这次实验，我是在一个新闻系统上做的实验。
此系统主要基础java类如图所示。
例如：
在实体类映射的文件中，配置了许多关联映射：
以BigClass.hbm.xml和Article.hbm.xml两个配置文件为例：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.xh369.dto.BigClass" table="bigclasses" dynamic-update="true" dynamic-insert="true">
<id name="id" column="id" type="int">
<generator class="native"/>
</id>
<property name="bigclassname" type="string">
<column name="bigclassname"/>
</property>
<set name="article" cascade="delete" inverse="true">
<key column="bigclassid"/>
<one-to-many class="com.xh369.dto.Article"/>
</set>
<set name="smallclass" cascade="delete" inverse="true">
<key column="bigclass_id"/>
<one-to-many class="com.xh369.dto.SmallClass"/>
</set>
</class>
</hibernate-mapping>-----------------------------------------------------------------------------------------------
<hibernate-mapping>
<class name="com.xh369.dto.Article" table="articles" dynamic-update="true" dynamic-insert="true">
<id name="id" column="id" type="int">
<generator class="native"/>
</id>
<many-to-one
class="com.xh369.dto.BigClass"
name="bigclass"
column="bigclassid"
not-null="false"
/>
<property name="content" type="text">
<column name="content"/>
</property>
<many-to-one
class="com.xh369.dto.SmallClass"
name="smallclass"
column="smallclassid"
not-null="false"
/>
<property name="title" type="string">
<column name="title"/>
</property>
<property name="deploytime" type="timestamp">
<column name="deploytime"/>
</property>
<property name="picpath" type="text">
<column name="picpath"/>
</property>
</class>
</hibernate-mapping>
其中，包括了双向的多对一关联映射（一个一级分类对应多个文章）和单向的一对多（一个文章对应多个二级分类）。一级分类就是大的分类，二级分类就是小的分类咯
比如人物是一级分类，作家，将军等就是二级分类
service层（以ManagerFactory.java为例）：
import com.xh369.dao.ArticleDAO;
import com.xh369.daoimpl.ArticleDAOimpl;
import com.xh369.dao.BigClassDAO;
import com.xh369.daoimpl.BigClassDAOimpl;
import com.xh369.dao.SmallClassDAO;
import com.xh369.daoimpl.SmallClassDAOimpl;
public class ManagerFactory {
//创建文章对象
public static ArticleDAO createArticleDAO(){
return new ArticleDAOimpl();
}
//创建一级分类对象
public static BigClassDAO createBigClassDAO(){
return new BigClassDAOimpl();
}
//创建二级分类对象
public static SmallClassDAO createSmallClassDAO(){
return new SmallClassDAOimpl();
}
}
action层（以admin-action.java为例）：
package com.xh369.actions;
import javax.servlet.http.*;
import com.xh369.dao.*;
import com.xh369.dto.*;
import com.xh369.service.*;
import org.apache.struts.action.*;
import org.apache.struts.actions.*;
import java.util.*;
public class Admin_Action extends DispatchAction{
private AdminDAO adminDAO;
public AdminDAO getAdminDAO(){
return adminDAO;
}
public void setAdminDAO(AdminDAO adminDAO){
this.adminDAO = adminDAO;
}
//登录
public ActionForward login(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Admin_ActionForm admin_ActionForm = (Admin_ActionForm) form;
Admin admin = (Admin) UtilForm.populate(admin_ActionForm, "com.xh369.dto.Admin", new String[] {"username", "pwd"});
int count = adminDAO.getLogin(admin);
if(count > 0){
request.getSession().setAttribute("username", admin_ActionForm.getUsername());
return mapping.findForward("success");
}else{
return mapping.findForward("faile");
}
}
//查询管理人员列表
public ActionForward searchAdminList(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
List aList = adminDAO.getAdminList();
request.setAttribute("aList", aList);
return mapping.findForward("searchAdminList");
}
//添加管理人员
public ActionForward addAdmin(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Admin_ActionForm admin_ActionForm = (Admin_ActionForm) form;
System.out.println("username:" + admin_ActionForm.getUsername());
System.out.println("pwd:" + admin_ActionForm.getPwd());
System.out.println("email:" + admin_ActionForm.getEmail());
String[] level = admin_ActionForm.getLevel();
StringBuffer sb = new StringBuffer();
for(int i = 0; i < level.length; i++){
sb.append(level[i] + ",");
}
sb = sb.deleteCharAt(sb.length() - 1);
Admin admin = (Admin) UtilForm.populate(admin_ActionForm, "com.xh369.dto.Admin", new String[] {"username", "pwd", "email"});
admin.setLevel(sb.toString());
if(adminDAO.insertAdmin(admin)){
return mapping.findForward("addAdmin");
}else{
return mapping.findForward("faile");
}
}
//查询用户权限
public ActionForward searchPopedom(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Integer id = Integer.valueOf(request.getParameter("id"));
Admin admin = adminDAO.getPopedom(id);
List aList = adminDAO.getAllPopedom();
request.setAttribute("admin", admin);
request.setAttribute("id", id + "");
request.setAttribute("aList", aList);
return mapping.findForward("searchPopedom");
}
//修改用户权限
public ActionForward updatePopedom(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Integer id = Integer.valueOf(request.getParameter("id"));
StringBuffer sb = new StringBuffer();
for(int i = 0; i < adminDAO.getAllPopedom().size(); i++){
String level = request.getParameter("level"+i);
if(level != null){
int j = Integer.parseInt(level);
sb.append( (j + 1) + ",");
}
}
sb.deleteCharAt(sb.length() - 1);
if(adminDAO.updatePopedom(id, sb)){
return mapping.findForward("addAdmin");
}else{
return mapping.findForward("faile");
}
}
//删除用户
public ActionForward delAdmin(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Admin_ActionForm admin_ActionForm = (Admin_ActionForm) form;
String[] ids = request.getParameterValues("id");
boolean flag = false;
for(int i = 0; i < ids.length; i++){
flag = false;
Integer id = Integer.valueOf(ids[i]);
if(adminDAO.delAdmin(id)){
flag = true;
}
}
if(flag){
return mapping.findForward("addAdmin");
}else{
return mapping.findForward("faile");
}
}
//导航到添加用户页面
public ActionForward toAdmin(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){
Admin_ActionForm admin_ActionForm = (Admin_ActionForm) form;
List aList = adminDAO.getAllPopedom();
if(aList.size() > 0){
request.setAttribute("aList", aList);
return mapping.findForward("toAdmin");
}else{
return mapping.findForward("faile");
}
}
}