Synchronize对象属性改变

分手后的思念是犯贱 2022-05-15 11:30 202阅读 0赞

### 对象属性改变 ###

使用一个对象进行加锁时

如果，对象本身不发生改变，依然是同步的  
对象属性，发生改变，不会影响同步

package com.bjsxt.base.sync006;
    
    /** * 同一对象属性的修改不会影响锁的情况 * */
    public class ModifyLock { 
    
        private String name;
        private int age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public int getAge() {
            return age;
        }
    
        public void setAge(int age) {
            this.age = age;
        }
    
        public synchronized void changeAttributte(String name, int age) {
            try {
                System.out.println("当前线程 : " + Thread.currentThread().getName() + " 开始");
                this.setName(name);
                this.setAge(age);
    
                System.out.println("当前线程 : " + Thread.currentThread().getName() + " 修改对象内容为： " + this.getName() + ", "
                        + this.getAge());
    
                Thread.sleep(2000);
                System.out.println("当前线程 : " + Thread.currentThread().getName() + " 结束");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    
        public static void main(String[] args) {
            final ModifyLock modifyLock = new ModifyLock();
            Thread t1 = new Thread(new Runnable() {
                @Override
                public void run() {
                    modifyLock.changeAttributte("张三", 20);
                }
            }, "t1");
            Thread t2 = new Thread(new Runnable() {
                @Override
                public void run() {
                    modifyLock.changeAttributte("李四", 21);
                }
            }, "t2");
    
            t1.start();
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            t2.start();
        }
    
    }

### 运行 ###

![这里写图片描述][70]

[70]: /images/20220515/a949044522044150aefce40ae22f1baa.png