从JsonNode获取fieldname(Get fieldname from JsonNode)

 我正在用Jackson解析一些json。 这个json的片段如下： 
 
},
"1/1/0": {
  "event": "status",
  "name": "Alarm Status",
  "type": "Alarm",
  "location": "Hall"
},
"1/1/1": {
  "event": "status",
  "name": "Smoke Alarm Status",
  "type": "Alarm",
  "location": "Hall"
},
 
 我很高兴能够为每个'对象'提取数据，但我很难获得每个对象的'名称'。 在上面的例子中，这将是'1/1/0'和'1/1/1'。 我这样做的方式如下： 
 
final JsonNode node = parser.parseToNode(configJson);
final JsonNode sensorsChild = node.get("sensors");

    for (JsonNode root : sensorsChild) {
                    final String event = root.get("event").asText();
                    final String name = root.get("name").asText();
                    final String type = root.get("type").asText();
                    final String location = root.get("location").asText();
    }
 
 我想要for循环中的另一行，如下所示： 
 
final String id = root.getNodeFieldName();
 
 这将分别产生'1/1/0'和'1/1/1'。 谢谢 

I am using Jackson to parse some json. An snippet from this json is as follows: 
 
},
"1/1/0": {
  "event": "status",
  "name": "Alarm Status",
  "type": "Alarm",
  "location": "Hall"
},
"1/1/1": {
  "event": "status",
  "name": "Smoke Alarm Status",
  "type": "Alarm",
  "location": "Hall"
},
 
I've happily managed to extract the data for each 'object', but I am struggling to obtain the 'name' for each object. In the example above, this would be '1/1/0' and '1/1/1'. I do so in the following way: 
 
final JsonNode node = parser.parseToNode(configJson);
final JsonNode sensorsChild = node.get("sensors");

    for (JsonNode root : sensorsChild) {
                    final String event = root.get("event").asText();
                    final String name = root.get("name").asText();
                    final String type = root.get("type").asText();
                    final String location = root.get("location").asText();
    }
 
I want another line in the the for loop which is something like: 
 
final String id = root.getNodeFieldName();
 
which would yield '1/1/0' and '1/1/1' respectively. Thanks

原文：https://stackoverflow.com/questions/40365334