分页：
//分页查询
public List fenye(int index,int size) {
log.debug("finding all House instances");
try {
String queryString = "from House";
Query queryObject = getSession().createQuery(queryString);
//分页的参数设置
queryObject.setFirstResult((index-1)*size);
queryObject.setMaxResults(size);
return queryObject.list();
} catch (RuntimeException re) {
log.error("find all failed", re);
throw re;
}
}//分页查询
public String fenye() throws Exception {
HouseDAO dao = new HouseDAO();
int total = (dao.findAll()).size();
count = total%size==0?total/size:total/size+1;
System.out.println("count:"+count);
if (index<1) {
index=1;
}
if (index>count) {
index=count;
}
List<House> list = dao.fenye(index,size);
session.remove("info");
session.put("info", list);
return SUCCESS;
}xml
<action name="fenyeAction" class="com.bdqn.action.HouseAction" method="fenye">
<result name="success">/HouseIndex.jsp</result>
</action>页面
<a href="Hibernate_Strutes2/HouseAction/fenyeAction?index=0&size=${size}"><button>首页</button></a>
<a href="Hibernate_Strutes2/HouseAction/fenyeAction?index=${index-1}&size=${size}"><button>上一页</button></a>
<a href="Hibernate_Strutes2/HouseAction/fenyeAction?index=${index+1}&size=${size}"><button>下一页</button></a>
<a href="Hibernate_Strutes2/HouseAction/fenyeAction?index=${count}&size=${size}"><button>尾页</button></a>
多条件查询：
<!-- 查询 -->
<form action="/Hibernate_Strutes2/HouseAction/findByTiaoJianAction">
<strong>房屋信息</strong><br>
包含关键字：<input type="text" name="title">
价格：<select name="price">
<option value=0>不限</option>
<option value=1000>0~1000</option>
<option value=2000>1000~2000</option>
<option value=3000>20000~3000</option>
</select>
房屋位置：<select name="streetid">
<option value=0>不限</option>
<option value=1>天河大道</option>
<option value=2>黄埔大道一号</option>
<option value=3>黄埔大道二号</option>
<option value=4>越秀大道</option>
</select>
房型：<select name="type1id">
<option value=0>不限</option>
<option value=1>出租屋</option>
<option value=2>公寓</option>
<option value=3>天桥底</option>
</select>
面积：<select name="floorage">
<option value=0>不限</option>
<option value=500>500以下</option>
<option value=1000>1000以下</option>
<option value=1500>1500以下</option>
</select>
日期：<select name="pubdate">
<option value=0>不限</option>
<option value=1>一个月内</option>
<option value=2>两个月内</option>
<option value=3>三个月内</option>
</select><br>
<input type="submit" value="搜索">
</form>//按条件查询
public List findBy(String title,int price,int streetid,int type1id,int floorage,int pubdate) {
// from house where title like '%新%' and price < 2000 and street_id = 4 and
// type_id = 1 and floorage < 1500 and pubdate > (sysdate-3)
log.debug("finding all House instances");
try {
String queryString = "from House where 1=1";
if (title!=null) {
queryString=queryString+" and title like '%"+title+"%'";
}
if (price!=0) {
queryString=queryString+" and price < "+price;
}
if (streetid!=0) {
queryString=queryString+" and street_id = "+streetid;
}
if (type1id!=0) {
queryString=queryString+" and type_id = "+type1id;
}
if (floorage!=0) {
queryString=queryString+" and floorage <= "+floorage;
}
if (pubdate!=0) {
queryString=queryString+" and pubdate > (sysdate-"+pubdate+")";
}
System.out.println(queryString);
Query queryObject = getSession().createQuery(queryString);
return queryObject.list();
} catch (RuntimeException re) {
log.error("find all failed", re);
throw re;
}
}//条件查询
public String findByTiaoJian() throws Exception {
System.out.println(title);
System.out.println(price);
System.out.println(streetid);
System.out.println(type1id);
System.out.println(floorage);
System.out.println(pubdate);
HouseDAO dao = new HouseDAO();
List<House> list = dao.findBy(title, price, streetid, type1id, floorage, pubdate);
// for (House house : list) {
// System.out.println(house.getTitle());
// System.out.println(house.getPrice());
// System.out.println(house.getStreet());
// System.out.println(house.getType1());
// System.out.println(house.getFloorage());
// System.out.println(house.getPubdate());
// }
session.remove("info");
session.put("info", list);
return SUCCESS;
}<action name="findByTiaoJianAction" class="com.bdqn.action.HouseAction" method="findByTiaoJian">
<result name="success">/HouseIndex.jsp</result>
</action>作业：
验证是否是管理员登录如果是就可以增加和删除
//登录
public String Login() throws Exception {
MyuserDAO dao = new MyuserDAO();
List<Myuser> list = dao.findByExample(myuser);
if (list.size()>0) {
if (("admin").equals(list.get(0).getUsername())) {
System.out.println(list.get(0).getUsername());
num=1;
}
session.put("mess", num);
return SUCCESS;
}
return ERROR;
}<!-- 电影action -->
<action name="UserAction" class="com.bdqn.action.MyUserAction" method="Login">
<result name="success" type="redirectAction">ShowMovieAction</result>
<result name="error">/MyUserLogin.jsp</result>
</action>
<action name="ShowMovieAction" class="com.bdqn.action.MyUserAction" method="show">
<result name="success">/showMovie.jsp</result>
</action>
<action name="DeleteMovieAction" class="com.bdqn.action.MyUserAction" method="delete">
<result name="success" type="redirectAction">ShowMovieAction</result>
</action>
<action name="AddMovieAction" class="com.bdqn.action.MyUserAction" method="add">
<result name="success" type="redirectAction">ShowMovieAction</result>
</action><table border="2">
<tr>
<td>编号</td>
<td>电影名</td>
<td>导演</td>
<td>演员</td>
<td>介绍</td>
<td>上映时间</td>
<c:if test="${mess==1}">
<td>操作</td>
</c:if>
</tr>
<s:iterator value="session.movies" var="movie">
<tr>
<td>${movie.id }</td>
<td>${movie.moviename }</td>
<td>${movie.director }</td>
<td>${movie.player }</td>
<td>${movie.introduction}</td>
<td>${movie.time}</td>
<c:if test="${mess==1}">
<td>
<a href="/Hibernate_Strutes2/MyUserAction/DeleteMovieAction?delete=${movie.id}"><button>删除</button></a>
<a href="AddMovie.jsp"><button>增加</button></a>
</td>
</c:if>
</tr>
</s:iterator>
</table>