<%@ page contentType="text/html;charset=utf-8" pageEncoding="utf-8"%>
<%@ page language="java" import="java.sql.*"%>
<script LANGUAGE="javascript">
<!-- 跳页函数 -->
function test() {
//这里还需要实现一些对于输入页码的安全性验证。比如不能为空，必须是数字这些。
var page = document.getElementById("goPage").value;
window.location.href = "Tem2.jsp?page=" + page;
}
</script>
<%
//变量声明
java.sql.Connection sqlCon; //数据库连接对象
java.sql.Statement sqlStmt; //SQL语句对象
java.sql.ResultSet sqlRst; //结果集对象
java.lang.String strCon; //数据库连接字符串
java.lang.String strSQL; //SQL语句
int intPageSize; //一页显示的记录数
int intRowCount; //记录总数
int intPageCount; //总页数
int intPage; //待显示页码
java.lang.String strPage;
int i;
//设置一页显示的记录数
intPageSize = 2;
//取得待显示页码
strPage = request.getParameter("page");
if (strPage == null) {//表明在QueryString中没有page这一个参数，此时显示第一页数据
intPage = 1;
} else {//将字符串转换成整型
intPage = java.lang.Integer.parseInt(strPage);
if (intPage < 1)
intPage = 1;
}
//装载JDBC驱动程序
Class.forName("oracle.jdbc.driver.OracleDriver");
sqlCon = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "system", "lyjie5220");
//创建一个可以滚动的只读的SQL语句对象
sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,
java.sql.ResultSet.CONCUR_READ_ONLY);//准备SQL语句
strSQL = "select * from USERCHART";
//执行SQL语句并获取结果集
sqlRst = sqlStmt.executeQuery(strSQL);
//获取记录总数
sqlRst.last();//??光标在最后一行
intRowCount = sqlRst.getRow();//获得当前行号
//记算总页数
intPageCount = (intRowCount + intPageSize - 1) / intPageSize;
//调整待显示的页码
if (intPage > intPageCount)
intPage = intPageCount;
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>分頁</title>
</head>
<body>
<table border="1" cellspacing="0" cellpadding="0">
<%
if (intPageCount > 0) {
//将记录指针定位到待显示页的第一条记录上
sqlRst.absolute((intPage - 1) * intPageSize + 1);
//显示数据
i = 0;
String user_id, user_name;
while (i < intPageSize && !sqlRst.isAfterLast()) {
user_id = sqlRst.getString(1);
user_name = sqlRst.getString(2);
%>
<tr>
<td><%=user_id%></td>
<td><%=user_name%></td>
</tr>
<%
sqlRst.next();
i++;
}
}
%>
</table>
<form method="POST" action="">
第<%=intPage%>页 共<%=intPageCount%>页
<%
if (intPage < intPageCount) {
%>
<a href="Tem2.jsp?Page=1">首页</a> <a
href="Tem2.jsp?page=<%=intPage + 1%>">下一页</a>
<%
}
%>
<%
if (intPage > 1) {
%>
<a href="Tem2.jsp?page=<%=intPage - 1%>">上一页</a> <a
href="Tem2.jsp?Page=<%=intPageCount%>">尾页</a>
<%
}
%>
转到第:<input id="goPage" type="text" size="8"> 页 <a href="#"
onClick="test()">跳转</a>
</form>
<%
String cpage = request.getParameter("cpage");
out.append(cpage);
//response.sendRedirect("Tem2.jsp?page=intPage + 1");
%>
</body>
</html>
<%
//关闭结果集
sqlRst.close();
//关闭SQL语句对象
sqlStmt.close();
//关闭数据库
sqlCon.close();
%>
