zoukankan      html  css  js  c++  java
  • 短学期所获之2

      经过了三天的学习,和老师的指导后,我们的客户信息管理系统已经初具模型。我们定义一些通用的dao接口即有利于我们对这些操作的规范,同时呢也算是一个通用的模板吧,这些是常常用的操作,减少了以后工作的开发工作量,同时也可以继承它增加新的操作。代码如下

    package com.crm.impl;

    import java.util.List;
    import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
    import com.crm.bean.Cust;
    import com.crm.dao.CustDao;

    public class CustDaoImpl extends HibernateDaoSupport implements CustDao {

    public List<Cust> findAllCust() {
    // TODO Auto-generated method stub
    String hql = "from Cust cust order by cust.id desc";
    return (List<Cust>)this.getHibernateTemplate().find(hql);
    }

    public Cust findCustomerById(Integer id) {
    // TODO Auto-generated method stub
    Cust cust = (Cust)this.getHibernateTemplate().get(Cust.class, id);
    return cust;
    }

    public void removeCustomer(Cust cust) {
    // TODO Auto-generated method stub
    this.getHibernateTemplate().delete(cust);
    }

    public void savaCustomer(Cust cust) {
    // TODO Auto-generated method stub
    this.getHibernateTemplate().save(cust);
    }

    @SuppressWarnings("unchecked")
    public List<Cust> findCustByCondition(Cust cust) {
    // TODO Auto-generated method stub
    StringBuffer strBuffer = new StringBuffer();
    String hql = "from Cust cust where 1=1 ";
    strBuffer.append(hql);
    if(cust == null){
    throw new NullPointerException("查询条件不能为空!");
    }
    if(!"".equals(cust.getCustname())){
    String custname = "and custname = '"+cust.getCustname()+"'";
    strBuffer.append(custname);
    }
    if(!"".equals(cust.getCustno())){
    String custno= "and custno = '"+cust.getCustno()+"'";
    strBuffer.append(custno);
    }
    if(!"".equals(cust.getTelephone())){

    String Telephone="and Telephone = '"+cust.getTelephone()+"' ";
    strBuffer.append(Telephone);
    }
    String orderBy = "order by cust.id desc";
    strBuffer.append(orderBy);
    List<Cust> custList = this.getHibernateTemplate().find(strBuffer.toString());
    //return (List<Cust>)this.getHibernateTemplate().find(strBuffer.toString());
    return custList;
    }

    public void updateCustomer(Cust cust) {
    // TODO Auto-generated method stub
    this.getHibernateTemplate().update(cust);
    }
    }

    有了这些接口以后,对于我们写action更加方便了,在此就不一一赘述所有的action了。

  • 相关阅读:
    [轉]javascript 的 location 各種用法
    [轉]PHP命名空间规则解析及高级功能
    [轉]虚拟机随谈(一):解释器,树遍历解释器,基于栈与基于寄存器
    [轉]深入理解SQL Server 2005 中的 COLUMNS_UPDATED函数
    [連接]JavaScript中链式调用之研习
    [轉]安装SQL SERVER 2008时,提示:服务SQLBrowser启动请求失败
    AS支除兩邊的空格
    [轉]详解UML六大关系(依赖、类属(继承)、关联、实现、聚合和组合)
    [轉]jQuery UI 关闭父窗口打开的Dialog
    [轉]让PHP支持像jQuery那样的链式操作
  • 原文地址:https://www.cnblogs.com/zhenghaoo/p/7106113.html
Copyright © 2011-2022 走看看