在Java编程中，如何中断正在运行的线程？
以下示例演示如何使用Thread类的interrupt()方法中断正在运行线程，并检查线程是否使用isInterrupted()方法中断。
package com.yiibai;
public class InterruptThread extends Object implements Runnable {
public void run() {
try {
System.out.println("in run() - about to work2()");
work2();
System.out.println("in run() - back from work2()");
} catch (InterruptedException x) {
System.out.println("in run() - interrupted in work2()");
return;
}
System.out.println("in run() - doing stuff after nap");
System.out.println("in run() - leaving normally");
}
public void work2() throws InterruptedException {
while (true) {
if (Thread.currentThread().isInterrupted()) {
System.out.println("C isInterrupted()=" + Thread.currentThread().isInterrupted());
Thread.sleep(2000);
System.out.println("D isInterrupted()=" + Thread.currentThread().isInterrupted());
}
}
}
public void work() throws InterruptedException {
while (true) {
for (int i = 0; i < 100000; i++) {
int j = i * 2;
}
System.out.println("A isInterrupted()=" + Thread.currentThread().isInterrupted());
if (Thread.interrupted()) {
System.out.println("B isInterrupted()=" + Thread.currentThread().isInterrupted());
throw new InterruptedException();
}
}
}
public static void main(String[] args) {
InterruptThread si = new InterruptThread();
Thread t = new Thread(si);
t.start();
try {
Thread.sleep(2000);
} catch (InterruptedException x) {
}
System.out.println("in main() - interrupting other thread");
t.interrupt();
System.out.println("in main() - leaving");
}
}
上述代码示例将产生以下结果 -
in run() - about to work2()
in main() - interrupting other thread
in main() - leaving
C isInterrupted()=true
in run() - interrupted in work2()
