多線程控制類- threadLocal基本用法演示

1.demo代碼:

package cn.yb.thread;
/**
 * threadLocal基本用法演示
 * @author yb
 *
 */
public class ThreadLocalDemo {
	// 1.創建銀行對象：錢，存款、取款
	static class Bank {
		private ThreadLocal<Integer> threadLocal = new ThreadLocal<Integer>() {
			protected Integer initialValue() {
		        System.out.println("initialValue---------");
				return 0;// 轉賬之前副本都爲0
			}

		};

		public Integer get() {// 取錢
			return threadLocal.get();
		}

		public void setInteger(Integer money) {
//			System.out.println("setInteger");
			threadLocal.set(money + threadLocal.get());// 存錢
//			System.out.println("setInteger end");

		}

	}

	// 2.創建一個轉賬對象：從銀行中取錢，轉賬，保存到賬戶
	static class Transfer implements Runnable {
        private Bank bank;
        public Transfer(Bank bank) {
           System.out.println("Transfer---------");
           this.bank = bank;	
        }
		public void run() {
          for(int i=0;i<10;i++) {
//        	 System.out.println(i);
        	 bank.setInteger(10); 
//        	 System.out.println("2");

 			System.out.println(Thread.currentThread().getName()+"賬戶餘額:"+bank.get());
          }
		}

	}
	// 3.在main方法中使用兩個對象模擬轉賬
	public static void main(String[] args) {
		Bank bank = new Bank();
		Transfer transfer = new Transfer(bank);
		Thread thread1 = new Thread(transfer,"客戶1");
		Thread thread2 = new Thread(transfer,"客戶2");
		thread1.start();
		thread2.start();
	}
}

2.運行效果: