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http://www.oracle.com/technetwork/cn/articles/index.htmlhttp://www.cnblogs.com/sgsoft/archive/2004/10/12/51136.htmlhttp://www.cnblogs.com/Clamphammer/archive/2005/05/12/154319.htmlhttp://www.cnblogs.com/god25/archive/2007/06/05/772345.html 阅读全文