mysql添加数据问题，急、急、急
mysql数据
添加hibernate支持后用junit测试添加数据发现一个奇怪的问题，数据库里有两张表，一个商家表（参照表），一个商品表（外键表），测试之前有在数据表添加一些数据，第一次测试添加数据后在数据表里发现参照表的id居然跟着外键表的id一样，而不是自增的，不过就只有第一次添加数据是这种情况，之后又添加了好几条数据，参照表的id正常自增，哪位大神可以帮忙解释下原因吗？
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