utf8 转utf8mb4就可以支持emoji表情了
[root@db228 ~]# mysql mysql: Character set ‘utf8mb4‘ is not a compiled character set and is not specified in the ‘/usr/share/mysql/charsets/Index.xml‘ file
http://blog.csdn.net/amao1/article/details/34851533
原文：http://www.cnblogs.com/bass6/p/6165662.html