taskmanagerpanel.java

多线程简单下载器 j2se实现 多线程简单下载器 j2se实现

package cn.dg.nitpro.globle;

import java.awt.*;
import java.io.*;
import javax.swing.*;

public class TaskManagerPanel extends JPanel{
	
	public TaskManagerPanel(){
		setBackground(Color.WHITE);
		setLayout(new FlowLayout(FlowLayout.LEFT));
		setPreferredSize(new Dimension(590, 250));
		
		taskRead();
	}
	
	public void taskRead(){
		try{
			ObjectInputStream o = new ObjectInputStream(new FileInputStream("globalget.save"));
			
			int taskcount = o.readInt();
			DownLoad task;
			TaskPanel panel;
			for (int i=0;i<taskcount;i++){
				task = (DownLoad)o.readObject();
				task.reset();
				
				panel = new TaskPanel();
				task.BindPanel(panel);
				
				add(panel);
			}
			
		}catch(Exception e){
			//e.printStackTrace();
		}
	}
	
	public void taskSave(){
		try{
			ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("globalget.save"));
			
			Component[] taskpanel = getComponents();
			TaskPanel t ;
			
			o.writeInt(taskpanel.length);
			for (int i=0;i<taskpanel.length;i++){
				t = (TaskPanel)taskpanel[i];
				
				o.writeObject(t.task);
			}
			o.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}