获取来自不同JComponents的信息

Question

我有一个GUI，主要是一项调查，当调查完成后，信息将被提取到一张表中，目前我无法获取所有信息，我创建了一个叫做完成处理程序的Actionlistener附加到调查GUI按钮“完成”，因此当完成按钮被点击时，它将提取所有信息并将其存储到我的DataStorage类中。以下是我的调查GUI，actionListener类和数据存储类。

/*********frame3 Survey*********/ 
    frame3 = new JFrame(); 
    frame3.setTitle("Student Survey"); 
    frame3.setLayout(new MigLayout()); 
    frame3.setDefaultCloseOperation(frame.EXIT_ON_CLOSE); 
    btnFinish = new JButton("Finish!"); 
    btnFinish.addActionListener(new FinishHandler()); 
    pSSFinish = new JPanel(); 
    pSSFinish.add(btnFinish); 
    String[] levelStrings = { "1.1", "1.2", "2.1", "2.2", "3.1", "3.2" }; 
    String[] DipStrings = { "Info-Communications", "Computer Engineering", "Mechatronics", "Electronics"}; 
    jcbDip = new JComboBox(DipStrings); 
    jcbLvl = new JComboBox(levelStrings); 
    jcbDip.addActionListener(new FinishHandler()); 
    jcbLvl.addActionListener(new FinishHandler()); 
    //pSSInfo 
    pSSInfo = new JPanel(); 
    pSSInfo.setBorder(loweredetched); 
    pSSInfo.setLayout(new MigLayout()); 
    lblSSTitleName = new JLabel("Name:"); 
    lblSSTitleID = new JLabel("Student ID:"); 
    lblSSName = new JLabel(""); 
    lblSSID = new JLabel(""); 
    pSSInfo.add(lblSSTitleName); 
    pSSInfo.add(lblSSName,"wrap"); 
    pSSInfo.add(lblSSTitleID); 
    pSSInfo.add(lblSSID); 

    //pSSCourse 
    pSSCourse = new JPanel(); 
    pSSCourse.setBorder(titleCourse); 
    pSSCourse.setLayout(new MigLayout()); 
    lblSSCourseDip = new JLabel("Diploma:"); 
    lblSSCourseLvl = new JLabel("Level:"); 
    lblSSCourseCre = new JLabel("No of credits:"); 
    txfSSCourse = new JTextField(8); 
    pSSCourse.add(lblSSCourseDip); 
    pSSCourse.add(jcbLvl,"wrap"); 
    pSSCourse.add(lblSSCourseLvl); 
    pSSCourse.add(jcbDip,"wrap"); 
    pSSCourse.add(lblSSCourseCre); 
    pSSCourse.add(txfSSCourse); 

    //pSSAge 
    pSSAge = new JPanel(); 
    pSSAge.setBorder(raisedbevel); 
    lblSSAge = new JLabel("Age"); 
    txfSSAge = new JTextField(8); 
    pSSAge.add(lblSSAge); 
    pSSAge.add(txfSSAge); 
    //pSSGender 
    String male = "Male"; 
    String female = "Female"; 
    btnMale = new JRadioButton(male); 
    btnMale.addActionListener(new FinishHandler()); 
    btnFemale = new JRadioButton(female); 
    btnFemale.addActionListener((new FinishHandler())); 
    ButtonGroup group = new ButtonGroup(); 
    group.add(btnMale); 
    group.add(btnFemale); 
    pSSGender = new JPanel(); 
    pSSGender.setBorder(titleGender); 
    pSSGender.setLayout(new MigLayout()); 
    pSSGender.add(btnMale,"wrap"); 
    pSSGender.add(btnFemale); 
    //pSSMisc 
    pSSMisc = new JPanel(); 
    pSSMisc.setBorder(titleMisc); 
    pSSMisc.setLayout(new MigLayout()); 
    cbMiscPt = new JCheckBox("Working Part Time"); 
    cbMiscPt.addItemListener(new FinishHandler()); 
    cbMiscPc = new JCheckBox("Have own PC/NoteBook"); 
    cbMiscPc.addItemListener(new FinishHandler()); 
    cbMiscChild = new JCheckBox("Have children"); 
    cbMiscChild.addItemListener(new FinishHandler()); 
    pSSMisc.add(cbMiscPt,"wrap"); 
    pSSMisc.add(cbMiscPc,"wrap"); 
    pSSMisc.add(cbMiscChild); 

    frame3.add(pSSFinish,"dock south"); 
    frame3.add(pSSInfo,"dock north"); 
    frame3.add(pSSCourse,"dock west"); 
    frame3.add(pSSAge,"wrap, grow"); 
    frame3.add(pSSGender); 
    frame3.add(pSSMisc,"dock east"); 

    frame3.pack(); 
    frame3.setVisible(false); 

/完成处理/

class FinishHandler implements ActionListener, ItemListener 
    { 
    public void actionPerformed(ActionEvent e) 
    { //System.out.println("current login in student is: "+ds.getStudent(currentUser).getUser()); 
    ds.getStudent(currentUser).setDiploma((String)jcbDip.getSelectedItem()); 
    System.out.println(ds.getStudent(currentUser).getDiploma());//debug 
    ds.getStudent(currentUser).setLevel((String)jcbLvl.getSelectedItem()); 
    System.out.println(ds.getStudent(currentUser).getLevel());//debug 
    ds.getStudent(currentUser).setCredits(txfSSCourse.getText()); 
    System.out.println(ds.getStudent(currentUser).getCredits());//debug 
    ds.getStudent(currentUser).setAge(txfSSAge.getText()); 
    System.out.println(ds.getStudent(currentUser).getAge()); 
    if(btnMale.getText().equals("Male")) 
    { 
    ds.getStudent(currentUser).setGender("Male"); 
    System.out.println(ds.getStudent(currentUser).getGender());//debug 
    } 

    else if(btnFemale.getText().equals("Female")) 
    { 
    ds.getStudent(currentUser).setGender("Female"); 
    System.out.println(ds.getStudent(currentUser).getGender());//debug 
    } 
    if(btnMale.getText().equals("")) 
    { 
    ds.getStudent(currentUser).setGender("Did not set"); 
    System.out.println(ds.getStudent(currentUser).getGender());//debug 
    } 
    } 

    public void itemStateChanged(ItemEvent e) 
    { 

     Object source = e.getItemSelectable(); 

     if (source == cbMiscPt) 
     { 
      ds.getStudent(currentUser).setPartTime(true); 
      System.out.println(ds.getStudent(currentUser).getPartTime());//debug 

     } 
      else if (source == cbMiscPc) 
     { 
      ds.getStudent(currentUser).setHavePc(true); 
      System.out.println(ds.getStudent(currentUser).getHavePc());//debug 
     } 
      else if (source == cbMiscChild) 
     { 
      ds.getStudent(currentUser).setHaveChild(true); 
      System.out.println(ds.getStudent(currentUser).getHaveChild());//debug 
     } 

     if (e.getStateChange() == ItemEvent.DESELECTED) 
     { 
     if (source == cbMiscPt) 
     { 
      ds.getStudent(currentUser).setPartTime(false); 
      System.out.println(ds.getStudent(currentUser).getPartTime());//debug 

     } 
      else if (source == cbMiscPc) 
     { 
      ds.getStudent(currentUser).setHavePc(false); 
      System.out.println(ds.getStudent(currentUser).getHavePc());//debug 
     } 
      else if (source == cbMiscChild) 
     { 
      ds.getStudent(currentUser).setHaveChild(false); 
      System.out.println(ds.getStudent(currentUser).getHaveChild());//debug 
     } 
     } 

    } 


    } 

/**** DataSotrage类***/

import java.util.*; 

public class DataStorage 
{ 
    HashMap<String, Student> students = new HashMap<String, Student>(); 
    HashMap<String, Staff> staffMembers = new HashMap<String, Staff>(); 
    //Default constructor 
    public DataStorage(){ 
    } 

    public void addStaffMember(Staff aAcc) 
    { 
    staffMembers.put(aAcc.getUser(),aAcc); 
    } 

    public void addStudentMember(Student aAcc) 
    { 
    students.put(aAcc.getUser(),aAcc); 
    } 

    public Staff getStaffMember(String user) 
    { 
    return staffMembers.get(user); 
    } 

    public Student getStudent(String user) 
    { 
    return students.get(user); 
    } 

} 

Answer 1

你已经走了的设计非常健谈。您只需将其设置为btnFinish即可为每个小部件附加一个新的FinishHandler。您设置的方式，对于GUI中的每个更改，您都将更新您的DataStorage对象。相反，只需将其添加到btnFinish，就可以减少Handler被调用的次数，并且可以简化您的过程。当然，您将需要巩固您的itemStateChanged和actionPerformed方法。这会让你在进入actionPerformed时初始化你的对象DataStorage，然后你可以启动你的持久化过程。当您将数据从内存移动到存储时，请看SwingWorker以及围绕concurrency in Swing的概念。

编辑：

通过“巩固您itemStateChanged和actionPerformed方法，”我的意思是将所有的数据，你收集你的复选框到执行的操作方法。这样，当你点击完成按钮时，你可以收集你所需要的所有数据，你的DataStorage对象。