Data integration based on EJB and XQuery

With the improvement of enterprise information level and the rapid development of the Internet,the isomerism question for each operation system database is more and more prominent.How to effectively take(advantage) of the history data and the integration carry-over system is becoming a big hotspot for integration field.This paper puts forward a solution project based on EJB and the XQuery isomerism data integration in order to effectively solve the isomerism for data distribution,to realize customer access and to maintain the (partial) system autonomy simultaneously.