json
1.json字符串转JavaBean
String msg2 = "{\"type\":123,\"data\":\"123\","+"\"currentTime\":\""+LocalDateTime.now()+"\"}";
rabbitMessage = JSONObject.parseObject(msg2, RabbitMessage.class);
SerializeWriter:相当于StringBuffer
JSONArray:相当于List<Object>
JSONObject:相当于Map<String, Object>
JSON反序列化没有真正数组,本质类型都是List<Object>