说明：  ejb3.0 in action的全部配套源代码，相信读过spring in action,ajax in action的读者应该已经领阅到action从书的魅力，这本书是最新的action从书，对于正在学习ejb3.0的同志无疑是最好的帮助，源代码与书配套，相得益彰。
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