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jdk future
package aaa.bbb;
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;
public class Serv {
public static void main(String[] args) {
ExecutorService executorService = Executors.newSingleThreadExecutor();
FutureTask<String> future =new FutureTask<String>(new Callable<String>() {
public String call() throws Exception {
Thread.sleep(20000);
return "aaaaaaaaaaaaaaa";
}
});
executorService.execute( future);
try {
String s = future.get(1000, TimeUnit.MILLISECONDS);
System.out.println(s);
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
} catch (TimeoutException e) {
future.cancel(true);
e.printStackTrace();
}finally {
executorService.shutdown();
}
}
}
jdk future