java - 从数据库查询重新格式化 json

Question

这是我现在的

[{
    "year": "2015",
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "amt": "2",
    "org_id": "4",
    "suborg_id": "24"
}, {
    "year": "2016",
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "amt": "1",
    "org_id": "4",
    "suborg_id": "24"
}]

我想要这种格式

[{
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "suborg_id": "24",
    "org_id": "4",
    "Year": [{
        "year": "2015",
        "amt": "2"
    }, {
        "year": "2016",
        "amt": "1"
    }]
}]

以下是我获取当前值的方法:

List<String> list = new ArrayList<String>();
while (rs2.next()) {
    JSONObject json = new JSONObject();

    if (!rs2.getString("suborg_id").isEmpty()) {
        json.put("org_name", org_name);
        json.put("year", year);
        json.put("suborg_name", suborg_name);
        json.put("amt", amt);
        json.put("org_id", org_id);
        json.put("suborg_id", suborg_id);
    }

    finaljson2.put(counter2, json.toString());
    counter2++;
    list.add("" + json + "");
}

//out.println("[" + finaljson2.toString() + "]");
out.println(list);

我放入 if 语句，希望它能够将相同的 suborg_id 分组

更新

在推送到 json 之前尝试将年份和金额添加到新数组

List<String> list = new ArrayList<String>();
while (rs2.next()) {
    JSONObject json = new JSONObject();
    JSONObject json1 = new JSONObject();

    if (!rs2.getString("suborg_id").isEmpty()) {

        json.put("year", year);
        json.put("amt", amt);


        json.put("org_name", org_name);
        json.put("suborg_name", suborg_name);
        json.put("org_id", org_id);
        json.put("suborg_id", suborg_id);
        json.put("year", json1);
    }

    finaljson2.put(counter2, json.toString());
    counter2++;
    list.add("" + json + "");
}

//out.println("[" + finaljson2.toString() + "]");
out.println(list);

我的输出如下:

[{
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "org_id": "4",
    "suborg_id": "24",
    "year": {
        "year": "2015",
        "amt": "2"
    }
}, {
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "org_id": "4",
    "suborg_id": "24",
    "year": {
        "year": "20165",
        "amt": "1"
    }
}]

我的目标是获得格式

[{
    "org_name": "MOOE",
    "suborg_name": "Forms Expenses",
    "suborg_id": "24",
    "org_id": "4",
    "Year": [{
        "year": "2015",
        "amt": "2"
    }, {
        "year": "2016",
        "amt": "1"
    }]
}]

Answer 1

试试这个

  List<String> list = new ArrayList<String>();
  while (rs2.next()) {
  JSONObject json = new JSONObject();
 if (!rs2.getString("suborg_id").isEmpty()) {
 json.put("org_name", org_name);
 json.put("suborg_name", suborg_name);
 json.put("org_id", org_id);
 json.put("suborg_id", suborg_id);
 json.put("year");  

 [{
   json.put("year", year);  
   json.put("amt", amt);
  },{
   json.put("year", year);  
  json.put("amt", amt);
  }]

 }
finaljson2.put(counter2, json.toString());
counter2++;
list.add("" + json + "");
}