Java多线程之readwritelock读写分离的实现代码

package com.bird.concursey.charpet3; import java.util.concurrent.locks.ReadWriteLock; import java.util.concurrent.locks.ReentrantReadWriteLock; public class PricesInfo {   private double price1;   private double price2;   private ReadWriteLock lock;   public PricesInfo() {     price1 = 1.0;     price2 = 2.0;     lock = new ReentrantReadWriteLock();   }   public double getPrice1() {     //读取资源锁定     lock.readLock().lock();     double value = price1;     lock.readLock().unlock();     return value;   }   public double getPrice2() {     lock.readLock().lock();     double value = price2;     lock.readLock().unlock();     return value;   }   public void setPrices(double price1, double price2) {     lock.writeLock().lock();     this.price1 = price1;     this.price2 = price2;     lock.writeLock().unlock();   } }