Java中数据库的Json对象

如果要从数据库提取数据并自己构造JSON对象，则可以执行以下操作：

JsonArray jArray = new JsonArray();while (result.next()){    String  type_json=result.getString("type");    String name_json=result.getString("name");    String id_json=result.getString("demo");    JsonObject jObj = new JsonObject();    jobj.put("id", id_json);    jobj.put("type", type_json);    jobj.put("name", name_json);    jArray.put(jObj);}JsonObject jObjDevice = new JsonObject();jObjDevice.put("device", jArray);JsonObject jObjDeviceList = new JsonObject();jObjDevice.put("devicelist", jObjDevice );

现在

jObjDeviceList