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(tng) (tng) (tng)
(tng) (tng) 源程序下?/a>
(tng) (tng) 至于Hibernate, Structs, MySQL的具体用法我׃说了(jin),你可以看源程序来查看详细内容.我们来看看分应用的相关内容.
(tng)架构上和Spring JPetStore没多区? 只是没用Spring框架所以Structs中的UserdisplayAction中必new出各个对象ƈ完成它们之间的关? q就是Spring IOC可自动完成的功能. 它也是三?表现?Structs), (tng)业务?POJO), 数据?Hibernate讉KMySQL). (tng)同样业务层通过DAO接口(UserDAO)来访问数据库, 讉K数据库的通过Hibernate(在UserDAOImpl中实?. (tng)q一ơ分要在业务层中来实现, 业务层同样向表现层提供一个Facada(门面, (tng) UserManager接口), 来访问业? 在UserManagerImpl中通过调用UserDAO来访问数? 调用POJO来实现分功? 看以下关键代?
先看POJO的分布类?
Page.java
package org.flyware.util.page;
public class Page { (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) private boolean hasPrePage; (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) private boolean hasNextPage; (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) private int everyPage; (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) private int totalPage; (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) private int currentPage; (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) private int beginIndex; (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) public Page(){
(tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) } (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) public Page(int everyPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.everyPage = everyPage;
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) /** The whole constructor */
(tng) (tng) (tng) public Page(boolean hasPrePage, boolean hasNextPage, (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) int everyPage, int totalPage,
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) int currentPage, int beginIndex) {
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.hasPrePage = hasPrePage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.hasNextPage = hasNextPage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.everyPage = everyPage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.totalPage = totalPage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.currentPage = currentPage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.beginIndex = beginIndex;
(tng) (tng) (tng) }
(tng) (tng) (tng) (tng) (tng) (tng)...... (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) public int getTotalPage() {
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return totalPage;
(tng) (tng) (tng) } (tng)
(tng) (tng) (tng)
(tng) (tng) (tng) public void setTotalPage(int totalPage) {
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.totalPage = totalPage;
(tng) (tng) (tng) }
(tng) (tng) (tng)
}
PageUtil.java(用来构造Page实例 相当于page工厂)
package org.flyware.util.page;
public class PageUtil {
(tng) (tng) (tng)
(tng) (tng) (tng) private static final Log logger = LogFactory.getLog(PageUtil.class); (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) public static Page createPage(Page page, int totalRecords){ (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return createPage(page.getEveryPage(), page.getCurrentPage(), totalRecords);
(tng) (tng) (tng) } (tng)
(tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) public static Page createPage(int everyPage, int currentPage, int totalRecords){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) everyPage = getEveryPage(everyPage); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) currentPage = getCurrentPage(currentPage); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) int beginIndex = getBeginIndex(everyPage, currentPage); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) int totalPage = getTotalPage(everyPage, totalRecords); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) boolean hasNextPage = hasNextPage(currentPage, totalPage); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) boolean hasPrePage = hasPrePage(currentPage);
(tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return new Page(hasPrePage, hasNextPage, (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) everyPage, totalPage,
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) currentPage, beginIndex);
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) private static int getEveryPage(int everyPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return everyPage == 0 ? 10 : everyPage;
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) private static int getCurrentPage(int currentPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return currentPage == 0 ? 1 : currentPage;
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) private static int getBeginIndex(int everyPage, int currentPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return (currentPage - 1) * everyPage;
(tng) (tng) (tng) }
(tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) private static int getTotalPage(int everyPage, int totalRecords){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) int totalPage = 0;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) if(totalRecords % everyPage == 0)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) totalPage = totalRecords / everyPage;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) else
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) totalPage = totalRecords / everyPage + 1 ;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return totalPage;
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) private static boolean hasPrePage(int currentPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return currentPage == 1 ? false : true;
(tng) (tng) (tng) }
(tng) (tng) (tng)
(tng) (tng) (tng) private static boolean hasNextPage(int currentPage, int totalPage){
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return currentPage == totalPage || totalPage == 0 ? false : true;
(tng) (tng) (tng) }
(tng) (tng) (tng)
}
业务实现c?UserManaerImpl.java
package com.linan.service.impl;
public class UserManagerImpl implements UserManager {
(tng) (tng) (tng)
(tng) (tng) (tng) private UserDAO userDAO;
(tng) (tng) (tng) (tng) (tng) (tng) public void setUserDAO(UserDAO userDAO) { (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) this.userDAO = userDAO; (tng)
(tng) (tng) (tng) } (tng)
(tng) (tng)
//提供业务Ҏ(gu)
public Result listUser(Page page) throws HibernateException,
ObjectNotFoundException { (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) int totalRecords = userDAO.getUserCount(); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) if(totalRecords == 0) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) throw new ObjectNotFoundException("userNotExist", null);
(tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) page = PageUtil.createPage(page, totalRecords); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) List users = userDAO.getUserByPage(page); (tng) (tng) (tng)
(tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return new Result(page, users); (tng)
(tng) (tng) (tng) }
}
DAO数据讉K实现c?UserDAOImpl.java
package com.linan.dao.impl;
public class UserDAOImpl (tng) implements UserDAO {
(tng) (tng)...........
(tng) (tng) (tng) (tng) (tng) public List getUserByPage(Page page) throws HibernateException { (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) String querySentence = "FROM user in class com.linan.bo.Userlist"; (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) Query query = getSession().createQuery(querySentence); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) //实现分页功能
(tng) (tng) (tng) (tng) (tng) (tng) (tng) query.setFirstResult(page.getBeginIndex()) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) .setMaxResults(page.getEveryPage()); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) return query.list(); (tng)
(tng) (tng) (tng) }
}
表现层Structs中的Action UserdisplayAction.java
package com.linan.struts.action;
public class UserdisplayAction extends Action {
(tng)
(tng)public ActionForward execute(
(tng) (tng)ActionMapping mapping,
(tng) (tng)ActionForm form,
(tng) (tng)HttpServletRequest request,
(tng) (tng)HttpServletResponse response) {
(tng) (tng) (tng)Page page=new Page(); (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) UserManagerImpl userManager=new UserManagerImpl();
(tng) (tng) (tng) (tng) (tng) (tng) (tng) UserDAOImpl userDAO=new UserDAOImpl();
(tng) (tng) (tng) (tng) (tng) (tng) (tng) userManager.setUserDAO(userDAO);
(tng) (tng) (tng) (tng) (tng) (tng) //掉用业务代理完成分页
(tng) (tng) (tng) (tng) (tng) (tng) (tng) Result result=userManager.listUser(page);
(tng) (tng) (tng) (tng) (tng) (tng) (tng) List list=result.getContent();
(tng) (tng) (tng) (tng) (tng) (tng) (tng) HttpSession session=request.getSession();
(tng) (tng) (tng) (tng) (tng) (tng) (tng) session.setAttribute("list",list);
(tng) (tng)return mapping.findForward("displayGo");
(tng)}
}
(tng)
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Sunlight NetStore源码下蝲
下蝲的源E序是Eclipse下完成的工程源程?可以在Eclipse下只接导入进来打开完成发布. (tng)也可以在tomcat安装目录\webapps目录下新Z文g夹jpetstore然后把下载下来的WebRoot目录下的所有内定w拯? (tng) 数据库的建立, 我开发时使用的是mysql4.0(如果你用的是mysql5.0则可能有时会(x)出错, 5.0是它的测试版我用?jin)感觉有时?x)出现莫明其妙的错?q(sh)为是E序错误, 费了(jin)我好多时? ?.0是它的发布版很稳定的). 使用mysql你可以配合用MySQL Control Center(mysql4.0, MySQL Control Center可以|上下蝲Google一下吧q里׃提供下蝲地址?很好用的和微软的SQL Server差不? 在MySQL Control Center中执行数据库脚本, 然后启动tomcat服务? 你将看到如下: (tng) (tng)(开发用的技术是Structs里面的东? ׃说了(jin). 架构, 业务层和数据层和原来的不? 想了(jin)解请看Spring JPetStore(? Spring JPetStore的分?/a>) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng)
(tng) (tng)
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(tng) (tng) (tng) (tng) 我像一只灰子鸟, 我想飞翔, 永远都不要停. 我一个h在天IZ漫无目的的飞? 不知飞了(jin)多远, 也不知还能飞多远. 只是记得自已q在飞着, 一直飞着...... 有一天我遇到?jin)一南ȝ大雁, 它们告诉? 跟我们一赯吧小灰子? 前面很冷你会(x)被冻ȝ, 跟我们一起到南方d, 那里有O漫的pq有充的食? 谢谢你们的好意大雁阿? 我是灰子? 在我的天I没有停留和目的, 我只有往前飞那是我的使命.灰子鸟告别了(jin)雁群l箋(hu)往前飞? 天空来暗, I气中充满着寒流, 灰子鸟感C(jin)大难卛_来(f).....
(tng) (tng) (tng) (tng) (tng)灰子鸟很? 很冷. 它连睁开双眼都觉得那么用? 它好像睡一觉啊! 呼呼的风声告诉他, 他还在飞? 它还要飞? q是它会(x)L? 灰子鸟还是一直飞, 因ؓ(f)那是它的使命, 它没有选择, 因ؓ(f)它没有脚, 生命中注定了(jin)飞翔..
(tng) (tng) (tng) (tng) 灰子鸟还要飞? 对他惛_q方, 他想d扑֮的天I? 在那里是它们的天? 那里有宽阔的草场, 健康的牛?.. 可是灰子鸟的膀太小? 属于他的天空太小, 即它用全力也飞不C(jin)...... 它流泪了(jin)!
(tng) (tng) (tng) (tng) 或许我就是这只灰子鸟, 即用尽全力你还是离我那么远, 很抱歉我飞不C的n边了(jin), 或许没有我你的天IZ(x)更美...... 很抱歉我的翅膀太小, 你的天空应该属于别h......
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源码下蝲(http://www.wrox.com/WileyCDA/WroxTitle/productCd-0764558315,descCd-download_code.html) (tng)
(tng) (tng) (tng) (tng) (tng) (tng) 好了(jin)有了(jin)源码让我们先来一睹ؓ(f)快然后再来分?
(tng) (tng) (tng) (tng) (tng) (tng) 要构建Spring Jpetstore 应用你还需要安装JDK (tng)和Tomcat详情L(fng)我的JSP开发入门用L(fng)陆认?/a> (tng)此外Z(jin)用ANT构徏应用q要安装讄ANT工具(下蝲地址:http://www.jakarta.apache.org) (tng)ANT的安装Y件是解压软g?只需把压~文件解压到本地盘. q设|一下环境变?ANT_HOME=ANT的安装目?PATH=%PATH%;%ANT_HOME%\bin; CLASSPATH=%CLASSPATH%;%ANT_HOME%\lib;
(tng) (tng) (tng) (tng) (tng) (tng) (tng) 好了(jin)环境搭徏完闭, (tng)现在q入 ..\spring-jpetstore\samples\jpetstore>
执行ANT命o(h) ..\spring-jpetstore\samples\jpetstore>ant
则将?..\spring-jpetstore\samples\jpetstore\dist目录下生成jpetstore.war的发布文? 现在大功告成把jpetstore.war文g拷到tomcat安装目录\webapps\? 启动tomcat服务?tomcat安装目录\bin\star_up.bat). 启动hsql数据?..\spring-jpetstore\samples\jpetstore\db\hsqldb\server.bat). 好了(jin)一切搞定现在打开览器输?http://localhost:8080/jpetstore)你将可看到如?
(tng)
借助?..\spring-jpetstore\samples\jpetstore\db\hsqldb\manager.bat)看到的hsql数据库中的数?br />
发布搞定下面对它做一些简要的分析!
L(fng)Spring JPetStore(? (tng) (tng) JPetStore的分?/a>
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