http://www.utcsoft.com/product2.asp?id=112
http://www.utcsoft.com/download.asp?cid=112
http://www.eseals.cn/sealserver/doc/networld.htm
http://baike.baidu.com/view/15288.htm?fr=aladdin
http://baike.sogou.com/v17837.htm
http://www.cnblogs.com/yjf512/archive/2010/10/29/1864399.html
http://www.cnblogs.com/liping13599168/archive/2010/12/27/1917385.html
http://baike.baidu.com/view/507222.htm
2014/08/19
http://jusesgod.iteye.com/blog/1143477
http://my.oschina.net/yotoo/blog/265571
http://www.blogjava.net/relax/archive/2009/09/18/295587.html
http://blog.youkuaiyun.com/robinpipi/article/details/7655388
http://sishuok.com/forum/blogPost/list/2485.html
http://www.cnblogs.com/hongten/archive/2011/07/20/2111773.html
http://blog.163.com/wzi_xiang/blog/static/659829612009113163631883/
http://www.2cto.com/database/201202/118596.html
http://www.2cto.com/database/201202/118595.html
http://www.jb51.net/web/19216.html
http://www.blogjava.net/zks518/archive/2011/08/12/356409.html
http://www.2cto.com/database/201202/118594.html
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