JAVA线程状态、线程START方法源码、多线程、JAVA线程池、如何停止一个线程等多线程问题
这两个方法有点容易记混,这里就记录一下源码。
Thread.interrupted()和Thread.currentThread().isInterrupted()区别
静态方法Thread.interrupted()源码如下:
public static boolean interrupted() { return currentThread().isInterrupted(true); }
可以看到,静态方法内部,调用了currentThread()获取当前线程后调用非静态方法isInterrupted();
根据源码,看到的区别是在于给isInterrupted()方法传参为true或不传参。
非静态方法Thread.currentThread().isInterrupted()源码如下:
public boolean isInterrupted() { return isInterrupted(false); }
调用了isInterrupted(boolean ClearInterrupted)的有参方法:
/** * Tests if some Thread has been interrupted. The interrupted state * is reset or not based on the value of ClearInterrupted that is * passed. */ private native boolean isInterrupted(boolean ClearInterrupted);
该方法先获取线程中断状态,然后在根据参数决定是否重置中断状态,true重置,false不重置。
简单总结下:
静态方法Thread.interrupted()获取线程中断状态后,会重置中断状态为false;
非静态方法Thread.currentThread().isInterrupted()获取线程中断状态后,不会重置中断状态。