📄 howtouse.txt

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分页javabean的使用方法如下：
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="simpleforum.page.*"%>
<html>
<head>
	<title>分页测试</title>
</head>
<%
	String countSql = "select count(*) from forumpost where answerPostId= 0 ";
	String jumpPage = (request.getParameter("jumpPage")==null)?"1":request.getParameter("jumpPage");
	String objSql = "select * from forumpost where answerPostId=0 ";
	//两个sql语句封装在javabean中
	ContactBean contact = new ContactBean();
	contact.setCountSql(countSql);
	PageBean pageBean = contact.listData(jumpPage,objSql);
%>
<body>
	<form name="item" method="post" action="page.jsp">
		<table border="1" bordercolor="blue">
			<tr>
				<td>顺号</td>
				<td>帖子标题</td>
				<td>发言人</td>
			</tr>
<%
	int start = (Integer.parseInt(jumpPage)-1)*10+1;
	String PostName = "";
	String SpokesMan = "";
	java.util.Vector vector = pageBean.getResult();
	//out.println("vector="+vector);
	out.println("vector.size()="+vector.size());
	for(int i=0 ;i<vector.size();i++){
		java.util.Hashtable hash =(java.util.Hashtable)vector.elementAt(i);
		PostName = (String)hash.get("POSTNAME");
		SpokesMan = (String)hash.get("SPOKESMAN");
%>
	<tr>
		<td><%=start+i%></td>
		<td><%=PostName%></td>
		<td><%=SpokesMan%></td>
	</tr>
<%		
	}
%>			
		</table>
<%@ include file="includepage.jsp"%>
	</form>	
</body>
</html>
--------------------includepage.jsp-------------
<%@ page contentType="text/html;charset=gb2312" %>
<script languange="javascript">	
	function Jumping(){
		document.item.submit();
		return;
	}
	function gotoPage(pagenum){
		document.item.jumpPage.value=pagenum;
		document.item.submit();
		return;
	}
</script>
<table>
	<tr>
		<td>
			每页<%=pageBean.rowsPerPage%>行
			共<%=pageBean.maxRowCount%>行
			第<%=pageBean.curPage%>页
			共<%=pageBean.maxPage%>页
			<br>
<%
	if(pageBean.curPage==1){
		out.println(" 首页 上一页");
	}else{
%>
			<a href="javascript:gotoPage(1)">首页</a>
			<a href="javascript:gotoPage(<%=pageBean.curPage-1%>)">上一页</a>
<%	
	}
	if(pageBean.curPage==pageBean.maxPage){
		out.println(" 下一页 尾页");
	}else{
%>
			<a href = "javascript:gotoPage(<%=pageBean.curPage+1%>)">下一页</a>
			<a href = "javascript:gotoPage(<%=pageBean.maxPage%>)">尾页</a>
<%	
	}
%>	
			转到第
			<select name="jumpPage" onchange="Jumping()">
<%
	for(int i = 1;i<=pageBean.maxPage;i++){
		if(i==pageBean.curPage){
%>
			<option selected value="<%=i%>" ><%=i%></option>
<%
		}else{
%>
	<option value="<%=i%>"><%=i%></option>
<%		
		}
	}
%>			
			</select>页
		</td>
	</tr>
</table>
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