@ApiOperation(value = "首页统计")
    @GetMapping("/statistics")
    public UnifyResponse<List<BusinessStatisticsVO>> statistics() throws Exception {
        StatisticsPermissionQuery permissionQuery = getPermission();
        ThreadPoolExecutor executor = ExecutorBuilder.create()
                // 核心线程数
                .setCorePoolSize(4)
                // 最大线程数
                .setMaxPoolSize(8)
                // 线程空闲时间
                .setKeepAliveTime(60, TimeUnit.SECONDS)
                // 工作队列，容量20
                .setWorkQueue(new LinkedBlockingQueue<>(20))
                // 拒绝策略
                .setHandler(new ThreadPoolExecutor.AbortPolicy())
                .build();
        CompletableFuture<BusinessStatisticsVO> customerStatistics = CompletableFuture.supplyAsync(() -> customerService.customerStatistics(permissionQuery), executor);
        CompletableFuture<BusinessStatisticsVO> orderStatistics = CompletableFuture.supplyAsync(() -> orderService.orderStatistics(permissionQuery), executor);
        CompletableFuture<BusinessStatisticsVO> quoteStatistics = CompletableFuture.supplyAsync(() -> quoteService.quoteStatistics(permissionQuery), executor);
        CompletableFuture<BusinessStatisticsVO> clueStatistics = CompletableFuture.supplyAsync(() -> clueService.clueStatistics(permissionQuery), executor);
        CompletableFuture.allOf(customerStatistics, orderStatistics, quoteStatistics, clueStatistics).join();
        List<BusinessStatisticsVO> businessStatisticsVOList = new ArrayList<>();
        //客户统计
        businessStatisticsVOList.add(customerStatistics.get());
        //订单统计
        businessStatisticsVOList.add(orderStatistics.get());
        //报价统计
        businessStatisticsVOList.add(quoteStatistics.get());
        //线索统计
        businessStatisticsVOList.add(clueStatistics.get());
        return new UnifyResponse<>(businessStatisticsVOList);
    }

• 使用Hutool内置快速方法：简单场景下快速创建。

  ThreadPoolExecutor quickExecutor = ThreadUtil.newExecutor(5, 10, 100);