英文:
Does the lock on a static synchronized method affect the non-static synchronized methods of it's instances?
问题
假设我有两个方法，一个声明为synchronized，另一个声明为static synchronized。因此，当一个线程获取类级别的锁时，它是否也会获取所有实例的锁？换句话说，如果一个线程获取了类级别的锁，是否可以同时让另一个线程获取其某个实例级别的对象锁？
英文:
Suppose I have 2 methods, one declared as synchronized and the other declared as static synchronized.
So when a thread acquires the class-level lock, does it acquire the locks on all its instances as well? In other words, if a thread acquires a class-level lock, can another thread acquire an object-level lock on one of its instances simultaneously?
答案1
得分: 6
一个static synchronized方法会获取该类的Class实例上的锁。一个synchronized方法会获取this上的锁。当您通过调用同步静态方法获取类级别的锁时，对象级别的锁不受影响。
英文:
A static synchronized method will acquire the lock on the Class instance for the class. A synchronized method will acquire the lock on this. When you acquire the class level lock by calling a synchronized static method, the object-level locks are not affected.
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