獲取JSON數組字符串的指定key的value值

JSON字符串數組形如

[{"condition":"trigger","data":{"deviceId":7697,"index":"1002","value":"1"}},{"condition":"periodOfTime","data":{"leftInterval":1542859200000,"rightInterval":1543550400000}},{"condition":"devicesStatus","data":[{"deviceId":7697,"index":"1005","value":"1"},{"deviceId":7697,"index":"1006","value":"3"}]}]

解析完成後是這樣的

現在要求如下，我們需要獲取deviceId的值，直接上代碼

public class Test {
    public static void main(String[] args) {
        System.out.println(gettrigger());
        System.out.println(getaction());
    }
    public static Object gettrigger(){
        String s = "[{\"condition\":\"trigger\",\"data\":{\"deviceId\":7697,\"index\":\"1002\",\"value\":\"1\"}},{\"condition\":\"periodOfTime\",\"data\":{\"leftInterval\":1542859200000,\"rightInterval\":1543550400000}},{\"condition\":\"devicesStatus\",\"data\":[{\"deviceId\":7697,\"index\":\"1005\",\"value\":\"1\"},{\"deviceId\":7697,\"index\":\"1006\",\"value\":\"3\"}]}]";
        JSONArray jsonArray = JSONArray.parseArray(s);
        for (Object object : jsonArray) {
            if (object instanceof JSONObject) {
                JSONObject jsonObject = (JSONObject) object;
                if (jsonObject.containsKey("condition")) {
                    String condition = jsonObject.getString("condition");
                    if (condition.equals("trigger")) {
                        JSONObject dataJSON = jsonObject.getJSONObject("data");
                        Object deviceDescribe = dataJSON.get("deviceId");
                        if (deviceDescribe == null) {
                            return null;
                        }
                        return deviceDescribe;
                    }
                }
            }
        }
        return null;
    }

最終結果如圖