@RequestBody jackson解析复杂的传入值的一个坑;jackson解析迭代数组;jackson多重数组;jakson数组

一、实际开发的一个问题。

      传入一个json数组，数组中还嵌套数组，运用springboot+Jpa框架，@RequestBody注解传入数据

     Controller

 @ApiOperation(value = "添加订单", notes = "添加订单", httpMethod = "POST")
    @RequestMapping("/addOrder")
    public BaseResource addOrder(@RequestBody BaseSingleList baseSingleList) {
        log.info("controller传入数据:" + gson.toJson(baseSingleList));

        return orderService.addOrder(baseSingleList);

}

    传入对象的json格式

{
    "singleOrderList": [
        {
            "orderName": "wyy",
            "orderPhone": "186683812781",
            "contact": "wyy",
            "telephony": "187738122781",
            "provinceId": 123,
            "cityId": 1-302,
            "regionId": 19930203,
            "address": "33363",
            "userId": "32689d13465242dfad62ee1cdbf34d887",
            "serieId": "94",
            "trueTime": "2018-12-02",
            "overTime": "2019-12-01",
            "monthlyRent": 5000,
            "dateCount": 18,
            "packageId": "34ea0a3fb9a4496bab90488727ad6c57a09b",
            "total": "3000000",
            "ModularIdNum": [
                {
                    "itemId": "b20f1c33256ae64ad576bec51e85d821eae1",
                    "modularNum": 1
                }
            ],
            "isRentAndSell": 11110,
            "applicationArea": null,
            "remark": null,
            "instruPurpose": null
        }
    ]
}

二、传入后总是接收不到
      

"ModularIdNum": [
{
"itemId": "b20f1c33256ae64ad576bec51e85d821eae1",
"modularNum": 1
}
]
这段数组的值，本来以为是@RequestBody无法解析问题，最后发现是字段的大小写问题

ModularIdNum 建立在实体类中，是不能大写的，需要小写modularIdNum

"modularIdNum": [
{
"itemId": "b20f1c33256ae64ad576bec51e85d821eae1",
"modularNum": 1
}
]

实体类对应