我正嘗試使用多線程實現Java(Swing)中的MVC範例。目前,我使用Observer類和Model類以及Observable Class擴展了View類,並且它的工作正常(我的代碼沿着這個例子:http://austintek.com/mvc/)。控制器類簡單地調用相應的模型和視圖函數,並且有一個主要的「粘合」程序來設置所有的東西。但是,這種方法不使用線程。 有沒有什麼辦法可以通過使用線程和 Observer/Observable類同時實現?使用線程在Swing(Java)中實現MVC範例
(我的目的是實現各M,V和C的作爲單獨的線程)
以下是我的視圖代碼部分:
public class View implements Observer
{
/*************************************** View *************************************
**
** This function is the constructor of the View class.
**
** PRE: <nothing>
** POST: the GUI is created and the directory is displayed on the screen.
** RETURN: <N/A>
**
**/
View(String name)
{
threadName = name;
//frame in constructor and not an attribute as doesn't need to be visible to whole class
JFrame frame = new JFrame("simple MVC");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
addElements(frame); // this is implemented separately
// frame.addWindowListener(new CloseListener());
frame.setSize(900, 732);
// frame.setLocation(100,100);
/** Display the window **/
//frame.pack();
frame.setVisible(true);
}// View
而下面是部分我的型號代碼:
public class Model extends java.util.Observable
{
/****************** variable DECLARATIONS *********************/
// The hash table in which the directory is stored
private Hashtable<String, Integer> tel_dir
= new Hashtable<String, Integer>();
// The path of the telephone directory during runtime
private URL filePath
= Model.class.getClassLoader().getResource("directory.txt");
// the name of the thread
private String threadName;
/****** private Thread t; ******/
// the object in which the message is sent to the view
private Message message = new Message();
/** GETTERS and SETTERS **/
....
/*************************************** Model *************************************
**
** This function is the constructor of the model class.
**
** PRE: <nothing>
** POST: the telephone directory is input from the file and stored in a hash
** table.
** RETURN: <N/A>
**
**/
Model(String name)
{
int phone_num;
String customer_name;
Scanner scanner = null;
threadName = name;
/** Opening the handle to the file containing the telephone directory **/
try
{
scanner = new Scanner(new File(filePath.getPath()));
}
catch (FileNotFoundException e1)
{
e1.printStackTrace();
}
/** Inputting from the file and storing it in the hash table **/
while (scanner.hasNextInt())
{
phone_num = scanner.nextInt();
customer_name = scanner.nextLine();
customer_name = customer_name.trim();
tel_dir.put(customer_name, phone_num);
}
}// Model
Swing已經扮演了視圖和控制器的角色。你想如何解耦? –