root.removeAllChildren();
    //更新結(jié)構(gòu)樹(shù)的顯示
    treeModel.reload();
    //顯示結(jié)構(gòu)樹(shù)的內(nèi)容
    this.showAccountNameTree(0, root);
    //展開(kāi)結(jié)構(gòu)樹(shù)的節(jié)點(diǎn)
    this.expandEntireTree(root);
  }
  //展開(kāi)節(jié)點(diǎn)的方法
  public void expandEntireTree(TreeNode node) {
    TreePath treePath = new TreePath( ( (DefaultMutableTreeNode) node).getPath());
    jTree1.expandPath(treePath);
    for (int i = 0; i < node.getChildCount(); i++) {
      expandEntireTree(node.getChildAt(i));
    }
  }
  //通過(guò)遞歸算法顯示會(huì)計(jì)科目結(jié)構(gòu)樹(shù)的方法
  public void showAccountNameTree(int parentId, DefaultMutableTreeNode parentTreeNode){
    //根據(jù)父標(biāo)識(shí)取得會(huì)計(jì)科目記錄
    String[][] tempAccountName = stockManagementData.getAccountNameByParentid(parentId);
    //為會(huì)計(jì)科目結(jié)構(gòu)樹(shù)加入會(huì)計(jì)科目數(shù)據(jù)
    DefaultMutableTreeNode tempTreeNode = null;
    for(int i = 0; i < tempAccountName.length; i++){
      //創(chuàng)建一個(gè)樹(shù)節(jié)點(diǎn)
      tempTreeNode = new DefaultMutableTreeNode(tempAccountName[i][0] + "、" +
                                                tempAccountName[i][2]);
      //為會(huì)計(jì)科目樹(shù)結(jié)構(gòu)集合添加記錄
      treeAccountNameVector.addElement(tempAccountName[i][2]);
      //為父節(jié)點(diǎn)加入樹(shù)節(jié)點(diǎn)
      parentTreeNode.add(tempTreeNode);
      //顯示下一級(jí)會(huì)計(jì)科目
      this.showAccountNameTree(Integer.parseInt(tempAccountName[i][0]), tempTreeNode);
    }
  }
  //結(jié)構(gòu)樹(shù)的選擇事件
  public void jTree1_valueChanged(TreeSelectionEvent e) {
    //取得選擇的樹(shù)節(jié)點(diǎn)對(duì)象
    if(!jTree1.isSelectionEmpty()){
      this.showAccountName();
    }else{
      this.clearAccountName();
    }
  }
  //顯示單個(gè)會(huì)計(jì)科目的方法
  public void showAccountName(){
    //取得當(dāng)前選擇節(jié)點(diǎn)
    DefaultMutableTreeNode node = (DefaultMutableTreeNode)
        jTree1.getLastSelectedPathComponent();
    String tempStr = (String)node.getUserObject();
    String tempAccountId = tempStr.substring(0, tempStr.indexOf("、"));
    if(Integer.parseInt(tempAccountId) == 0){
      //當(dāng)選擇根節(jié)點(diǎn)時(shí)，清空編輯框的內(nèi)容
      this.clearAccountName();
    }else{
      //顯示會(huì)計(jì)科目的數(shù)據(jù)
      int selectedIndex = accountNameVector.indexOf(tempAccountId);
      jTextField2.setText(accountName[selectedIndex][0]);
      jTextField3.setText(accountName[selectedIndex][1]);
      jTextField4.setText(accountName[selectedIndex][2]);
    }
  }
  //清空單個(gè)會(huì)計(jì)科目顯示的方法
  public void clearAccountName(){
    jTextField2.setText("");
    jTextField3.setText("");
    jTextField4.setText("");
  }
  //設(shè)置用戶的方法
  public void setUser(User user) {
    this.user = user;
  }
  protected void processWindowEvent(WindowEvent e) {
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      exit();
    }
  }
  //檢查按鈕的狀態(tài)
  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);
    }
  }
  //查詢方法
  public void search(String searchValue){
    //展開(kāi)結(jié)構(gòu)樹(shù)的所有樹(shù)技
    this.expandEntireTree(root);
    String tempAccountName = "";
    //根據(jù)查詢值選擇樹(shù)選項(xiàng)
    for(int i = 0; i < treeAccountNameVector.size(); i++){
      tempAccountName = (String)treeAccountNameVector.elementAt(i);
      if(tempAccountName.indexOf(searchValue) > -1){
        //1表示根節(jié)點(diǎn)的位置
        jTree1.setSelectionRow(i + 1);
        break;
      }
    }
  }
  //單擊事件方法
  public void actionPerformed(ActionEvent e) {
    //取得按鈕的動(dòng)作字符串
    String actionCommand = e.getActionCommand().trim();
    if(actionCommand.equals("update") | actionCommand.equals("delete")){
      if(jTree1.isSelectionEmpty()){
        JOptionPane.showMessageDialog(null, "請(qǐng)選擇會(huì)計(jì)科目.");
        return;
      }
    }
    //單擊按鈕的處理代碼
    if (actionCommand.equals("search")) {
      String searchValue = jTextField1.getText().trim();
      if(searchValue.length() == 0){
        JOptionPane.showMessageDialog(null, "請(qǐng)輸入查詢值");
        return;
      }
      //根據(jù)查詢值選擇樹(shù)節(jié)點(diǎn)
      this.search(searchValue);
    }else if(actionCommand.equals("showAll")){
      //重新取得會(huì)計(jì)科目數(shù)組和顯示結(jié)構(gòu)樹(shù)
      this.showAllAccountName();
    }else if(actionCommand.equals("create")){
      action = "create";
      this.clearAccountName();
      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")){
      //取得會(huì)計(jì)科目的值
      String accountId = jTextField2.getText().trim();
      String parentIdStr = jTextField3.getText().trim();
      int parentId = 0;
      String accountName = jTextField4.getText().trim();
      if(action.equals("create") | action.equals("update")){
        if(parentIdStr.length() == 0 | accountName.length() == 0){
          JOptionPane.showMessageDialog(null, "父索引和會(huì)計(jì)科目名字不允許空值.");
          return;
        }
        //檢查父索引是否整數(shù)
        if(dataMethod.checkInt(parentIdStr) == 0){
          JOptionPane.showMessageDialog(null, "父索引必須是整數(shù).");
          return;
        }else{
          parentId = Integer.parseInt(parentIdStr);
        }
        //檢查父索引是否存在
        if(accountNameVector.indexOf(parentIdStr) == -1){
          if(parentId != 0){
            JOptionPane.showMessageDialog(null, "父索引不存在，請(qǐng)檢查會(huì)計(jì)科目的序號(hào).");
            return;
          }
        }
      }
      if(action.equals("create")){
        //創(chuàng)建會(huì)計(jì)科目
        int result = stockManagementData.createAccountName(parentId, accountName);
        if(result == 1){
          //重新取得會(huì)計(jì)科目
          this.showAllAccountName();
          //選擇新創(chuàng)建的會(huì)計(jì)科目
          this.search(accountName);
        }else{
          JOptionPane.showMessageDialog(null, "會(huì)計(jì)科目創(chuàng)建失敗,請(qǐng)檢查該會(huì)計(jì)科目"
                                        + "值是否超出字段長(zhǎng)度.");
        }
      }else if (action.equals("update")){
        //更新會(huì)計(jì)科目
        int result = stockManagementData.updateAccountName(Integer.parseInt(
            accountId), parentId, accountName);
        if(result == 1){
          //重新取得會(huì)計(jì)科目
          this.showAllAccountName();
          //選擇更新后的會(huì)計(jì)科目
          this.search(accountName);
        }else{
          JOptionPane.showMessageDialog(null, "會(huì)計(jì)科目更新失敗.");
        }
      }else if (action.equals("delete")){
        if(accountId.length() == 0){
          JOptionPane.showMessageDialog(null, "請(qǐng)選擇會(huì)計(jì)科目.");
          return;
        }
        //刪除會(huì)計(jì)科目
        int result = stockManagementData.deleteAccountName(Integer.parseInt(accountId));
        if(result == 1){
          //重新取得會(huì)計(jì)科目
          this.showAllAccountName();
        }else{
          JOptionPane.showMessageDialog(null, "會(huì)計(jì)科目刪除失敗.");
        }
      }
      this.checkBtn(false);
    }else if(actionCommand.equals("cancel")){
       this.jTree1_valueChanged(null);
       this.checkBtn(false);
    }else if(actionCommand.equals("exit")){
      exit();
    }
  }
}