一个简单的EJB实例.用DB2连接.JSP页面.很好用.供大家学习

				package salesdb;
				/**
				 * Local interface for Enterprise Bean: Purchase
				 */
				public interface PurchaseLocal extends javax.ejb.EJBLocalObject {
					/**
					 * Get accessor for persistent attribute: timestmp
					 */
					public java.lang.String getTimestmp();
					/**
					 * Set accessor for persistent attribute: timestmp
					 */
					public void setTimestmp(java.lang.String newTimestmp);
					/**
					 * This method was generated for supporting the relationship role named itemfk.
					 * It will be deleted/edited when the relationship is deleted/edited.
					 */
					public salesdb.ItemLocal getItemfk();
					/**
					 * This method was generated for supporting the relationship role named itemfk.
					 * It will be deleted/edited when the relationship is deleted/edited.
					 */
					public void setItemfk(salesdb.ItemLocal anItemfk);
					/**
					 * This method was generated for supporting the relationship role named locationfk.
					 * It will be deleted/edited when the relationship is deleted/edited.
					 */
					public salesdb.LocationLocal getLocationfk();
					/**
					 * This method was generated for supporting the relationship role named locationfk.
					 * It will be deleted/edited when the relationship is deleted/edited.
					 */
					public void setLocationfk(salesdb.LocationLocal aLocationfk);
				}