日期:2014-05-19  浏览次数:20677 次

用myeclipse8.5自己生成的DAO可以直接使用吗?
Java code

package com.foraise.dao.impl;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.foraise.entity.Users;

/**
 * A data access object (DAO) providing persistence and search support for Users
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see com.foraise.entity.Users
 * @author MyEclipse Persistence Tools
 */

public class UsersDAO extends HibernateDaoSupport {
    private static final Log log = LogFactory.getLog(UsersDAO.class);
    // property constants
    public static final String UNAME = "uname";
    public static final String UPWD = "upwd";

    protected void initDao() {
        // do nothing
    }

    public void save(Users transientInstance) {
        log.debug("saving Users instance");
        try {
            getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

    public void delete(Users persistentInstance) {
        log.debug("deleting Users instance");
        try {
            getHibernateTemplate().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    public Users findById(java.lang.Integer id) {
        log.debug("getting Users instance with id: " + id);
        try {
            Users instance = (Users) getHibernateTemplate().get(
                    "com.foraise.entity.Users", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }

    public List findByExample(Users instance) {
        log.debug("finding Users instance by example");
        try {
            List results = getHibernateTemplate().findByExample(instance);
            log.debug("find by example successful, result size: "
                    + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }

    public List findByProperty(String propertyName, Object value) {
        log.debug("finding Users instance with property: " + propertyName
                + ", value: " + value);
        try {
            String queryString = "from Users as model where model."
                    + propertyName + "= ?";
            return getHibernateTemplate().find(queryString, value);
        } catch (RuntimeException re) {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List findByUname(Object uname) {
        return findByProperty(UNAME, uname);
    }

    public List findByUpwd(Object upwd) {
        return findByProperty(UPWD, upwd);
    }