1.check nickname in case sensitive mode

luoo_user/src/main/java/com/luoo/user/dao/UserInfoDao.java

@@ -30,6 +30,7 @@ public interface UserInfoDao extends JpaRepository<UserInfo, String>, JpaSpecifi
 	@Query(value = "update tb_user_info set fans_count=fans_count+? where id = ?", nativeQuery = true)
 	void updatefanscount(int x, String friendid);
 
+	@Query(value = "select count(*) from tb_user_info where BINARY nick_name = ?1", nativeQuery = true)
 	public long countByNickName(String nickName);
 	
     @Query(value = "select * from tb_user_info where id in ?1 order by field(id,?1)", nativeQuery = true)