<％@ page contenttype="text/html;charset=gb2312" ％>
<％@ page language="java" import="java.sql.*" ％>
<script language="javascript">
function newwin(url) {
var
newwin=window.open(url,"newwin","toolbar=no,location=no,directories=no,status=no,
menubar=no,scrollbars=yes,resizable=yes,width=600,height=450");
newwin.focus();
return false;
}
</script>
function submit10()
{
self.location.replace("fenye1.jsp")
<％//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 = 4;
//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("sun.jdbc.odbc.jdbcodbcdriver");
//设置数据库连接字符串
strcon = "jdbc:odbc:heyang";
//连接数据库
sqlcon = java.sql.drivermanager.getconnection(strcon,"sa","");
//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.result
set.concur_read_only);//准备sql语句
strsql = "select user_id,user_name from userinfo order by user_id desc";
//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=gb2312">
<title>会员管理</title>
</head>
<body>
<form method="post" action="fenye1.jsp">
第<％=intpage％>页 共<％=intpagecount％>页
<％if(intpage<intpagecount){％><a
href="fenye1.jsp?page=<％=intpage+1％>">下一页
</a><％}％> <％if(intpage>1){％><a href="fenye1.jsp?page=<％=intpage-1％>">
上一页</a><％}％>
转到第:<input type="text" name="page" size="8"> 页
<span><input class=buttonface type=´submit´ value=´go´ name=´cndok´></span>
</form>
<table border="1" cellspacing="0" cellpadding="0">
<tr>
<th>id</th>
<th>用户名</th>
<th width=´8％´>删除</th>
</tr>
<％
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);
<td><％=user_id％></td>
<td><％=user_name％></td>
<td width=´8％´ align=´center´><a href="delete.jsp?user_id=<％=user_id％>"
onclick="return newwin(this.href);">删除</a></td>
sqlrst.next();
i++;
</table>
</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();
![Java小案例——随机数猜测随机数猜测[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)