customermanageframe.java

一个使用java 写的进销存代码 使用了ejb 等技术 是学习j2ee的好

        tmpBtn = (JButton)components[i];
        tmpBtn.addActionListener(this);
      }
    }
  }
  //退出方法
  public void exit(){
    //隐藏窗口
    this.setVisible(false);
    //清空数组的内容
    customer = new String[0][17];
    //清空列表框的内容
    listData1.clear();
    //取得面板上的所有控件
    Component[] components = contentPane.getComponents();
    //创建临时文本框控件
    JTextField tmpTextField = new JTextField();
    for(int i = 0; i < components.length; i++){
      if(components[i].getClass().getName().equals("javax.swing.JTextField")){
        tmpTextField = (JTextField)components[i];
        //清空编辑框的内容
        tmpTextField.setText("");
      }
    }
  }
  //显示查询客户的方法
  public void showSearchCustomer(){
    listData1.clear();
    //为客户列表框加入客户数据
    for(int i = 0; i < customer.length; i++){
      listData1.addElement(customer[i][0]);
    }
  }
  //显示单个客户的方法
  public void showCustomer(){
    //取得当前选择项的位置
    int selectedIndex = jList1.getSelectedIndex();
    //当列表框不处于选择状态，不显示数据
    if(selectedIndex == -1){
       return;
    }
    //显示客户的数据
    jTextField1.setText(customer[selectedIndex][0]);
    jTextField2.setText(customer[selectedIndex][1]);
    jTextField3.setText(customer[selectedIndex][2]);
    jTextField4.setText(customer[selectedIndex][3]);
    jTextField5.setText(customer[selectedIndex][4]);
    jTextField6.setText(customer[selectedIndex][5]);
    jTextField7.setText(customer[selectedIndex][6]);
    jTextField8.setText(customer[selectedIndex][7]);
    jTextField9.setText(customer[selectedIndex][8]);
    jTextField10.setText(customer[selectedIndex][9]);
    jTextField11.setText(customer[selectedIndex][10]);
    jTextField12.setText(customer[selectedIndex][11]);
    jTextField13.setText(customer[selectedIndex][12]);
    jTextField14.setText(customer[selectedIndex][13]);
    jTextField15.setText(customer[selectedIndex][14]);
    jTextArea1.setText(customer[selectedIndex][16]);
  }
  //清空单个客户显示的方法
  public void clearCustomer(){
    jTextField1.setText("");
    jTextField2.setText("");
    jTextField3.setText("");
    jTextField4.setText("");
    jTextField5.setText("");
    jTextField6.setText("");
    jTextField7.setText("");
    jTextField8.setText("");
    jTextField9.setText("");
    jTextField10.setText("");
    jTextField11.setText("");
    jTextField12.setText("");
    jTextField13.setText("");
    jTextField14.setText("");
    jTextField15.setText("");
    jTextArea1.setText("");
  }
  //设置用户的方法
  public void setUser(User user) {
    this.user = user;
  }
  protected void processWindowEvent(WindowEvent e) {
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      exit();
    }
  }
  //检查按钮的状态
  public void checkBtn(boolean isManipulated){
    if(isManipulated){
      jButton2.setEnabled(false);
      jButton3.setEnabled(false);
      jButton4.setEnabled(false);
      jButton5.setEnabled(true);
      jButton6.setEnabled(true);
    }else{
      jButton2.setEnabled(true);
      jButton3.setEnabled(true);
      jButton4.setEnabled(true);
      jButton5.setEnabled(false);
      jButton6.setEnabled(false);
    }
  }
  //列表1的选择事件
  void jList1_valueChanged(ListSelectionEvent e) {
    if(listData1.size() > 0){
      this.showCustomer();
    }else{
      this.clearCustomer();
    }
  }
  //查询方法
  public void search(){
    //取得查询选项
    int selectedIndex = jComboBox1.getSelectedIndex();
    String searchValue = jTextField16.getText().trim();
    switch (selectedIndex) {
      case 0:
        //根据客户名字取得记录
        customer = stockManagementData.getCustomersByCustomerName(searchValue);
        break;
      case 1:
        //根据地区取得记录
        customer = stockManagementData.getCustomersByCustomerZone(searchValue);
        break;
    }
    this.showSearchCustomer();
  }
  //单击事件方法
  public void actionPerformed(ActionEvent e) {
    //取得按钮的动作字符串
    String actionCommand = e.getActionCommand().trim();
    if(actionCommand.equals("update") | actionCommand.equals("delete")){
      if(jList1.isSelectionEmpty()){
        JOptionPane.showMessageDialog(null, "请选择客户.");
        return;
      }
    }
    //单击按钮的处理代码
    if (actionCommand.equals("search")) {
      String searchValue = jTextField16.getText().trim();
      if(searchValue.length() == 0){
        JOptionPane.showMessageDialog(null, "请输入查询值");
        return;
      }
      //查询
      search();
    }else if(actionCommand.equals("create")){
      action = "create";
      this.clearCustomer();
      this.checkBtn(true);
    }else if(actionCommand.equals("update")){
      action = "update";
      this.checkBtn(true);
    }else if(actionCommand.equals("delete")){
      action = "delete";
      this.checkBtn(true);
    }else if(actionCommand.equals("ok")){
      //取得客户的值
      String[] customerArray = new String[17];
      customerArray[0] = jTextField1.getText().trim();
      customerArray[1] = jTextField2.getText().trim();
      customerArray[2] = jTextField3.getText().trim();
      customerArray[3] = jTextField4.getText().trim();
      customerArray[4] = jTextField5.getText().trim();
      customerArray[5] = jTextField6.getText().trim();
      customerArray[6] = jTextField7.getText().trim();
      customerArray[7] = jTextField8.getText().trim();
      customerArray[8] = jTextField9.getText().trim();
      customerArray[9] = jTextField10.getText().trim();
      customerArray[10] = jTextField11.getText().trim();
      customerArray[11] = jTextField12.getText().trim();
      customerArray[12] = jTextField13.getText().trim();
      customerArray[13] = jTextField14.getText().trim();
      customerArray[14] = jTextField15.getText().trim();
      customerArray[15] = "0";
      customerArray[16] = jTextArea1.getText().trim();
      if(customerArray[0].length() == 0){
        JOptionPane.showMessageDialog(null, "客户名字不允许空值.");
        return;
      }
      if(action.equals("create")){
        //创建客户
        int result = stockManagementData.createCustomer(customerArray);
        if(result == 1){
          //为列表框加入客户
          listData1.addElement(customerArray[0]);
          //更新客户数组
          String[][] tempStrs = new String[customer.length + 1][17];
          System.arraycopy(customer, 0, tempStrs, 0, customer.length);
          for(int i = 0; i < 17; i++){
            tempStrs[customer.length][i] = customerArray[i];
          }
          customer = tempStrs;
          jList1.setSelectedIndex(listData1.size() -1);
        }else{
          JOptionPane.showMessageDialog(null, "客户创建失败,请检查该客户是否存在和值是否超出字段长度.");
        }
      }else if (action.equals("update")){
        //客户信用限度保存不变
        int selectedIndex = jList1.getSelectedIndex();
        customerArray[15] = customer[selectedIndex][15];
        //更新客户
        int result = stockManagementData.updateCustomer(customerArray);
        if(result == 1){
          //更新客户数组
          for(int i = 0; i < 17; i++){
            if(i == 15){
              continue;
            }else{
              customer[selectedIndex][i] = customerArray[i];
            }
          }
        }else{
          JOptionPane.showMessageDialog(null, "客户更新失败.");
        }
      }else if (action.equals("delete")){
        //删除客户
        int result = stockManagementData.deleteCustomer(customerArray[0]);
        if(result == 1){
          int selectedIndex = jList1.getSelectedIndex();
          //删除列表框的数据
          listData1.removeElementAt(selectedIndex);
          //更改数组的数据
          String[][] tempStrs = new String[customer.length -1][17];
          int line = 0;
          for(int i = 0; i < customer.length; i++){
            if(i == selectedIndex){
              continue;
            }else{
              for(int j = 0; j < 17; j++){
                tempStrs[line][j] = customer[i][j];
              }
              line++;
            }
          }
          customer = tempStrs;
          //清空编辑框的值
          this.clearCustomer();
        }else{
          JOptionPane.showMessageDialog(null, "客户删除失败.");
        }
      }
      this.checkBtn(false);
    }else if(actionCommand.equals("cancel")){
       this.jList1_valueChanged(null);
       this.checkBtn(false);
    }else if(actionCommand.equals("exit")){
      exit();
    }
  }
}