可以使用@RequestBody

@PostMapping("/add")
    public Result add(@RequestBody LogisticsDemand demand){
        if(demand.getRefreshTime()==null){
            demand.setRefreshTime(new Date());
        }
        int result = logisticsDemandService.insertdemand(demand,demand.getOrders());

        if(result>0){
            return Result.success("保存成功！");
        }else{
            return Result.error(501,"保存失败！");
        }

    }

时间格式的处理

@JsonFormat( pattern="yyyy-MM-dd HH:mm:ss")
    private Date timeLimit;

参考：

https://blog.csdn.net/hqbootstrap1/article/details/81407645

https://blog.csdn.net/qq906627950/article/details/79503801