java_JDBC-分页
日期：2014-05-16 浏览次数：20391 次
java_JDBC---------分页
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="java.sql.*" import="com.db.*" import="javax.servlet.http.HttpSession;" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%
HttpSession session1 = request.getSession();
String affairsfzid=(String)session1.getAttribute("affairsfzid");
Jdbc db=new Jdbc();
Jdbc db1=new Jdbc();
String sql="select * from tb_affair where GscPubUserIdCardNum like '%"+affairsfzid+"%'";//GscProjectCodeId='"+affairsfzid+"'
String sql1 = "select * from tb_affair where GscPubUserIdCardNum like '%"+affairsfzid+"%'";//计算条数的sql
ResultSet rs = null;
ResultSet rs1 = null;
rs = db.executeQuery(sql);
rs1 = db1.executeQuery(sql1);
//下边是分页的一些处理
int pageSize = 20;//每页显示条数
int rowCount = 0;
while(rs1.next())
rowCount = rs1.getInt(1 );
int pageCount;
int curPage;
String strPage = request.getParameter("page");
curPage = strPage == null ? 1 : Integer.parseInt(strPage) ;
curPage = curPage <1 ? 1 :curPage;
pageCount = (rowCount + pageSize -1)/pageSize;
curPage = curPage > pageCount ? pageCount : curPage;
int thePage = (curPage - 1) * pageSize;
int n = 0;
rs.absolute(thePage + 1 );
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JDBC查询分页.赵永恩</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<LINK href="./images/nes_style.css" type="text/css" rel="stylesheet"></LINK>
</head>
<body>
[align=center" style="font-size:12px;]
<!-- 这地方是下边调用显示的地方 -->
第<%=curPage%>页 共<%=pageCount%>页 共<%=rowCount%>条
<%if(curPage>1){%>[url=affairrequest.jsp]首页[/url]<%}%>
<%if(curPage>1){%>[url=affairrequest.jsp?page=<%=curPage-1%>]上一页[/url]<%}%>
<%if(curPage<pageCount){%>[url=affairrequest.jsp?page=<%=curPage+1%>]下一页[/url]<%}%>
<%if(pageCount>1){%>[url=affairrequest.jsp?page=<%=pageCount%>]尾页[/url]<%}%>
[url=#]<input type="text" size="10" name="num">GO[/url]<!-- 这个正在考虑中 -->
</td>
</tr>
</table>
[/align]
</div>
</div>
</body>
</html>
package com.db;
import java.sql.*;
/**
*
* 连接sql server2000
* @author 赵永恩
*
*/
public class Jdbc{
String dbUrl="jdbc:sqlserver://localhost:1433; DatabaseName=SczwWeb";
String theUser="sa";
String thePw="";
Connection c=null;
Statement conn;
ResultSet rs=null;
public Jdbc(){
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
c = DriverManager.getConnection(dbUrl,theUser,thePw);
//创建滚动结果集 需要把创建stme对象后多加两个参数ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
conn=c.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
}catch(Exception e){
e.printStackTrace();
}
}
/**
* 更新
* @param sql
* @return
*/
public boolean executeUpdate(String sql){
try {
conn.executeUpdate(sql);
return true;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
/**
* 查询
* @param sql
* @return
*/
public ResultSet executeQuery(String sql) {
rs=null;
try {
rs=conn.executeQuery(sql);
} catch (SQLException e) {
e.printStackTrace();
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