在文本框中加载序列化文件内容

Question

我正在保存一个将Person类扩展为文本文件的Customer。详细信息写在不同的文本框中，例如客户的姓名和姓氏。保存文本文件时，该文件不可读，但结尾处有详细信息。所以我仍然不知道它是否应该以这种方式保存...假设它被正确保存，我正在尝试加载保存的文件并用正确的内容填写文本框，例如Name和Surname of顾客。但是当加载文件时，我没有任何错误，就像什么也没发生或点击一样。因为我是新手并且不知道我做得不对，需要一些帮助。

 private void savecustButtonActionPerformed(java.awt.event.ActionEvent evt) {
     Customer customer = new Customer();
     try {
       FileOutputStream fos = new FileOutputStream("Customers/" + custidTF.getText() + ".txt");
       ObjectOutputStream oos = new ObjectOutputStream(fos);

       customer.setPersonName((custnameTF.getText()));
       customer.setPersonSurname((custsurnameTF.getText()));
       customer.setPersonID((custidTF.getText()));

       oos.writeObject(customer);
       oos.close();
       fos.close();

       custnameTF.setText("");
       custsurnameTF.setText("");
       custidTF.setText("");

       JOptionPane.showMessageDialog(this, "Person was Saved Successfully!",
         "Success", JOptionPane.INFORMATION_MESSAGE);

     } catch (IOException e) {
       JOptionPane.showMessageDialog(this, "Person could not be Saved!",
         "Error!", JOptionPane.INFORMATION_MESSAGE);

       dispose();

     }

loadCustomerActionPerformed

 private void loadCustomerActionPerformed(java.awt.event.ActionEvent evt) {
   Customer customerfile = null;
   try {

     final JFileChooser chooser = new JFileChooser("Customers/");
     int chooserOption = chooser.showOpenDialog(null);
     chooserOption = JFileChooser.APPROVE_OPTION;

     File file = new File(chooser.getSelectedFile().getAbsolutePath());
     ObjectInputStream in = new ObjectInputStream(
       new FileInputStream(file)
     );

     customerfile = (Customer) in .readObject();

     in .close();

   } catch (IOException ex) {
     System.out.println("Error loading file." + ex.getMessage());
   } catch (ClassNotFoundException ex) {
     System.out.println("Invalid class in loaded file.");
   }

 }

人

public class Person implements Serializable {

  private String personName;
  private String personSurname;
  private String personID;
  private String personTel;
  private String personMob;

  public Person() {

    }
    /**
     * @return the personName
     */
  public String getPersonName() {
    return personName;
  }

  /**
   * @param personName the personName to set
   */
  public void setPersonName(String personName) {
    this.personName = personName;
  }

  /**
   * @return the personSurname
   */
  public String getPersonSurname() {
    return personSurname;
  }

  /**
   * @param personSurname the personSurname to set
   */
  public void setPersonSurname(String personSurname) {
    this.personSurname = personSurname;
  }

  /**
   * @return the personID
   */
  public String getPersonID() {
    return personID;
  }

  /**
   * @param personID the personID to set
   */
  public void setPersonID(String personID) {
    this.personID = personID;
  }

客户

public class Customer extends Person implements Serializable {

  private String consultant;

  /**
   * @return the consultant
   */
  public String getConsultant() {
    return consultant;
  }

  /**
   * @param consultant the consultant to set
   */
  public void setConsultant(String consultant) {
    this.consultant = consultant;
  }

}