java函数执行超时强制返回

import java.lang.reflect.Method;import java.util.concurrent.Callable;import java.util.concurrent.ExecutionException;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.FutureTask;import java.util.concurrent.TimeUnit;import java.util.concurrent.TimeoutException;/** * @author Gergul 函数执行超时  * @Notice: 不能执行同名而且参数数量相同的函数！！ * @Usage: RunningTimeout.Run(类对象, 方法名字, 参数列表, 超时时间 单位毫秒); */public class RunningTimeout implements Callable<Object>{private Object ower = null;private String sMethodName = null;// private Class[] paramTypes;private Object[] paramValues;// 外部接口public static Object Run(Object ower, String sMethodName,Object[] paramValues, long timeout) throws InterruptedException,ExecutionException, TimeoutException{RunningTimeout rt = new RunningTimeout();return rt._run(ower, sMethodName, paramValues, timeout);}// 不允许newprivate RunningTimeout(){}//private Object _run(Object ower, String sMethodName, Object[] paramValues,long timeout) throws InterruptedException, ExecutionException,TimeoutException{this.ower = ower;this.sMethodName = sMethodName;this.paramValues = paramValues;// 关键代码ExecutorService executor = Executors.newSingleThreadExecutor();FutureTask<Object> future = (FutureTask<Object>)executor.submit(this);executor.execute(future);return future.get(timeout, TimeUnit.MILLISECONDS);}// 真正做事的地方@Overridepublic Object call() throws Exception{// TODO Auto-generated method stubMethod[] methods = ower.getClass().getDeclaredMethods();int n = methods.length;for (int i = 0; i < n; i++){if (sMethodName.equals(methods[i].getName())){Method thisMethod = methods[i];if (thisMethod.getParameterTypes().length == paramValues.length){// 检查参数的数量是否相同return methods[i].invoke(ower, paramValues);}}}throw new Exception("No this method.");}}