jLabel1, new XYConstraints(21, 17, 173, 44));
    this.add(jLabel1, new XYConstraints(21, 17, 183, 44));
    this.add(jButton1, new XYConstraints(326, 64, 76, 28));
    this.add(jButton3, new XYConstraints(326, 108, 78, 28));
    this.add(jLabel2, new XYConstraints(15, 164, 87, 34));
    this.add(jLabel4, new XYConstraints(9, 144, 391, 18));
    this.add(jLabel3, new XYConstraints(17, 102, 74, 32));
    this.add(jTextField3, new XYConstraints(90, 108, 206, 32));
    this.add(jTextField2, new XYConstraints(103, 160, 229, 34));
    this.add(jTextArea1, new XYConstraints(19, 207, 291, 86));
    this.add(jButton2, new XYConstraints(324, 200, 87, 31));
    this.add(jButton4, new XYConstraints(331, 248, 71, 29));
  }

  JLabel jLabel1 = new JLabel();
  XYLayout xYLayout1 = new XYLayout();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel2 = new JLabel();
  JButton jButton1 = new JButton();
  JTextField jTextField2 = new JTextField();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  private Statement stmt;
  private Connection con;
  JTextField jTextField3 = new JTextField();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  private String accountID;
  private String branchname;
  private String pswd;
  static  String bran;
 static float mon=0;
 static float getm=0;
 static  String  toname;
  JTextArea jTextArea1 = new JTextArea();
  JButton jButton4 = new JButton();
  public void jButton3_actionPerformed(ActionEvent e) {
    jTextField1.setText("");
    jTextField2.setText("等待中...");
    jTextField3.setText("");
    jTextArea1.setText("");
    jButton1.setVisible(true);
    jButton2.setVisible(false);
    jButton4.setVisible(false);
  }
int time=0;
  String card="";
  public void jButton1_actionPerformed(ActionEvent e) {
     if(jTextField1.getText().trim().equals(""))
      {
         jTextField1.setText("");
        JOptionPane.showMessageDialog(null, "输入错误，请输入要转的帐号！");
        return;
      }
      if(jTextField1.getText().trim().equals(accountID))
      {
         jTextField1.setText("");
         JOptionPane.showMessageDialog(null, "不能进行同卡转帐！");
        return;
      }


      time++;//计算输入的次数
      if(time<2){
         toname = jTextField1.getText().trim();
         jTextField1.setText("");
        JOptionPane.showMessageDialog(null, "请再输入要转的帐号！");
        return;
      }
      card = jTextField1.getText().trim();
      if(!card.equals(toname))
      {
         time=0;
         jTextField1.setText("");
         JOptionPane.showMessageDialog(null, "要转的帐号不一致！");
         JOptionPane.showMessageDialog(null, "请重新输入要转的帐号！");
         return;
       }

    try{

        con = bankconnect.getconn();
        Statement stmt = con.createStatement();
        ResultSet rs = stmt.executeQuery(
            "select  branch_name from account where account_num like '%" + toname +
            "%'");
        while (rs.next()) {
          bran = rs.getString("branch_name");
          jTextField2.setText(bran);
          String sql = "select balance from account where account_num like '%" + accountID +
              "%'";
          rs=stmt.executeQuery(sql);
          String a="";
         while (rs.next()) a= rs.getString("balance");
         mon=Float.parseFloat(a);
         jButton1.setVisible(false);
         jButton2.setVisible(true);
          return;
        }
        JOptionPane.showMessageDialog(null, "the customer is not exist!");
      }
   catch(SQLException ex){
     System.out.print("数据库连接出错！"+ex.toString());
   }

  }

  public void jButton2_actionPerformed(ActionEvent e) throws SQLException {
    try {
      String sql;
      con = bankconnect.getconn();
      Statement stmt = con.createStatement();
     System.out.println(jTextField3.getText().trim().equals(""));
      if(!jTextField3.getText().trim().equals("")){
        if(Integer.parseInt(jTextField3.getText().trim())<0)
        {
          jTextField3.setText("");
          JOptionPane.showMessageDialog(null, "转帐的数目不能少于0，请重新输入金额！");
        }
          getm = Float.parseFloat(jTextField3.getText().trim());
       sql = "select balance from account where account_num like '%" + accountID +
             "%'";
      ResultSet   rs=stmt.executeQuery(sql);
         String a="";
        while (rs.next()) a= rs.getString("balance");
           mon=Float.parseFloat(a);

      if (bran.equals(branchname)) { //同行转帐

        if ( (mon - (getm * 0.02+getm)) >= 0) {
          try{
            //设置事务，
            con.setAutoCommit(false);
           sql = "update account set balance=balance-" + (getm * 0.02+getm) +
              "where account_num like '%" + accountID + "%'";
           stmt.executeUpdate(sql);
           sql = "update account set  balance=balance+" + getm +
              "where account_num like '%" + toname + "%'";
          stmt.executeUpdate(sql);
          jTextArea1.append("今天是:"+TodayTime.getLongDate()+",你已经成功转帐"+getm+"RMB,谢谢光临！");
          sql = "insert into message(account_num,message_context,message_time,message_class) values('" +
              accountID + "','" + jTextArea1.getText() + "','" +
              TodayTime.getLongDate() + "',3)";
          //打印信息。。。
          stmt.executeUpdate(sql);
          con.commit();
          con.setAutoCommit(true);
          jButton1.setVisible(true);
          jButton2.setVisible(false);
          jButton4.setVisible(true);
        }
        catch(Exception exp){
          con.rollback();//回滚
          exp.printStackTrace();
          stmt.close();
          con.close();
        }
        }
        else {
          jTextArea1.append("余额不足，谢谢光临！");

        }
      }
      else { //异行转帐
        if ( (mon - (getm * 0.05+getm)) >= 0) {
          //设置事务，回滚
          try{
          con.setAutoCommit(false);// 更改JDBC事务的默认提交方式
          sql = "update account set balance=balance-" + (getm * 0.05+getm) +
              "where account_num like '%" + accountID + "%'";
          stmt.executeUpdate(sql);
          sql = "update account set  balance=balance+" + getm +
                "where account_num like '%" + toname + "%'";
          stmt.executeUpdate(sql);
              jTextArea1.append("今天是:"+TodayTime.getLongDate()+",你已经成功转帐"+getm+"RMB,谢谢光临！");
          sql = "insert into message(account_num,message_context,message_time,message_class) values('" +
             accountID + "','" + jTextArea1.getText() + "','" +
             TodayTime.getLongDate() + "',3)";
         //打印信息。。。
         stmt.executeUpdate(sql);

          con.commit();//提交JDBC事务
          con.setAutoCommit(true);// 恢复JDBC事务的默认提交方式
          jButton1.setVisible(true);
          jButton2.setVisible(false);
          jTextArea1.append("你已经成功转帐，谢谢光临！");
          jButton4.setVisible(true);
          }
           catch(Exception exp){
           con.rollback();
           stmt.close();
           exp.printStackTrace();
           con.close();
         }
        }
        else {
          jTextArea1.append("余额不足，谢谢光临！");
        }
      }
    }
    else{
        JOptionPane.showMessageDialog(null, "请输入金额");
    }
    }
    catch(SQLException ex){

      System.out.print("数据库连接出错！"+ex.toString());
    }

  }

  public void jButton4_actionPerformed(ActionEvent e) {
     JOptionPane.showMessageDialog(null,"操作成功！！！");
    jTextField1.setText("");
    jTextField2.setText("等待中...");
    jTextField3.setText("");
    jTextArea1.setText("");
    jButton1.setVisible(true);
    jButton2.setVisible(false);
    jButton4.setVisible(false);

  }
}

class TranferPanel_jButton4_actionAdapter
    implements ActionListener {
  private TranferPanel adaptee;
  TranferPanel_jButton4_actionAdapter(TranferPanel adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton4_actionPerformed(e);
  }
}

class TranferPanel_jButton2_actionAdapter
    implements ActionListener {
  private TranferPanel adaptee;
  TranferPanel_jButton2_actionAdapter(TranferPanel adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e){
    try {
      adaptee.jButton2_actionPerformed(e);
    }
    catch (SQLException ex) {
    }
  }
}

class TranferPanel_jButton1_actionAdapter
    implements ActionListener {
  private TranferPanel adaptee;
  TranferPanel_jButton1_actionAdapter(TranferPanel adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}

class TranferPanel_jButton3_actionAdapter
    implements ActionListener {
  private TranferPanel adaptee;
  TranferPanel_jButton3_actionAdapter(TranferPanel adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton3_actionPerformed(e);
  }
}