如何取出JSON中的特定信息 ES数据库举例

如下是一条ES数据库中的信息

• {
  “_index”: “log_access”,
  “_type”: “access”,
  “_id”: “397”,
  “_version”: 1,
  “_score”: 1,
  “_source”: {
  “method”: “list”,
  “create_time”: 039,
  “ip”: “19.6.2.30”,
  “begin_nao_time”: 3689,
  “params”: “{“sorts”:[“eventTime:desc”]}”,
  “httpMethod”: “GET”,
  “uri”: “/list/0/20”,
  “url”: “http://19.6.2.30:9510/list/0/20“,
  “response”: “”,
  “interval”: 70,
  “class”: “DataController”,
  “end_nao_time”: 230
  }
  }

取出httpMethod为例

 String result = getJsonObj.getJSONObject("_source").getJSONObject("httpMethod")

result为”GET”