public class Test {
public static void main(String[] args) {
ExecutorService executor = Executors.newSingleThreadExecutor();
FutureTask future = new FutureTask(new Callable() {
public URLConnection call() throws Exception {
// TODO Auto-generated method stub
//真正的任務在這里執行，這里返回類型為string，可以為任意類型的數據
URL realUrl = new URL("http://www.baidu.com");
//打開和url之間的鏈接
URLConnection connection = realUrl.openConnection();
connection.connect();
return connection;
}
});
executor.execute(future);
try{
URLConnection result = future.get(5000, TimeUnit.MILLISECONDS);
System.out.println(result.getURL());
}catch(InterruptedException e){
future.cancel(true); //取消任務
System.out.print("提前中斷");
}catch(ExecutionException e){
future.cancel(true); //取消任務
System.out.print("任務奔潰");
}catch (TimeoutException e) {
// TODO: handle exception
future.cancel(true); //取消任務
System.out.print("超時異常");
}finally {
executor.shutdown();
}
}
}