SSH框架分页展示

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jsp页面

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%@ taglib prefix="s" uri="/struts-tags" %><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'pictrue.jsp' starting page</title>    <meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="css/jkxyflower.css">  </head>    <body>    <jsp:include page="head.jsp"></jsp:include>     <div class="content">    <div class="left">    <h1>左边</h1>    </div>    <div class="right">    <s:iterator value="#request.flowers" id="flower">    <div class="newflower">    <s:form action="shoppingAction" method="post" theme="simple">    <img src="pic/<s:property value="#flower.picture"/>" />    <br>    <s:property value="#flower.flowername"/>    <br>    <s:property value="#flower.price" />元    <br>    数量<s:textfield size="4" name="quantity"></s:textfield>    <input type="hidden" name="id" value="<s:property value="#flower.flowerid" />">    <s:submit value="购买"></s:submit>    </s:form>    </div>    </s:iterator>    <div style="clear:both">    <s:set name="pager" value="#request.page" />    <s:if test="#pager.hasFirst">    <a href="browseFlower.action?currentPage=1">首页</a>    </s:if>    <s:if test="#pager.hasPrevious">    <a href="browseFlower.action?currentPage=<s:property value="#pager.currentPage-1" />">上一页</a>    </s:if>    <s:if test="#pager.hasNext">    <a href="browseFlower.action?currentPage=<s:property value="#pager.currentPage+1" />">下一页</a>    </s:if>    <s:if test="#pager.hasLast">    <a href="browseFlower.action?currentPage=<s:property value="#pager.totalPage" />">尾页</a>    </s:if>    <br>    当前第<s:property value="#pager.currentPage" />页，    总共<s:property value="#pager.totalPage" /> 页    </div>   </div>    </div>   <jsp:include page="foot.jsp"></jsp:include>  </body></html>

Page工具类

package com.jkxy.util;/** * @author  * @category 分页实体类 */public class Page {//当前页码private int currentPage;//页面尺寸private int pageSize = 4;//总的记录数private int totalSize;//总的页码数private int totalPage;//是否有首页private boolean hasFirst;//是否有上一页private boolean hasPrevious;//是否有下一页private boolean hasNext;//是否有尾页private boolean hasLast;//构造方法public Page() {}public Page(int currentPage, int totalSize) {super();this.currentPage = currentPage;this.totalSize = totalSize;}public int getCurrentPage() {return currentPage;}public void setCurrentPage(int currentPage) {this.currentPage = currentPage;}public int getPageSize() {return pageSize;}public void setPageSize(int pageSize) {this.pageSize = pageSize;}public int getTotalSize() {return totalSize;}public void setTotalSize(int totalSize) {this.totalSize = totalSize;}public int getTotalPage() {totalPage = totalSize/pageSize;if(totalSize % pageSize != 0){totalPage++;}return totalPage;}public void setTotalPage(int totalPage) {this.totalPage = totalPage;}public boolean isHasFirst() {if(currentPage == 1){return false;}return true;}public void setHasFirst(boolean hasFirst) {this.hasFirst = hasFirst;}public boolean isHasPrevious() {if(isHasFirst()){return true;}return false;}public void setHasPrevious(boolean hasPrevious) {this.hasPrevious = hasPrevious;}public boolean isHasNext() {if(isHasLast()){return true;}return false;}public void setHasNext(boolean hasNext) {this.hasNext = hasNext;}public boolean isHasLast() {if(currentPage == getTotalPage()){return false;}return true;}public void setHasLast(boolean hasLast) {this.hasLast = hasLast;}}

action方法

package com.jkxy.action;import java.util.List;import java.util.Map;import com.jkxy.entity.Catalog;import com.jkxy.service.ICatalogService;import com.jkxy.service.IFlowerService;import com.jkxy.util.Page;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;/** * @author  * @category 鲜花分类的控制层 */public class flowerAction extends ActionSupport {private ICatalogService catalogservice;private IFlowerService flowerService;private int catalogid;private int currentPage = 1;public void setCurrentPage(int currentPage) {this.currentPage = currentPage;}public void setCatalogid(int catalogid) {this.catalogid = catalogid;}public void setFlowerService(IFlowerService flowerService) {this.flowerService = flowerService;}public void setCatalogservice(ICatalogService catalogservice) {this.catalogservice = catalogservice;}/** * 获得鲜花的分类 * @return * @throws Exception */public String browseCatalog() throws Exception{List<Catalog> catalogs= catalogservice.findAllCatalogs();Map request = (Map) ActionContext.getContext().get("request");request.put("catalogs", catalogs);return SUCCESS;} public String browseFlowerPaging() throws Exception{System.out.println(catalogid);int totalSize = flowerService.getTotalByCatalogid(catalogid);Page page = new Page(currentPage, totalSize);List flowers = flowerService.getFlowerByCatalogidPaging(catalogid, currentPage,page.getPageSize());Map request = (Map) ActionContext.getContext().get("request");request.put("flowers", flowers);request.put("page", page);return "flowerpage";}}

service层

package com.jkxy.service.impl;import java.util.List;import com.jkxy.dao.IFlowerDao;import com.jkxy.service.IFlowerService;public class FlowerServiceImpl implements IFlowerService {private IFlowerDao flowerdao;public void setFlowerdao(IFlowerDao flowerdao) {this.flowerdao = flowerdao;}@Overridepublic List getFlowerByCatalogidPaging(int catalogid, int currentPage,int currentSize) {return flowerdao.getFlowerByCatalogidPaging(catalogid, currentPage, currentSize);}@Overridepublic int getTotalByCatalogid(int catalogid) {return flowerdao.getTotalByCatalogid(catalogid);}}

dao层

package com.jkxy.dao.impl;import java.util.List;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import com.jkxy.dao.IFlowerDao;/** * @author  * @category 鲜花持久层实现类 */public class FlowerDaoImpl implements IFlowerDao {private SessionFactory sessionfactory;public void setSessionfactory(SessionFactory sessionfactory) {this.sessionfactory = sessionfactory;}@Overridepublic List getFlowerByCatalogidPaging(int catalogid, int currentPage,int currentSize) {Session session = sessionfactory.openSession();Query query = session.createQuery("from Flower where catalogid ="+catalogid);query.setFirstResult((currentPage-1)*currentSize);query.setMaxResults(currentSize);List flowers = query.list();session.close();return flowers;}@Overridepublic int getTotalByCatalogid(int catalogid) {Session session = sessionfactory.openSession();Query query = session.createQuery("from Flower where catalogid ="+catalogid);List flowers = query.list();session.close();return flowers.size();}}

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