java分页 Struts+Ibatis

首先写一个分页类：

package com.zc.book.util; import java.util.List; public class PageUtil { private int pageSize=20;//每页显示的条数 默认20 private int recordCount;//记录总数 private int currentPage;//当前页 private int pageIndex;//每页的第一条记录编号 private List pageList;//每页的记录集 private int totalPage;//总页数 public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getRecordCount() { return recordCount; } public void setRecordCount(int recordCount) { this.recordCount = recordCount; } public int getCurrentPage() { return currentPage; } public void setCurrentPage(int currentPage) { this.currentPage = currentPage; } public int getPageIndex() { return pageIndex; } public void setPageIndex(int pageIndex) { this.pageIndex = pageIndex; } public List getPageList() { return pageList; } public void setPageList(List pageList) { this.pageList = pageList; } public int getTotalPage() { return totalPage; } public void setTotalPage(int totalPage) { this.totalPage = totalPage; } //初始化 currentPage 当前页,pageSize 每页大小,recordCount 总记录数,pageIndex 每页第一条记录序号 public void init(int currentPage,int pageSize,int recordCount){ this.currentPage=currentPage>0?currentPage:1;//设置当前页 this.pageSize=pageSize;//设置每页大小 this.recordCount=recordCount;//设置总记录数 this.pageIndex=(currentPage-1)*pageSize;//设置每页第一条记录 this.totalPage=recordCount/pageSize+1; if(currentPage>totalPage){ currentPage=totalPage; } } }

在Action中

int currentPage = 1; try { currentPage = Integer.parseInt(request.getParameter("currentPage")); } catch(Exception ex) { } PageUtil pageUtil=new PageUtil(); pageUtil=bookService.pageBookInfo(currentPage); request.setAttribute("pageUtil", pageUtil); return mapping.findForward("bookInfo");

service中的pageBookInfo方法：

 public PageUtil pageBookInfo(int currentPage) { // TODO Auto-generated method stub List list=bookDao.bookInfo(); PageUtil pageUtil=new PageUtil(); //设置当前页，每页记录数，总记录数 pageUtil.init(currentPage, 25, list.size()); //通过pageUtil的"pageIndex--每页的第一条记录编号"和"pageSize--每页显示的条数" //这两个参数去数据库中查询出其中一页的记录，放入List里 list=bookDao.pageBook(pageUtil); //将list中一页的记录放入pageUtil pageUtil.setPageList(list); return pageUtil; }

sqlMap中的语句：

<select id="listAllBook" resultClass="Book"> select * from bookinfo </select> <select id="pageBook" resultClass="Book" parameterClass="PageUtil"> select * from bookinfo limit #pageIndex#,#pageSize# </select>

在jsp中添加：

<table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="25%" height="29" nowrap="nowrap"><span class="STYLE1">共${pageUtil.recordCount }条纪录，当前第${pageUtil.currentPage }/${pageUtil.totalPage }页，每页${pageUtil.pageSize }条纪录</span></td> <td width="75%" valign="top" class="STYLE1"><div align="right"> <table width="352" height="20" border="0" cellpadding="0" cellspacing="0"> <tr> <c:if test="${pageUtil.currentPage == 1}"> <td width="62" height="22" valign="middle"><div align="right"><img src="tab/images/first.gif" mce_src="tab/images/first.gif" width="37" height="15" /></div></td> <td width="50" height="22" valign="middle"><div align="right"><img src="tab/images/back.gif" mce_src="tab/images/back.gif" width="43" height="15" /></div></td> </c:if> <c:if test="${pageUtil.currentPage != 1}"> <td width="62" height="22" valign="middle" align="right" ><a href="<%=basePath%>book.do?method=page¤tPage=1" target='I1'><img src="tab/images/first.gif" mce_src="tab/images/first.gif" width="37" height="15" border="0"/></a></td> <td width="50" height="22" valign="middle" align="right"><a href="<%=basePath%>book.do?method=page¤tPage=${pageUtil.currentPage-1 }" target='I1'><img src="tab/images/back.gif" mce_src="tab/images/back.gif" width="43" height="15" border="0"></a></td> </c:if> <c:if test="${pageUtil.currentPage == pageUtil.totalPage}"> <td width="54" height="22" valign="middle" align="right"><img src="tab/images/next.gif" mce_src="tab/images/next.gif" width="43" height="15" /></td> <td width="49" height="22" valign="middle" align="right"><img src="tab/images/last.gif" mce_src="tab/images/last.gif" width="37" height="15" /></td> </c:if> <c:if test="${pageUtil.currentPage != pageUtil.totalPage}"> <td width="54" height="22" valign="middle" align="right"><a href="<%=basePath%>book.do?method=page¤tPage=${pageUtil.currentPage+1 }" target='I1'><img src="tab/images/next.gif" mce_src="tab/images/next.gif" width="43" height="15" border="0"/></a></td> <td width="49" height="22" valign="middle" align="right"><a href="<%=basePath%>book.do?method=page¤tPage=${pageUtil.totalPage }" target='I1'><img src="tab/images/last.gif" mce_src="tab/images/last.gif" width="37" height="15" border="0"/></a></td> </c:if> <td width="59" height="22" valign="middle"><div align="right"><span class="STYLE1">转到第</span></div></td> <td width="25" height="22" valign="middle"><span class="STYLE7"> <!-- <input name="textfield" type="text" class="STYLE1" style="height:15px; width:30px;" size="5" /> --> <select id="selectPage" name="selectPage"> <c:forEach var="i" begin="1" end="${pageUtil.totalPage }" step="1"> <option value="${i}"><c:out value="${i}" /></option> </c:forEach> </select> </span></td> <td width="23" height="22" valign="middle"><span class="STYLE1">页</span></td> <td width="30" height="22" valign="middle"><a href="javascript:goPage()" mce_href="javascript:goPage()"><img src="tab/images/go.gif" mce_src="tab/images/go.gif" width="37" height="15" border="0"/></a></td> </tr> </table> </div></td> <td width="14"><img src="tab/images/tab_22.gif" mce_src="tab/images/tab_22.gif" width="14" height="29" /></td> </tr> </table>

<mce:script type="text/javascript"><!-- //页数select随页数自动变化 function selectPage(currentPage){ var i,num,op num=document.getElementById("selectPage").length; for(i=0;i<num;i++){ op=document.getElementById("selectPage").options[i]; if(op.value==currentPage) op.selected=true; } } //根据所选页数进行跳转 function goPage(){ var currentpage; currentpage=document.getElementById("selectPage").value; window.location="<%=basePath%>book.do?method=page&currentPage="+currentpage; } // --></mce:script>