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Map＜String,Object＞中Fastjson提取entrys对应的值

news 来源：原创 2025/5/20 3:15:38

今天在处理接口数据时，需要解析出对方传入的json数据，并需要取出其中一个字段的值来判断，记录下我的步骤，提供参考：

1.json数据准备

{
  "hrOrgUnit": "00000000-0000-0000-0000-000000000000CCE7AED4",
  "billState": "0",
  "number": "20250305-asfoq",
  "applyDate": "2025-03-05",
  "applier": "sOGnUMynTtCJvT5mm5ZzVIDvfe0=",
  "_entityName": "com.kingdee.eas.hr.affair.app.EmpEnrollBizBill",
  "entrys": [{
    "empNumber": "F002493",
    "empName": "张三",
    "IDCardNo": "41048219990709103X",
    "position": "6666693wQn/CrQLWFYTeIW8xi5HSuYS4=",
    "adminOrg": "ODFLt7rTRj++XjDzvF0pW8znrtQ=",
    "bizDate": "2025-03-05",
    "bizTime": "2025-03-05 00:00:00",
    "enrollDate": "2025-03-05",
    "nCell": "-15538223884",
    "sourceBillType": "400",
    "hrBizDefine": "DawAAAApC9DmaL7Z",
    "affairActionReason": "1wXho31/Tsi0LhiLKfCQ+JYRae4=",
    "variationReason": "sKSMJ3pDTQCtVNKkqB5WnOas36w=",
    "empType": "00000000-0000-0000-0000-000000000002A29E85B3",
    "useOldNumber": "0",
    "enrollAgain": "0",
    "isPrimary": "0",
    "sex": ""
  },
    {
      "empNumber": "F002494",
      "empName": "李四",
      "IDCardNo": "41048219990709103X",
      "position": "99999993wQn/CrQLWFYTeIW8xi5HSuYS4=",
      "adminOrg": "ODFLt7rTRj++XjDzvF0pW8znrtQ=",
      "bizDate": "2025-03-05",
      "bizTime": "2025-03-05 00:00:00",
      "enrollDate": "2025-03-05",
      "nCell": "-15538223884",
      "sourceBillType": "400",
      "hrBizDefine": "DawAAAApC9DmaL7Z",
      "affairActionReason": "1wXho31/Tsi0LhiLKfCQ+JYRae4=",
      "variationReason": "sKSMJ3pDTQCtVNKkqB5WnOas36w=",
      "empType": "00000000-0000-0000-0000-000000000002A29E85B3",
      "useOldNumber": "0",
      "enrollAgain": "0",
      "isPrimary": "0",
      "sex": ""
    }],
  "id": ""
}

上面的是json数据，需要取出 position 字段的值

2.采用 fastjson 的组件库进行处理

上述的json 对应的是 param.get("obj").toString()

// 将JSON字符串解析为JSONObject
        JSONObject jsonObject=JSON.parseObject(param.get("obj").toString());
        System.out.println(jsonObject);

        //获取需要的json数组，将entrys获取
        JSONArray jsonArray =jsonObject.getJSONArray("entrys");
        System.out.println(jsonArray);
        System.out.println(jsonArray.size());

        //遍历出entrys里面的数据
        for (int i = 0; i < jsonArray.size(); i++) {
            JSONObject entry = jsonArray.getJSONObject(i);
            System.out.println(entry);
            //根据具体的key取值
            String position = entry.getString("position");
            System.out.println("取出对应的值:"+position);
        }