第一次在这里发帖，所以请温柔！我已经广泛搜索了我的问题的答案，但一无所获。
我正在尝试学习和应用 MVC 架构来创建 Java Swing 应用程序。我想我理解模型、视图和控制器的不同角色。
但是，我的应用程序有一个 JMenuBar（文件、编辑等...）。
我想要做的是在单击一个菜单项后，一个要弹出的表单（它从 DVSDesk 类委托给控制器）。
我遇到的困难是如何显示接受控制器和模型的表单——根据我的阅读，每个 JFrame 都需要它自己的线程，这就是我感到困惑的地方。由于invokeLater它在自己独特的线程中，我似乎无法传递模型或控制器。
抱歉，如果这是一个愚蠢的问题，但我一直在四处寻找，似乎无处可去！
编辑——我真正的问题—— showImporterForm() 是创建和显示新表单的正确方法吗？
下面是主线程的代码（DVSMain.java）
public static void main(String[] args) {
TopLevelController TLC;
TopLevelModel TLM;
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
TopLevelModel TLM = new TopLevelModel();
TopLevelController TLC = new TopLevelController(TLM);
}
});
}
下面是控制器的代码（TopLevelController.java）
public class TopLevelController {
// Initialise model and view
TopLevelModel TLM;
DVSDesk TLV;
public TopLevelController(TopLevelModel model) {
// Get a reference to the view and model
TLM = model;
TLV = new DVSDesk(this,model);
TLV.setVisible(true);
}
public void showImporter() {
ImportForm importFm = new ImportForm(this,TLM);
importFm.setVisible(true);
}
/*public void showForm(final Form fm) {
// Show the form which has been passed in
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
fm.show();
}
});
}*/
public void quit() {System.exit(0);};
}
下面是来自 DVSDesk.java 的代码（基于菜单的 GUI）......
public class DVSDesk extends javax.swing.JFrame {
/**
* Creates new form DVSDesk
*/
TopLevelController TLC;
TopLevelModel TLM;
public DVSDesk(TopLevelController controller, TopLevelModel model) {
initComponents();
TLC = controller;
TLM = model;
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLayeredPane1 = new javax.swing.JLayeredPane();
jSeparator1 = new javax.swing.JSeparator();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
fImportDiags = new javax.swing.JMenuItem();
jSeparator2 = new javax.swing.JPopupMenu.Separator();
fQuit = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jMenu1.setText("File");
fImportDiags.setText("Import Diagrams...");
fImportDiags.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
fImportDiagsActionPerformed(evt);
}
});
jMenu1.add(fImportDiags);
jMenu1.add(jSeparator2);
fQuit.setText("Quit...");
fQuit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
fQuitActionPerformed(evt);
}
});
jMenu1.add(fQuit);
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 800, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 579, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
private void fQuitActionPerformed(java.awt.event.ActionEvent evt) {
TLC.quit();
}
private void fImportDiagsActionPerformed(java.awt.event.ActionEvent evt) {
TLC.showImporter();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/*
* If Nimbus (introduced in Java SE 6) is not available, stay with the
* default look and feel. For details see
* http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(DVSDesk.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(DVSDesk.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(DVSDesk.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(DVSDesk.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
}
// Variables declaration - do not modify
private javax.swing.JMenuItem fImportDiags;
private javax.swing.JMenuItem fQuit;
private javax.swing.JLayeredPane jLayeredPane1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JPopupMenu.Separator jSeparator2;
// End of variables declaration
}