java - 已经捕获了异常，为什么运行几天后，程序还是发生了死锁呢？

Question

运行2天左右，就会发生一次死锁
线程都在外面等着，进入不了try块内部

    public  void  sapGoodsMove(String factoryCode, List<OdsRawMission> list, String oprType) {        try {            if (lock.tryLock(120, TimeUnit.SECONDS)) { // 尝试获取锁，最多等待120秒                try {                    List<OdsRawMission> orderRawMissions = new ArrayList<OdsRawMission>();                    orderRawMissions = odsRawOrderTaskMapper.queryTransferList311(factoryCode,list);                    log.info(factoryCode+"：交接完成待过账数据：{}条",orderRawMissions.size());                    if(orderRawMissions.size()>0){                        sap(sapHost,factoryCode,orderRawMissions);                    }                } catch (Exception e) {                    log.error("原材料交接过账异常",e);                }            } else {                log.info(factoryCode+"：未抢到锁：" + list);            }        } catch (InterruptedException e) {            Thread.currentThread().interrupt(); // 保持中断状态            log.error("获取锁时被中断", e);        } finally {            if (lock.isHeldByCurrentThread()) { // 确保只有持有锁时才解锁                lock.unlock();            }        }    }

这是调用处的代码1

 @Scheduled(cron = "0 0/15 * * * ?")    public void executeGoodsMove() {        log.info("task-raw-jiaojie-sap");        if (!Boolean.parseBoolean(enable)) {            return;        }        if (profile.indexOf("russia") < 0) {            String[] split = factoryCodes.split(",");            for (String factoryCode : split) {                ThreadPool.executeTask(() -> {                    try {                        dbCommon.execute(factoryCode);                        if (DictionaryConstant.PLANT_YDGC.contains(factoryCode)) {//印度工厂                            postHandoverServiceIndia.sapGoodsMove(factoryCode, null,"task");                        }                    } catch (Exception e) {                        e.printStackTrace();                        log.error("原材料交接 过账异常：{}", e.getMessage());                    }                });            }        }    }

Answer 1

可以试试把锁放在业务逻辑之后立刻释放

public  void  sapGoodsMove(String factoryCode, List<OdsRawMission> list, String oprType) {        try {            if (lock.tryLock(120, TimeUnit.SECONDS)) { // 尝试获取锁，最多等待120秒                try {                    List<OdsRawMission> orderRawMissions = new ArrayList<OdsRawMission>();                    orderRawMissions = odsRawOrderTaskMapper.queryTransferList311(factoryCode,list);                    log.info(factoryCode+"：交接完成待过账数据：{}条",orderRawMissions.size());                    if(orderRawMissions.size()>0){                        sap(sapHost,factoryCode,orderRawMissions);                    }                } catch (Exception e) {                    log.error("原材料交接过账异常",e);                } finally {                    lock.unlock(); // 业务逻辑处理后立即释放锁                }            } else {                log.info(factoryCode+"：未抢到锁：" + list);            }        } catch (InterruptedException e) {            Thread.currentThread().interrupt(); // 保持中断状态            log.error("获取锁时被中断", e);        }    }