suppliermanageframe.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

    JButton tmpBtn = new JButton();
    for(int i = 0; i < components.length; i++){
      components[i].setFont(dialog13);
      if(components[i].getClass().getName().equals("javax.swing.JButton")){
        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
    supplier = new String[0][16];
    //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("");
      }
    }
  }
  //显示查询供应商的方法
  public void showSearchSupplier(){
    listData1.clear();
    //为供应商列表框加入供应商数据
    for(int i = 0; i < supplier.length; i++){
      listData1.addElement(supplier[i][0]);
    }
  }
  //显示单个供应商的方法
  public void showSupplier(){
    //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;
    }
    //显示供应商的数据
    jTextField1.setText(supplier[selectedIndex][0]);
    jTextField2.setText(supplier[selectedIndex][1]);
    jTextField3.setText(supplier[selectedIndex][2]);
    jTextField4.setText(supplier[selectedIndex][3]);
    jTextField5.setText(supplier[selectedIndex][4]);
    jTextField6.setText(supplier[selectedIndex][5]);
    jTextField7.setText(supplier[selectedIndex][6]);
    jTextField8.setText(supplier[selectedIndex][7]);
    jTextField9.setText(supplier[selectedIndex][8]);
    jTextField10.setText(supplier[selectedIndex][9]);
    jTextField11.setText(supplier[selectedIndex][10]);
    jTextField12.setText(supplier[selectedIndex][11]);
    jTextField13.setText(supplier[selectedIndex][12]);
    jTextField14.setText(supplier[selectedIndex][13]);
    jTextField15.setText(supplier[selectedIndex][14]);
    jTextArea1.setText(supplier[selectedIndex][15]);
  }
  //清空单个供应商显示的方法
  public void clearSupplier(){
    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.showSupplier();
    }else{
      this.clearSupplier();
    }
  }
  //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:
        //根据供应商名字取得记录
        supplier = stockManagementData.getSuppliersBySupplierName(searchValue);
        break;
      case 1:
        //根据地区取得记录
        supplier = stockManagementData.getSuppliersBySupplierZone(searchValue);
        break;
    }
    this.showSearchSupplier();
  }
  //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, "请选择供应商.");
        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.clearSupplier();
      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")){
      //取得供应商的值
      String[] supplierArray = new String[16];
      supplierArray[0] = jTextField1.getText().trim();
      supplierArray[1] = jTextField2.getText().trim();
      supplierArray[2] = jTextField3.getText().trim();
      supplierArray[3] = jTextField4.getText().trim();
      supplierArray[4] = jTextField5.getText().trim();
      supplierArray[5] = jTextField6.getText().trim();
      supplierArray[6] = jTextField7.getText().trim();
      supplierArray[7] = jTextField8.getText().trim();
      supplierArray[8] = jTextField9.getText().trim();
      supplierArray[9] = jTextField10.getText().trim();
      supplierArray[10] = jTextField11.getText().trim();
      supplierArray[11] = jTextField12.getText().trim();
      supplierArray[12] = jTextField13.getText().trim();
      supplierArray[13] = jTextField14.getText().trim();
      supplierArray[14] = jTextField15.getText().trim();
      supplierArray[15] = jTextArea1.getText().trim();
      if(supplierArray[0].length() == 0){
        JOptionPane.showMessageDialog(null, "供应商名字不允许空值.");
        return;
      }
      if(action.equals("create")){
        //创建供应商
        int result = stockManagementData.createSupplier(supplierArray);
        if(result == 1){
          //为列表框加入供应商
          listData1.addElement(supplierArray[0]);
          //更新供应商数组
          String[][] tempStrs = new String[supplier.length + 1][16];
          System.arraycopy(supplier, 0, tempStrs, 0, supplier.length);
          for(int i = 0; i < 16; i++){
            tempStrs[supplier.length][i] = supplierArray[i];
          }
          supplier = tempStrs;
          jList1.setSelectedIndex(listData1.size() -1);
        }else{
          JOptionPane.showMessageDialog(null, "供应商创建失败,请检查该供应商是否存在和值是否超出字段长度.");
        }
      }else if (action.equals("update")){
        //更新供应商
        int result = stockManagementData.updateSupplier(supplierArray);
        if(result == 1){
          //更新供应商数组
          int selectedIndex = jList1.getSelectedIndex();
          for(int i = 0; i < 16; i++){
            supplier[selectedIndex][i] = supplierArray[i];
          }
        }else{
          JOptionPane.showMessageDialog(null, "供应商更新失败.");
        }
      }else if (action.equals("delete")){
        //删除供应商
        int result = stockManagementData.deleteSupplier(supplierArray[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[supplier.length -1][16];
          int line = 0;
          for(int i = 0; i < supplier.length; i++){
            if(i == selectedIndex){
              continue;
            }else{
              for(int j = 0; j < 16; j++){
                tempStrs[line][j] = supplier[i][j];
              }
              line++;
            }
          }
          supplier = tempStrs;
          //清空编辑框的值
          this.clearSupplier();
        }else{
          JOptionPane.showMessageDialog(null, "供应商删除失败.");
        }
      }
      this.checkBtn(false);
    }else if(actionCommand.equals("cancel")){
       this.jList1_valueChanged(null);
       this.checkBtn(false);
    }else if(actionCommand.equals("exit")){
      exit();
    }
  }
}