正则表达是

我想写个正则匹配http://192.168.0.26:8033/caigou/caigou_guanlizhaobiao_3.aspxhttp://192.168.0.26:8033/gongying/caigou_guanlizhaobiao_3.aspxhttp://192.168.0.26:8033/fukuan/caigou_guanlizhaobiao_3.aspx但不匹配
http://192.168.0.26:8033/webadmin/caigou_guanlizhaobiao_3.aspx就是中间匹配任何字母,但就不匹配webadmin这个怎么写呀?我是这么写的.*/(^(webadmin))/(.*)[_](.*)[_]([0-9]+)[.]aspx  不对呀,本来我是这么写的.*/(.*)/(.*)[_](.*)[_]([0-9]+)[.]aspx可这个全匹配了,该怎么写才能不匹配webadmin呀?难道我  ^(webadmin)写的不对??