基于Jdk1.5可中止制定线程的线程池简单扩展

package org.sl.threadPool;import org.apache.log4j.Logger;/** * 表示一个线程任务 * @author shanl * */abstract public class Task implements Runnable{static Logger logger = Logger.getLogger(Task.class);private boolean running = true;synchronized public void stop(){// this.running = false;}public void run() {while(running){work();}}/** * 线程内需要执行工作 */abstract public void work();}

 

package org.sl.threadPool;import java.util.HashMap;import java.util.Map;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import org.apache.log4j.Logger;/** * 任务执行者 * @author shanl * */public class TaskExecuter {static Logger logger = Logger.getLogger(TaskExecuter.class);private Map<Integer,Task> taskQueue = null;private ExecutorService threadQueue = null;private int taskCount = 0;public TaskExecuter(int nThreads){taskQueue = new HashMap<Integer,Task>(nThreads);threadQueue = Executors.newFixedThreadPool(nThreads);}public TaskExecuter(){this(50);}/** * 执行一个任务 * @param task * @return 返回这个任务在队列中的序号,可以通过此序号中止任务。 */public int executeTask(Task task){taskQueue.put(taskCount, task);threadQueue.execute(task);return taskCount;}/** * 中止指定序号所对应的任务 * @param id */public void stopTask(int id){Task task = taskQueue.remove(id);if(null != task) {task.stop();logger.debug("TaskQueue.stopTask(),id:" + id);}}}