jakcson转换

Java对象转换为json

RbUser rbUser = userMapper.getRbUserByPhone("12356454");
        System.out.println(rbUser.getUserName());
        System.out.println(UUID.randomUUID().toString());
        ObjectMapper objectMapper = new ObjectMapper();
        String string = objectMapper.writeValueAsString(rbUser);

字符串转换为Java对象

String msg = stringRedisTemplate.opsForValue().get("user");
          System.out.println(msg);
        JSONObject jsonObject = JSONObject.parseObject(msg);
        RbUser user = jsonObject.toJavaObject(jsonObject,RbUser.class );
        System.out.println("用户名："+user.getUserName());