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   源码介绍

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java web小例子

package wlj.daoImpl;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import wlj.common.CreateUUID;
import wlj.dao.CustomerDao;
import wlj.data.CustomerData;
import wlj.entity.Customer;

@Transactional
@Repository
public class CustomerDaoImpl implements CustomerDao {
	@PersistenceContext
	EntityManager em;
	private static Logger loger = Logger.getLogger(CustomerDaoImpl.class);

	public CustomerData saveCustomer(CustomerData cd) {
		try {
			Customer c = new Customer();
			c.setData(cd);
			String userID = CreateUUID.createUUID();
			c.setId(userID);
			em.persist(c);
			cd.setEntity(c);
			return cd;
		} catch (Exception e) {
			loger.debug("保存用户出错................................"  e   "...................................");
			return null;
		}
		
	}

	
}