简单实现多线程同步示例（模拟购票系统）

package cn.com.chysoft.demo2; import java.text.SimpleDateFormat; /** * 线程实现 * * @author chenyong QQ:369232566 * @date 2013-03-21 下午14:14 */ public class Instance implements Runnable { private Ticket ticket; private boolean isOk;// 是否购票成功 private TicketCentre centre;// 票务中心 private int wtime;// 购票耗时 public Instance(int wtime, Ticket ticket) { this.wtime = wtime; this.ticket = ticket; } private final void fun(int wtime) { this.centre = ticket.getCentre(); try { this.isOk = this.centre.buy(this.ticket);// 购买 /** * 设置余票，因为对象中的数值是共享的 */ this.showMessage(this.ticket.getCentre().getSurplus()); Thread.sleep(wtime); } catch (InterruptedException e) { e.printStackTrace(); } } public void showMessage(int current) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss:SSSSSSS --> "); StringBuffer sbCtx = new StringBuffer(sdf.format(this.ticket.getTime().getTime())); sbCtx.append(this.ticket.getUser()); if (this.isOk) { sbCtx.append(" 在 ").append(Thread.currentThread().getName()).append(" 购买 ").append(this.ticket.getNum()).append(" 张票, 当前剩余 ").append(current).append(" 张。"); } else { sbCtx.append(" 在 ").append(Thread.currentThread().getName()).append(" 购买失败！").append("剩余 ").append(current).append(" 张。"); } System.out.println(sbCtx); } public void run() { this.fun(this.wtime); } }