我的一段实现分页的代码
2007-11-19 21:15
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package com.webtier;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.ResultSet;
import java.util.*;
import com.domain.DutyVO;
import com.dao.DutyDao;
import com.tool.*;
//职务信息的servlet
public class DutyServlet extends HttpServlet {
private DutyVO vo = null;
private DutyDao dao = null;
private int method;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
request.setCharacterEncoding("gb2312");
method = Integer.parseInt(request.getParameter("method"));
vo = new DutyVO();
dao = new DutyDao();
switch (method) {
case 0: {
this.dutySelect(request, response); //查询全部信息
break;
}
}
public void dutySelect(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
try{
response.setContentType("text/html;charset=gb2312");
JDBConnection connection=new JDBConnection();
HttpSession session=request.getSession();
String accouts=(String)session.getAttribute("accouts");//得到员工工号
String rt_number=null;
String sql="select * from tb_employee where em_accouts='"+accouts+"'";//查询到员工表中的员工工号
ResultSet rs=connection.executeQuery(sql);//执行
if(rs.next()){
rt_number=rs.getString("em_number");
// System.out.print(number);
}
String sql2="select *from tb_right where rt_number ='"+rt_number+"' and rt_code="+1;
ResultSet rs2=connection.executeQuery(sql2);
if(rs2.next()){
List list = dao.dutySelect();
int pageNumber = list.size(); //计算出有多少条记录
int maxPage = pageNumber; //计算有多少页数
String number = request.getParameter("i");
if (maxPage % 5 == 0) {
maxPage = maxPage / 5;
}
else {
maxPage = maxPage / 5 + 1;
}
if (number == null) {
number = "0";
}
request.setAttribute("number", String.valueOf(number));
request.setAttribute("maxPage",String.valueOf(maxPage));
request.setAttribute("pageNumber",String.valueOf(pageNumber));
request.setAttribute("list", list);
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataDuty/dutySelect.jsp");
requestDispatcher.forward(request, response);
}
else{
PrintWriter out = response.getWriter();
out.print("<script language='javascript'> " +
"window.alert('您没有此权限功能');" +
"window.location='login.jsp'; </script>");
return;
}
}catch(Exception e){
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
}
===========================================================================
<%@page contentType="text/html; charset=gb2312"%>
<%@page import="com.domain.DutyVO"%>
<%@page import="java.sql.*"%>
<%@page import="java.util.*"%>
<%@ page import="com.dao.DutyDao" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="css/style.css" rel="stylesheet" type="text/css">
<title>查询职务信息</title>
</head>
<%
List list = (List) request.getAttribute("list");
int number=Integer.parseInt((String)request.getAttribute("number"));
int maxPage=Integer.parseInt((String)request.getAttribute("maxPage"));
int pageNumber=Integer.parseInt((String)request.getAttribute("pageNumber"));
int start=number * 5;//开始条数
int over=(number+1) * 5;//结束条数
int count=pageNumber-over;//还剩多少条记录
if(count<=0){
over=pageNumber;
}
%>
<body>
<table width="803" height="136" border="0" align="center" cellpadding="0" cellspacing="0" bordercolor="#004C86" class="tableBorder_r" >
<tr align="left" valign="top">
<td height="21" colspan="3">
<jsp:include page="../shouye.jsp"/>
</td>
</tr>
<tr>
<td width="192" height="80%" background="picture/left.jpg" scope="row">
<jsp:include page="../da.jsp"/> </td>
<td width="635" height="80%" scope="row">
<div align="center"><p> </p></div>
<table width="68%" border="1" align="center" cellpadding="1" cellspacing="0" bordercolor="#FFFFFF" bordercolordark="#819BBC" bordercolorlight="#FFFFFF">
<tr bgcolor="#EFF6FE">
<td height="28" colspan="4"><div align="center"><strong>查询职务信息</strong></div></td>
</tr>
<tr align="center" bgcolor="#EFF6FE">
<td width="14%" height="25">编号</td>
<td width="23%" bgcolor="#EFF6FE">名称</td>
<td width="30%">职责范围</td>
<td width="33%" bgcolor="#EFF6FE">操作</td>
</tr>
<%
for (int i =start; i < over; i++) {
DutyVO duty = (DutyVO) list.get(i);
%>
<tr align="center">
<td height="29"><%=duty.getDuty_number()%></td>
<td><%=duty.getDuty_name()%></td>
<td><%=duty.getDuty_remark()%></td>
<td><a href="dutyservlet?method=3&number=<%=duty.getDuty_number()%>">修改</a> <a href="dutyservlet?method=2&id=<%=duty.getId()%>">删除</a></td>
</tr>
<%}%>
</table>
<p></p>
<table width="68%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr align="center">
<td>共为<%=maxPage%>页</td>
<td>共有<%=pageNumber%>条记录</td>
<td>当前为第<%=number+1%>页</td>
<td><%if((number+1)==1){%> 上一页<%}else{%><a href="dutyservlet?method=0&i=<%=number-1%>">上一页</a></td><%}%>
<td><%if(maxPage==(number+1)){%>下一页<%}else{%><a href="dutyservlet?method=0&i=<%=number+1%>">下一页</a></td><%}%>
<td width="14%"><a href="dutyservlet?method=1">添加信息</a></td>
</tr>
</table><p> </p><p> </p><p> </p>
<p> </p>
<p> </p><p> </p>
</td>
</tr>
</table>
</body>
</html>
本文出自 “飞翔我的世界” 博客，请务必保留此出处http://youxue.blog.51cto.com/231393/51397
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.sql.ResultSet;
import java.util.*;
import com.domain.DutyVO;
import com.dao.DutyDao;
import com.tool.*;
//职务信息的servlet
public class DutyServlet extends HttpServlet {
private DutyVO vo = null;
private DutyDao dao = null;
private int method;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
request.setCharacterEncoding("gb2312");
method = Integer.parseInt(request.getParameter("method"));
vo = new DutyVO();
dao = new DutyDao();
switch (method) {
case 0: {
this.dutySelect(request, response); //查询全部信息
break;
}
}
public void dutySelect(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
try{
response.setContentType("text/html;charset=gb2312");
JDBConnection connection=new JDBConnection();
HttpSession session=request.getSession();
String accouts=(String)session.getAttribute("accouts");//得到员工工号
String rt_number=null;
String sql="select * from tb_employee where em_accouts='"+accouts+"'";//查询到员工表中的员工工号
ResultSet rs=connection.executeQuery(sql);//执行
if(rs.next()){
rt_number=rs.getString("em_number");
// System.out.print(number);
}
String sql2="select *from tb_right where rt_number ='"+rt_number+"' and rt_code="+1;
ResultSet rs2=connection.executeQuery(sql2);
if(rs2.next()){
List list = dao.dutySelect();
int pageNumber = list.size(); //计算出有多少条记录
int maxPage = pageNumber; //计算有多少页数
String number = request.getParameter("i");
if (maxPage % 5 == 0) {
maxPage = maxPage / 5;
}
else {
maxPage = maxPage / 5 + 1;
}
if (number == null) {
number = "0";
}
request.setAttribute("number", String.valueOf(number));
request.setAttribute("maxPage",String.valueOf(maxPage));
request.setAttribute("pageNumber",String.valueOf(pageNumber));
request.setAttribute("list", list);
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataDuty/dutySelect.jsp");
requestDispatcher.forward(request, response);
}
else{
PrintWriter out = response.getWriter();
out.print("<script language='javascript'> " +
"window.alert('您没有此权限功能');" +
"window.location='login.jsp'; </script>");
return;
}
}catch(Exception e){
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
}
===========================================================================
<%@page contentType="text/html; charset=gb2312"%>
<%@page import="com.domain.DutyVO"%>
<%@page import="java.sql.*"%>
<%@page import="java.util.*"%>
<%@ page import="com.dao.DutyDao" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="css/style.css" rel="stylesheet" type="text/css">
<title>查询职务信息</title>
</head>
<%
List list = (List) request.getAttribute("list");
int number=Integer.parseInt((String)request.getAttribute("number"));
int maxPage=Integer.parseInt((String)request.getAttribute("maxPage"));
int pageNumber=Integer.parseInt((String)request.getAttribute("pageNumber"));
int start=number * 5;//开始条数
int over=(number+1) * 5;//结束条数
int count=pageNumber-over;//还剩多少条记录
if(count<=0){
over=pageNumber;
}
%>
<body>
<table width="803" height="136" border="0" align="center" cellpadding="0" cellspacing="0" bordercolor="#004C86" class="tableBorder_r" >
<tr align="left" valign="top">
<td height="21" colspan="3">
<jsp:include page="../shouye.jsp"/>
</td>
</tr>
<tr>
<td width="192" height="80%" background="picture/left.jpg" scope="row">
<jsp:include page="../da.jsp"/> </td>
<td width="635" height="80%" scope="row">
<div align="center"><p> </p></div>
<table width="68%" border="1" align="center" cellpadding="1" cellspacing="0" bordercolor="#FFFFFF" bordercolordark="#819BBC" bordercolorlight="#FFFFFF">
<tr bgcolor="#EFF6FE">
<td height="28" colspan="4"><div align="center"><strong>查询职务信息</strong></div></td>
</tr>
<tr align="center" bgcolor="#EFF6FE">
<td width="14%" height="25">编号</td>
<td width="23%" bgcolor="#EFF6FE">名称</td>
<td width="30%">职责范围</td>
<td width="33%" bgcolor="#EFF6FE">操作</td>
</tr>
<%
for (int i =start; i < over; i++) {
DutyVO duty = (DutyVO) list.get(i);
%>
<tr align="center">
<td height="29"><%=duty.getDuty_number()%></td>
<td><%=duty.getDuty_name()%></td>
<td><%=duty.getDuty_remark()%></td>
<td><a href="dutyservlet?method=3&number=<%=duty.getDuty_number()%>">修改</a> <a href="dutyservlet?method=2&id=<%=duty.getId()%>">删除</a></td>
</tr>
<%}%>
</table>
<p></p>
<table width="68%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr align="center">
<td>共为<%=maxPage%>页</td>
<td>共有<%=pageNumber%>条记录</td>
<td>当前为第<%=number+1%>页</td>
<td><%if((number+1)==1){%> 上一页<%}else{%><a href="dutyservlet?method=0&i=<%=number-1%>">上一页</a></td><%}%>
<td><%if(maxPage==(number+1)){%>下一页<%}else{%><a href="dutyservlet?method=0&i=<%=number+1%>">下一页</a></td><%}%>
<td width="14%"><a href="dutyservlet?method=1">添加信息</a></td>
</tr>
</table><p> </p><p> </p><p> </p>
<p> </p>
<p> </p><p> </p>
</td>
</tr>
</table>
</body>
</html>
本文出自 “飞翔我的世界” 博客，请务必保留此出处http://youxue.blog.51cto.com/231393/51397
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