怎么将这段复杂的JSON字符串转换成实体类，每次转都报错？

Question

复杂的字符串

 String jsonStr = "{'PACKAGE':{'DATA':{'RECORD':{'MSG':'接口调用成功','NO':'1','CODE':'10','CONDITION':{'NO':'1','exp':''},'RESULT':[{'NUM':'1','ROW':[{'ZZBF_RQ':'2022-08-25 17:08:01','DZZZMC':'户籍事项证明','GMSFHM':'110102198010272321','DZZZBZ':'1.2.156.3005.2.11100000000013127D082.110002002000.0822022082500000002.001.L','DZZZLXDM':'11100000000013127D082','DZZZYXX_PDBZ':'1','ZMRQ':'2022-08-25','ZZBFJG_DWMC':'北京市西城分局西长安街派出所','INDEX':'1','YYFW_YWLSH':'54347563-AD16-48EB-B3AC-E9FB631988A9','ZAGLDZZZBH':'0822022082500000002'},{'NUM':1,'ROW':[{'DZWJNR':'UEAAgACAAAiRAAA','INDEX':1}],'SID':'05070400'}],'SID':'05010402'}]}},'PACKAGEHEAD':{'MSG':'接口调用成功','SYDW_GAJGJGDM':'010300000000','CODE':'10','SYDW_GAJGMC':'北京市公安局西城分局','FSSJ':'20110112110221','SYR_XM':'李四','SYR_GMSFHM':'110102198010272324','BBH':'3.00'}}}";

完整的代码，

package com.ssoft.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.annotation.JSONField;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @date 2022/2/16
 */
@Data
@Slf4j
public class ResultDownloadEntity implements ResultInterface {
    @JSONField(name = "PACKAGE")
    PACKAGE PACKAGE=new PACKAGE();

    @Data
    public static class PACKAGE {

        @JSONField(name = "PACKAGEHEAD")
        PACKAGEHEAD PACKAGEHEAD = new PACKAGEHEAD();

        @JSONField(name = "DATA")
        ResultEntity.PACKAGE.DATA DATA=new ResultEntity.PACKAGE.DATA();

        @Data
        public static class PACKAGEHEAD {
            @JSONField(name = "BBH")
            String BBH;

            @JSONField(name = "SYDW_GAJGJGDM")
            String SYDW_GAJGJGDM;

            @JSONField(name = "SYDW_GAJGMC")
            String SYDW_GAJGMC;

            @JSONField(name = "SYR_XM")
            String SYR_XM;

            @JSONField(name = "SYR_GMSFHM")
            String SYR_GMSFHM;

            @JSONField(name = "FSSJ")
            String FSSJ;

            @JSONField(name = "SJBBH")
            String SJBBH;

            @JSONField(name = "CODE")
            String CODE = "10";

            @JSONField(name = "MSG")
            String MSG = "接口调用成功";

        }

        @Data
        public static class DATA {


            @JSONField(name = "RECORD")
            RECORD RECORD = new RECORD();

            @Data
            public static class RECORD {
                @JSONField(name = "CODE")
                String CODE = "10";

                @JSONField(name = "NO")
                String NO="1";

                @JSONField(name = "MSG")
                String MSG = "接口调用成功";

                @JSONField(name = "CONDITION")
                CONDITION CONDITION = new CONDITION();

                @JSONField(name = "RESULT")
                List<Object> RESULT = new ArrayList<>();

                @Data
                public static class CONDITION {
                    @JSONField(name = "NO")
                    String NO = "1";

                    @JSONField(name = "exp")
                    String exp="";
                }

            }
        }

    }

    public static JSONObject decodeRow(String jsonStr) {
        JSONObject recordJSON = new JSONObject();
        try {

            JSONObject jsonObject = JSON.parseObject(jsonStr);
            JSONObject packageJSON = jsonObject.getJSONObject("PACKAGE");
            JSONObject dataJSON = packageJSON.getJSONObject("DATA");

            recordJSON = dataJSON.getJSONObject("RECORD");

            JSONArray resultArray = recordJSON.getJSONArray("RESULT");

            JSONObject rowQuery = (JSONObject) resultArray.get(0);


//            log.info(rowQuery.toJSONString());
//            log.info(dataJSON.toJSONString());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return recordJSON;
    }

    public static void main(String[] args) {
        JSONObject jsonObject = new JSONObject();
        String jsonStr = "{'PACKAGE':{'DATA':{'RECORD':{'MSG':'接口调用成功','NO':'1','CODE':'10','CONDITION':{'NO':'1','exp':''},'RESULT':[{'NUM':'1','ROW':[{'ZZBF_RQ':'2022-08-25 17:08:01','DZZZMC':'户籍事项证明','GMSFHM':'110102198010272321','DZZZBZ':'1.2.156.3005.2.11100000000013127D082.110002002000.0822022082500000002.001.L','DZZZLXDM':'11100000000013127D082','DZZZYXX_PDBZ':'1','ZMRQ':'2022-08-25','ZZBFJG_DWMC':'北京市西城分局西长安街派出所','INDEX':'1','YYFW_YWLSH':'54347563-AD16-48EB-B3AC-E9FB631988A9','ZAGLDZZZBH':'0822022082500000002'},{'NUM':1,'ROW':[{'DZWJNR':'UEAAgACAAAiRAAA','INDEX':1}],'SID':'05070400'}],'SID':'05010402'}]}},'PACKAGEHEAD':{'MSG':'接口调用成功','SYDW_GAJGJGDM':'010300000000','CODE':'10','SYDW_GAJGMC':'北京市公安局西城分局','FSSJ':'20110112110221','SYR_XM':'李四','SYR_GMSFHM':'110102198010272324','BBH':'3.00'}}}";
        try {
            ResultDownloadEntity bean = JSONObject.parseObject(jsonStr, ResultDownloadEntity.class);
            log.info("ROW == " + bean.getPACKAGE().getDATA().getRECORD().getRESULT());

        } catch (Exception e) {
            e.printStackTrace();
        }

//        decodeRow(jsonStr);
    }

}

Answer 1

你这个就不是json字符串吧. json只能使用双引号, 单引号是非法的.

Answer 2

    public static void main(String[] args) {
        String jsonStr = "{'PACKAGE':{'DATA':{'RECORD':{'MSG':'接口调用成功','NO':'1','CODE':'10','CONDITION':{'NO':'1','exp':''},'RESULT':[{'NUM':'1','ROW':[{'ZZBF_RQ':'2022-08-25 17:08:01','DZZZMC':'户籍事项证明','GMSFHM':'110102198010272321','DZZZBZ':'1.2.156.3005.2.11100000000013127D082.110002002000.0822022082500000002.001.L','DZZZLXDM':'11100000000013127D082','DZZZYXX_PDBZ':'1','ZMRQ':'2022-08-25','ZZBFJG_DWMC':'北京市***出所','INDEX':'1','YYFW_YWLSH':'54347563-AD16-48EB-B3AC-E9FB631988A9','ZAGLDZZZBH':'0822022082500000002'},{'NUM':1,'ROW':[{'DZWJNR':'UEAAgACAAAiRAAA','INDEX':1}],'SID':'05070400'}],'SID':'05010402'}]}},'PACKAGEHEAD':{'MSG':'接口调用成功','SYDW_GAJGJGDM':'010300000000','CODE':'10','SYDW_GAJGMC':'北京市公安局西城分局','FSSJ':'20110112110221','SYR_XM':'李四','SYR_GMSFHM':'1101***72324','BBH':'3.00'}}}";
        final Map<String,Map> map = JSON.parseObject(jsonStr, Map.class);
        final Object data = map.get("PACKAGE").get("DATA");
        Map<String,Map> recordMap = null;
        if (data instanceof Map){
            recordMap = (Map<String, Map>) data;
        }
        if (MapUtils.isEmpty(recordMap)){
            return;
        }
        final Object result = recordMap.get("RECORD").get("RESULT");
        System.out.println("JSON.toJSONString(result) = " + JSON.toJSONString(result));
    }

主要我没跟你弄那个实体，自己再解析下吧，还要不要随便泄露真实数据。

Answer 3

1. 报错信息是什么？
2. JsonProperty 是 jacskon 的，JSONObject 是 fastjson 的，要么用 jacskon 解析，要么换 fastjson 的注解