<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@page import="java.sql.*"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>分页</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
</head>
<body>
<table border="1" width="80%" align="center" cellpadding="5" cellspacing="0">
<tr>
<td>编号</td>
<td>姓名</td>
<td>年龄</td>
<td>性别</td>
</tr>
<%
//获取参数
String s = request.getParameter("pageNow");
int pageSize = 5; //一页记录的条数
int lineCount; //数据总数
int pageCount; //分页数目
int pageNow = 1; //当前页数
if(s!=null)
{
pageNow = Integer.parseInt(s);
}
String driverName = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/emis";//注意：URL间不能有空格
String User = "root"; //默认用户名
String PassWord = "root"; //密码
String sql = "select count(*) from s ";
Class.forName(driverName);//加载JDBC驱动
//连接服务器和数据库
Connection conn = DriverManager.getConnection(url, User, PassWord);
PreparedStatement ps=conn.prepareStatement(sql);
ResultSet rs = ps.executeQuery();
rs.next();
lineCount = rs.getInt(1);//获取总行数
//求出总页数
pageCount = lineCount % pageSize
==0?lineCount/pageSize:lineCount/pageSize+1;
/*limit 第一个？是起始位置，下标为0；第二个？是总条数*/
ps = conn.prepareStatement("select * from s limit ?,?");
ps.setInt(1,pageSize*(pageNow-1));
ps.setInt(2,pageSize);
rs = ps.executeQuery();
while(rs.next())
{
%>
<tr>
<td> <%= rs.getInt(1)%> </td>
<td> <%= rs.getString(2)%> </td>
<td> <%= rs.getInt(3)%> </td>
<td> <%= rs.getString(4)%> </td>
</tr>
<%
}
rs.close();
ps.close();
%>
<tr >
<td colspan="8" align="center">
<%
for(int i = 1 ; i<= pageCount ; ++i) {
%>
<a href="datapaging.jsp?pageNow=<%=i %>"> <%=i %></a>
<%
}
%>
<br><br>
<a href="datapaging.jsp?pageNow=1">首页</a>
<a href="datapaging.jsp?pageNow=<%= pageNow-1>=1?pageNow-1:1 %>">上一页</a>
<a href="datapaging.jsp?pageNow=<%=pageNow+1<pageCount?pageNow+1:pageCount %>">下一页</a>
<a href="datapaging.jsp?pageNow=<%=pageCount %>">尾页</a>
<br>
<%= pageNow+"/"+pageCount %>
</td>
</tr>
</table>
</body>
</html>
jsp data paging
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Origin blog.csdn.net/m0_46267375/article/details/105802077
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