DataSource Lookup

import java.sql.Connection;    import javax.naming.Context;  import javax.naming.InitialContext;  import javax.sql.DataSource;      Context ctx = new InitialContext();      // Tomcat Server에서 DataSource를 Lookup  DataSource ds = (DataSource) ctx.lookup("java:comp/env/jdbc/SpringDS");    // JBoss Server에서 DataSource를 Lookup  DataSource ds = (DataSource) ctx.lookup("java:/jdbc/SpringDS");      return ds.getConnection();

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