spring项目对某条单据进行加锁处理的方法

let orderLock = {
    orderLock:(viewmodel, id, billType)=>{
        var url = '/orderLock/lock?domainKey='+viewmodel.getDomainKey();
        var proxy = cb.rest.DynamicProxy.create({
            ensure: {url: url, method: 'POST'}
        });
        let data = {"id":id, "billType": billType, "ttl": 60*60*12}
        proxy.ensure(data, function (err, result) {
            if (err) {
                cb.utils.alert(err.message, 'error');
            } else {
                cb.utils.alert(result, 'info');
                if(viewmodel.originalViewMeta.cBillNo && viewmodel.originalViewMeta.cBillNo=="02924ed1"){
                    //维修领料页面进入
                    if(result.indexOf('成功') <= 0){
                          viewmodel.biz.action().common.browse(viewmodel)
                          viewmodel.biz.action().common.setMode(viewmodel,"browse");  
                          
                    }
                }else{
                    if(result.indexOf('成功') <= 0){
                        viewmodel.biz.action().common.browse(viewmodel)
                    }
                }
                
            }
        })
    },

    unOrderLock:(viewmodel, id, billType)=>{
        var url = '/orderLock/unLock?domainKey='+viewmodel.getDomainKey();
        var proxy = cb.rest.DynamicProxy.create({
            ensure: {url: url, method: 'POST'}
        });
        var data = {"id":id, "billType": billType}
        proxy.ensure(data, function (err, result) {
            if (err) {
                cb.utils.alert(err.message, 'error');
            } else {
                cb.utils.alert(result, 'info');
            }
        })
    }
}
export default orderLock

@RestController
@RequestMapping("/orderLock")
@Slf4j
public class OrderLockController extends BaseController {
    @Autowired
    private GmsRedisUtil gmsRRedisUtil;
    @Autowired
    private UserInfoService userInfoService;

    private String ENGINE_NO = "afterservice";

    /**
     * 加锁
     */
    @PostMapping(value = "/lock")
    public void orderLock(@RequestBody OrderLockDTO orderLockDTO, HttpServletResponse response) {
        try{
            String result;
            UserExtendDto userExtendDto = userInfoService.getUserExtend();
            String nowDate = DateUtil.dateFormat(PartCommonConstants.dateTimeFormatter, LocalDateTime.now());
            String key = ENGINE_NO + "_" + orderLockDTO.getBillType() + "_" + orderLockDTO.getId();
            String message = "锁定人["+userExtendDto.getStaffName()+"]锁定时间["+nowDate+"]";
            Boolean flag = gmsRRedisUtil.tryGetLock(key, message, orderLockDTO.getTtl(), 2);
            if(flag){
                result = "加锁成功!";
            }else{
                String lockValue = gmsRRedisUtil.getObject(key);
                if(lockValue.contains(userExtendDto.getStaffName())){
                    result = "加锁成功!原锁定用户["+userExtendDto.getStaffName()+"]进入单据!";
                }else{
                    result = "加锁失败!单据已被锁定,"+lockValue;
                }
            }
            renderJson(response, ResultMessage.data(result,false));
        }catch(Exception e){
            renderJson(response, ResultMessage.error(e.getMessage()));
            log.error("加锁失败:{}",e);
        }
    }

1.setIfAbsent(K var1, V var2);
如果key不存在则新增，key存在不做任何操作
redisTemplate.opsForValue().setIfAbsent("BBB", "好的");

2.setIfAbsent(K var1, V var2, long var3, TimeUnit var5)
如果key不存在则新增，同时设置过期时间，key存在不做任何操作。
redisTemplate.opsForValue().setIfAbsent("AAA", "好的", 1, TimeUnit.MINUTES);

3.setIfAbsent(K key, V value, Duration timeout)
如果key不存在则新增，同时设置过期时间，key存在不做任何操作。
redisTemplate.opsForValue().setIfAbsent("BBB", "好的", Duration.ofMinutes(1));