线程池调用案例

Runnable:

    @Test
    public void testFixedThreadPool() {
        ExecutorService fixedThreadPool = Executors.newFixedThreadPool(10);
        for (int i = 0; i < 10; i++) {
            final int index = i;
            fixedThreadPool.execute(() -> {
                try {
                    log.info("newFixedThreadPool,index:{}", index);
                } catch (Exception e) {
                    log.info("newFixedThreadPool,index:{},ErrorMsg:{}", index, e.getMessage());
                }
            });
        }
        fixedThreadPool.shutdown();
        while(true){
            if(fixedThreadPool.isTerminated()){
                log.info("endd");
                break;
            }
        }
        log.info("end");
    }

Callable:

  @Test
    public void testCallable() {
        ExecutorService fixedThreadPool = Executors.newFixedThreadPool(10);
        List<Future<String>> resultList = Lists.newArrayList();
        for (int i = 0; i < 10; i++) {
            final int index = i;
            Future<String> future = fixedThreadPool.submit(() -> {
                try {
                    Thread.sleep(2000);
                    log.info("newFixedThreadPool,index:{}", index);
                } catch (Exception e) {
                    log.info("newFixedThreadPool,index:{},ErrorMsg:{}", index, e.getMessage());
                }
                return "success";
            });
            resultList.add(future);
        }
        resultList.forEach(x -> {
            try {
                log.info("result:{}", x.get());
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (ExecutionException e) {
                fixedThreadPool.shutdownNow();
                e.printStackTrace();
                return;
            }
        });
        log.info("end");
    }

参考：

https://blog.csdn.net/qq_31441667/article/details/78830395

https://blog.csdn.net/lisheng19870305/article/details/44747741

https://mp.weixin.qq.com/s/GvJvDtMYERHSTVWQaY9BEg

线程池调用案例

原文：https://www.cnblogs.com/hongdada/p/9662868.html