code: public static void useAsDataTransfer(IContainerFactory containerFactory) {
  		useAsDataTransfer(new com.jfinal.plugin.activerecord.dialect.MysqlDialect(), containerFactory, new com.jfinal.plugin.activerecord.cache.EhCache());
  	}
docs: 分布式场景下指定 IContainerFactory，并默认使用 MysqlDialect、EhCache
  @see #useAsDataTransfer(Dialect, IContainerFactory, ICache)