springboot调用第三方接口json转换成对象

• 请求接口是一个比较常见的需求，接口返回一般是一个json类型，需要进行组装成对应的类，例

{
    "status_code": 200,
    "message": "success",
    "data": {
        "cost": 286.6933,
        "bom_list": [
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                "cInvName": "12.8 OLED 16 pulse BSM",
                "cInvStd": "254.02*231.8 mm  12.8寸 16 pulse BSM",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0,
                "parentCode": "20103.0155",
                "totalPrice": 0
            },
            {
                "InvCode": "45001.0056",
                "cInvName": "连接器后盖",
                "cInvStd": "56*56mm ABS",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 1.7522,
                "parentCode": "20103.0155",
                "totalPrice": 1.7522
            },
            {
                "InvCode": "45101.0036",
                "cInvName": "Aries 连接器密封圈",
                "cInvStd": "硫化硅胶65° 黑色",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0.67,
                "parentCode": "20103.0155",
                "totalPrice": 0.67
            },
            {
                "InvCode": "45505.0039",
                "cInvName": "Force ICS 泡棉支架L-新供应商",
                "cInvStd": "泡棉+双面胶（左）50.56*51.12*7.8mm",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0.85,
                "parentCode": "20103.0155",
                "totalPrice": 0.85
            },
            {
                "InvCode": "45505.0040",
                "cInvName": "Force ICS 泡棉支架R-新供应商",
                "cInvStd": "泡棉+双面胶（右）20.63*52*7.8m",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0.52,
                "parentCode": "20103.0155",
                "totalPrice": 0.52
            },
            {
                "InvCode": "45403.0011",
                "cInvName": "Force ICS导热片",
                "cInvStd": "24*12*1.2( YL-SP35-S，3w，白色)",
                "BaseQtyN": "4.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0.52,
                "parentCode": "20103.0155",
                "totalPrice": 2.08
            },
            {
                "InvCode": "45301.0012",
                "cInvName": "T10头M3*L6细牙螺丝",
                "cInvStd": "PM-T10-M3*L6MM，P=0.35，加磁，渗碳，蓝白锌，盐雾48h",
                "BaseQtyN": "6.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 0.0673,
                "parentCode": "20103.0155",
                "totalPrice": 0.4038
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            {
                "InvCode": "45401.0032",
                "cInvName": "Force ICS导电泡棉",
                "cInvStd": "10*10*10",
                "BaseQtyN": "4.000000",
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                "cInvDefine13": 0.13,
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            {
                "InvCode": "45801.0062",
                "cInvName": "FPC排线/12.8寸",
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                "CompScrap": ".000",
                "cInvDefine13": 5.34,
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                "totalPrice": 5.34
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            {
                "InvCode": "45801.0061",
                "cInvName": "FPC排线/12.8寸",
                "cInvStd": "一字型/50*20.5*0.3mm/40PIN/PIN距0.5mm/异面/带屏蔽层/带卡扣",
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                "totalPrice": 3.219
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            {
                "InvCode": "30101.0707",
                "cInvName": "PCBA",
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                "cInvDefine13": 0,
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                "totalPrice": 0
            },
            {
                "InvCode": "45504.0013",
                "cInvName": "静电袋",
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                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
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                "totalPrice": 0.45
            },
            {
                "InvCode": "45202.0052",
                "cInvName": "Pegasus ICS镁合金后盖",
                "cInvStd": "镁合金 AZ91D 240*262.22*77.13mm/银灰色",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "1.000000",
                "CompScrap": ".000",
                "cInvDefine13": 94.5,
                "parentCode": "20103.0155",
                "totalPrice": 94.5
            },
            {
                "InvCode": "45402.0004",
                "cInvName": "胶水",
                "cInvStd": "SiKa 698，300ml每支",
                "BaseQtyN": "1.000000",
                "BaseQtyD": "400.000000",
                "CompScrap": ".000",
                "cInvDefine13": 481.4157,
                "parentCode": "20103.0155",
                "totalPrice": 1.2035
            },
            {
                "InvCode": "45506.0050",
                "cInvName": "贴纸",
                "cInvStd": "100x100mm，白色合成纸",
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                "BaseQtyD": "8.000000",
                "CompScrap": ".000",
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            {
                "InvCode": "45506.0044",
                "cInvName": "标签纸",
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            {
                "InvCode": "45999.0020",
                "cInvName": "Force ICS保护膜",
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                "totalPrice": 0.78
            },
            {
                "InvCode": "41301.0616",
                "cInvName": "PCB",
                "cInvStd": "ICSCN15_MB_RD1_1/4层板/1.6mm/沉金/绿色哑光/108*132",
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                "CompScrap": ".000",
                "cInvDefine13": 0,
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                "totalPrice": 0
            },
            {
                "InvCode": "40201.0053",
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                "cInvStd": "47pF/50V/±5%/C0G/0603/Automotive",
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                "cInvDefine13": 0.0177,
                "parentCode": "30101.0707",
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            {
                "InvCode": "40201.0054",
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                "cInvStd": "4.7NF/50V/±10%/X7R/0603/Automotive",
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                "parentCode": "30101.0707",
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            {
                "InvCode": "40201.0037",
                "cInvName": "车规陶瓷电容",
                "cInvStd": "4.7uF/16V/±10%/X5R/0603/Automotive",
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                "cInvName": "车规陶瓷电容",
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                "totalPrice": 0.177
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                "InvCode": "40101.0077",
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            {
                "InvCode": "40101.0020",
                "cInvName": "车规电阻",
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                "InvCode": "40101.0123",
                "cInvName": "车规电阻",
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            {
                "InvCode": "40101.0051",
                "cInvName": "车规电阻",
                "cInvStd": "60.4R/1%/0805/Automotive",
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                "cInvName": "车规电阻",
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            {
                "InvCode": "40101.0091",
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            {
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                "InvCode": "40101.0094",
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                "InvCode": "40101.0076",
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                "InvCode": "40101.0095",
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                "InvCode": "40101.0015",
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            {
                "InvCode": "40104.0003",
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                "InvCode": "40301.0009",
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• 上面的接口返回，我们只需要将data中的数据封装成一个对象类，我们想封装一个list中的对象

public class BomCost implements Serializable {
    private String InvCode;
    private String cInvName;
    private String cInvStd;
    private BigDecimal BaseQtyN;
    private BigDecimal BaseQtyD;
    private BigDecimal CompScrap;
    private BigDecimal cInvDefine13;
    private String parentCode;
    private BigDecimal totalPrice;
}
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• 封装data中数据对应对象

public class MaterialCost {
    private BigDecimal cost;
    private List<BomCost> bom_list;
}
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• 现在将接口的data数据封装到对象MaterialCost 中

    public MaterialCost one(String code) throws JsonProcessingException {
        RestTemplate restTemplate = new RestTemplate();
        String url = "xxxxxxxx?code={?}";
        ResponseEntity<String> entity = restTemplate.getForEntity(url, String.class, code);
        JSONObject jsonArray = JSONArray.parseObject(entity.getBody());
        JSONObject data = jsonArray.getJSONObject("data");
        System.out.println(data.getBigDecimal("cost"));
        JSONArray bom_list = data.getJSONArray("bom_list");
        MaterialCost materialCost = new MaterialCost();
        materialCost.setCost(data.getBigDecimal("cost"));
        List<BomCost> bomCostList = new ArrayList<>();
        for (Object o : bom_list) {
            BomCost bomCost = new BomCost();
            JSONObject object = JSONArray.parseObject(o.toString());
            bomCost.setInvCode(object.getString("InvCode"));
            bomCost.setCInvName(object.getString("cInvName"));
            bomCost.setCInvStd(object.getString("cInvStd"));
            bomCost.setParentCode(object.getString("parentCode"));
            bomCost.setBaseQtyN(object.getBigDecimal("BaseQtyN"));
            bomCost.setBaseQtyD(object.getBigDecimal("BaseQtyD"));
            bomCost.setCompScrap(object.getBigDecimal("CompScrap"));
            bomCost.setCInvDefine13(object.getBigDecimal("cInvDefine13"));
            bomCost.setTotalPrice(object.getBigDecimal("totalPrice"));
            bomCostList.add(bomCost);
        }
        materialCost.setBom_list(bomCostList);
        return materialCost;
    }
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• 封装后的结果，跟接口数据一致