import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class Test {
public static void main(String[] args) {
ThreadPoolExecutor executor = new ThreadPoolExecutor(5, 10, 200, TimeUnit.MILLISECONDS,
new ArrayBlockingQueue<Runnable>(2), new RejectedExecutionHandler() {
public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
if (!executor.isShutdown()) {
try {
System.out.println("full");
executor.getQueue().put(r);
} catch (InterruptedException e) {
// should not be interrupted
}
}
}
});
for (int i = 0; i < 15; i++) {
MyTask myTask = new MyTask(i);
executor.execute(myTask);
System.out.println(new Date() + ",线程池中线程数目：" + executor.getPoolSize() + "，队列中等待执行的任务数目：" + executor.getQueue().size()
+ "，已执行玩别的任务数目：" + executor.getCompletedTaskCount());
}
executor.shutdown();
}
}
class MyTask implements Runnable {
private int taskNum;
public MyTask(int num) {
this.taskNum = num;
}
public void run() {
System.out.println(new Date() + ",正在执行task " + taskNum);
try {
Thread.currentThread().sleep(4000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(new Date() + ",task " + taskNum + "执行完毕");
}
}