java中高级写法

1.低级写法:

if (null != redisCacheService.get(MediaConstants.GUANGDIANTONG_YOUMI + CommonConstants.PLUS
                    + md5_idfa)) {

　　　　　　guandianTong =redisCacheService.get(MediaConstants.GUANGDIANTONG_YOUMI + CommonConstants.PLUS
                    + md5_idfa);
                redisCacheService.del(MediaConstants.GUANGDIANTONG_YOUMI + CommonConstants.PLUS + md5_idfa);
            }

高级写法:

if (null != (guandianTong = redisCacheService.get(MediaConstants.GUANGDIANTONG_YOUMI + CommonConstants.PLUS
                    + md5_idfa))) {
                redisCacheService.del(MediaConstants.GUANGDIANTONG_YOUMI + CommonConstants.PLUS + md5_idfa);
            }