Posted on 2011-04-20 10:45
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java 代碼
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%@ page import="com.accp.Bean.*,com.accp.Dao.*,java.util.*" %>
<html>
<head>
<style>
table{font-size:14px}
A{text-decoration:none;}
A:hover{color:blue}
</style>
<title>Insert title here</title>
<script language="javaScript">
function Jumping(){
document.PageForm.submit();
return ;
}
function gotoPage(pagenum){
document.PageForm.jumpPage.value = pagenum;
document.PageForm.submit();
return ;
}
</script>
<style>
form{font-size:13px}
</style>
</head>
<% StringPager pager = new StringPager();
TopicDao dao=new TopicDao();
List lst=dao.selectAll();
pager.setTopicSelect(lst);// 需要分頁的文本
pager.setSizePerPage(5);// 每頁顯示行數
int curPage;//當前是第幾頁
int maxPage;//一共有多少頁
curPage=1;//當前頁
maxPage =pager.getTotalPage();
String jumpPage=(String)request.getParameter("jumpPage");
if (jumpPage!=null && !jumpPage.equals("")){
curPage = Integer.parseInt(jumpPage);
}
pager.setCurrentPage(curPage);
%>
<body>
<br><br>
<p align="center"><font size="5">歡迎進入帖子管理頁面</font></p>
<form name="PageForm" action="" method="post">
<table align="center" width="650" bgcolor="#FFFFFF" >
<tr><td colspan="3">每頁<%=pager.getSizePerPage()%>條
第<%=curPage%>頁
共<%=maxPage%>頁</td>
<td colspan="2" align="right">
<%if(curPage==1){
out.print(" 首頁 上一頁");
}else{ %>
<A HREF="javascript:gotoPage(1)">首頁</A>
<A HREF="javascript:gotoPage(<%=curPage-1%>)">上一頁</A>
<%}%>
<%if(curPage==maxPage){
out.print("下一頁 尾頁");
}else{ %>
<A HREF="javascript:gotoPage(<%=curPage+1%>)"> 下一頁</A>
<A HREF="javascript:gotoPage(<%=maxPage%>)"> 尾頁</A>
<%}%>
轉到第<SELECT name="jumpPage" onchange="Jumping()">
<% for(int i=1;i<=maxPage;i++) {
if (i== curPage){
%>
<OPTION selected value=<%=i%>><%=i%></OPTION>
<%}else{%>
<OPTION value=<%=i%>><%=i%></OPTION>
<%}}%>
</SELECT>頁</td></tr>
<tr bgcolor="#C0C0C0" align="center">
<td>序號</td>
<td>標題</td>
<td>內容</td>
<td>積分</td>
<td>等級</td>
</tr>
<%
for(int i=0;i<pager.getCurrentPagedText().size();i++){
Topic topic=(Topic)(pager.getCurrentPagedText().get(i));
%>
<tr bgcolor="#C0C0C0" align="center">
<td><%=topic.getId()%></td>
<td><%=subStr(topic.getTitle())%></td>
<td><%=subStr(topic.getConter())%></td>
<td><%=topic.getIntegral()%></td>
<td><%=topic.getGrade()%></td>
</tr>
<%} %>
<%!
//截取字符串方法
public String subStr(String str){
if(str==null||"".equals(str)){
return"";
}
if(str.length()>8){
return str.substring(0,8)+"
";
}else{
return str;
}
}
%>
</table>
</form>
</body>
</html>
package examples;
/*
* @(#)StringPager.java 1.00 2004-10-10
*
* Copyright 2004 . All rights reserved.
* PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/**
* StringPager, 字符串分頁.
*
* @author xxxxxx
* @version 1.00 2004-10-10
*/
public class StringPager {
/** 當前頁碼數 */
private int currentPage = 1;
/** 需要分頁的長字符串 */
private String text;
/** 每頁顯示字符數, 默認為 200 */
private int sizePerPage = 200;
/** 總頁數 */
private int totalPage;
public StringPager() {}
/**
* 返回當前頁的字符串.
* @return
*/
public String getCurrentPagedText() {
try {
if(getCurrentPage() < getTotalPage()) {
return getText().substring((getCurrentPage() - 1) * getSizePerPage(),
getCurrentPage() * getSizePerPage());
} else if(getTotalPage() > 0) {
return getText().substring((getCurrentPage() - 1) * getSizePerPage());
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* @return Returns the 當前頁碼數.
*/
public int getCurrentPage() {
if(currentPage <= 0) currentPage = 1;
return currentPage;
}
/**
* 設置當前頁碼, 從 1 開始.
*
* @param currentPage
* The 當前頁碼數 to set.
*/
public void setCurrentPage(int currentPage) {
if (currentPage <= 0) {
currentPage = 1;
}
this.currentPage = currentPage;
}
/**
* @return Returns the 總頁碼數, 如果沒有數據, 就返回 1.
*/
public int getTotalPage() {
if(getText() == null) totalPage = 0;
totalPage = (int) Math.ceil(1.0 * getText().length() / getSizePerPage()); // 總頁面數
if (totalPage == 0)
totalPage = 1;
return totalPage;
}
/**
* @param totalPage
* The totalPage to set.
*/
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public static void main(String[] args) {
StringPager pager = new StringPager();
pager.setSizePerPage(5);
pager.setText("12345678901");
pager.setCurrentPage(2);
System.out.println(pager.getTotalPage());
System.out.println(pager.getCurrentPagedText());
}
/**
* @return Returns the 每頁顯示字符數.
*/
public int getSizePerPage() {
return sizePerPage;
}
/**
* @param sizePerPage
* The 每頁顯示字符數 to set.
*/
public void setSizePerPage(int sizePerPage) {
this.sizePerPage = sizePerPage;
}
/**
* @return Returns the 需要分頁的長字符串.
*/
public String getText() {
return text;
}
/**
* @param text
* The 需要分頁的長字符串 to set.
*/
public void setText(String text) {
this.text = text;
}
}
<%@ page import="examples.*" %>
<%@ page contentType="text/html;charset=gb2312"%>
<script language="javaScript">
function Jumping(){
document.PageForm.submit();
return ;
}
function gotoPage(pagenum){
document.PageForm.jumpPage.value = pagenum;
document.PageForm.submit();
return ;
}
</script>
<%
StringPager pager = new StringPager();
pager.setText("12345678wfasdfae3fgsffd34235534634gfsfd65sfgssaeweasdfa901");// 需要分頁的長文本
pager.setSizePerPage(5);// 每頁顯示字符數
int curPage;//當前是第幾頁
int maxPage;//一共有多少頁
curPage=1;//當前頁
maxPage =pager.getTotalPage();
String jumpPage=(String)request.getParameter("jumpPage");
if (jumpPage!=null && !jumpPage.equals("")){
curPage = Integer.parseInt(jumpPage);
}
pager.setCurrentPage(curPage);
out.println("第"+curPage+"頁<br>");
out.println(pager.getCurrentPagedText());// 當前頁的字符串
%>
<form name="PageForm" action="" method="post">
每頁<%=pager.getSizePerPage()%>字
第<%=curPage%>頁
共<%=maxPage%>頁
<BR>
<%if(curPage==1){ out.print(" 首頁 上一頁"); }else{ %>
<A HREF="javascript:gotoPage(1)">首頁</A>
<A HREF="javascript:gotoPage(<%=curPage-1%>)">上一頁</A>
<%}%>
<%if(curPage==maxPage){ out.print("下一頁 尾頁"); }else{ %>
<A HREF="javascript:gotoPage(<%=curPage+1%>)"> 下一頁</A>
<A HREF="javascript:gotoPage(<%=maxPage%>)"> 尾頁</A>
<%}%>
轉到第<SELECT name="jumpPage" onchange="Jumping()">
<% for(int i=1;i<=maxPage;i++) {
if (i== curPage){
%>
<OPTION selected value=<%=i%>><%=i%></OPTION>
<%}else{%>
<OPTION value=<%=i%>><%=i%></OPTION>
<%}}%>
</SELECT>頁
</form>
第二種方法：
package com.accp.Bean;
import java.util.*;
public class StringPager {
/** 當前頁碼數 */
private int currentPage = 1;
/** 每頁顯示行數, 默認為 200 */
private int sizePerPage = 5;
/** 總頁數 */
private int totalPage;
/** 需要分頁的長字符串 */
private List topicSelect;
public StringPager() {
}
/**
* 返回當前頁的文本
*
* @return
*/
public List getCurrentPagedText() {
try {
if (getCurrentPage() < getTotalPage()) {
return getTopicSelect().subList(
(getCurrentPage() - 1) * getSizePerPage(),getCurrentPage() * getSizePerPage());
} else if (getTotalPage() > 0) {
return getTopicSelect().subList((getCurrentPage() - 1) * getSizePerPage(),getTopicSelect().size());
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* @return Returns the 當前頁碼數.
*/
public int getCurrentPage() {
if (currentPage <= 0)
currentPage = 1;
return currentPage;
}
/**
* 設置當前頁碼, 從 1 開始.
*
* @param currentPage
* The 當前頁碼數 to set.
*/
public void setCurrentPage(int currentPage) {
if (currentPage <= 0) {
currentPage = 1;
}
this.currentPage = currentPage;
}
/**
* @return Returns the 總頁碼數, 如果沒有數據, 就返回 1.
*/
public int getTotalPage() {
if (getTopicSelect() == null)
totalPage = 0;
totalPage = (int) Math.ceil(1.0 * getTopicSelect().size()
/ getSizePerPage()); // 總頁面數
if (totalPage == 0)
totalPage = 1;
return totalPage;
}
/**
* @param totalPage
* The totalPage to set.
*/
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
/**
* @return Returns the 每頁顯示行數.
*/
public int getSizePerPage() {
return sizePerPage;
}
/**
* @param sizePerPage
* The 每頁顯示行數to set.
*/
public void setSizePerPage(int sizePerPage) {
this.sizePerPage = sizePerPage;
}
/**
* @return Returns the 需要分頁的文本.
*/
public List getTopicSelect() {
return topicSelect;
}
public void setTopicSelect(List topicSelect) {
this.topicSelect = topicSelect;
}
}
jsp代碼
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%@ page import="com.accp.Bean.*,com.accp.Dao.*,java.util.*" %>
<html>
<head>
<style>
table{font-size:14px}
A{text-decoration:none;}
A:hover{color:blue}
</style>
<title>Insert title here</title>
<script language="javaScript">
function Jumping(){
document.PageForm.submit();
return ;
}
function gotoPage(pagenum){
document.PageForm.jumpPage.value = pagenum;
document.PageForm.submit();
return ;
}
</script>
<style>
form{font-size:13px}
</style>
</head>
<% StringPager pager = new StringPager();
TopicDao dao=new TopicDao();
List lst=dao.selectAll();
pager.setTopicSelect(lst);// 需要分頁的文本
pager.setSizePerPage(5);// 每頁顯示行數
int curPage;//當前是第幾頁
int maxPage;//一共有多少頁
curPage=1;//當前頁
maxPage =pager.getTotalPage();
String jumpPage=(String)request.getParameter("jumpPage");
if (jumpPage!=null && !jumpPage.equals("")){
curPage = Integer.parseInt(jumpPage);
}
pager.setCurrentPage(curPage);
%>
<body>
<br><br>
<p align="center"><font size="5">歡迎進入帖子管理頁面</font></p>
<form name="PageForm" action="" method="post">
<table align="center" width="650" bgcolor="#FFFFFF" >
<tr><td colspan="3">每頁<%=pager.getSizePerPage()%>條
第<%=curPage%>頁
共<%=maxPage%>頁</td>
<td colspan="2" align="right">
<%if(curPage==1){
out.print(" 首頁 上一頁");
}else{ %>
<A HREF="javascript:gotoPage(1)">首頁</A>
<A HREF="javascript:gotoPage(<%=curPage-1%>)">上一頁</A>
<%}%>
<%if(curPage==maxPage){
out.print("下一頁 尾頁");
}else{ %>
<A HREF="javascript:gotoPage(<%=curPage+1%>)"> 下一頁</A>
<A HREF="javascript:gotoPage(<%=maxPage%>)"> 尾頁</A>
<%}%>
轉到第<SELECT name="jumpPage" onchange="Jumping()">
<% for(int i=1;i<=maxPage;i++) {
if (i== curPage){
%>
<OPTION selected value=<%=i%>><%=i%></OPTION>
<%}else{%>
<OPTION value=<%=i%>><%=i%></OPTION>
<%}}%>
</SELECT>頁</td></tr>
<tr bgcolor="#C0C0C0" align="center">
<td>序號</td>
<td>標題</td>
<td>內容</td>
<td>積分</td>
<td>等級</td>
</tr>
<%
for(int i=0;i<pager.getCurrentPagedText().size();i++){
Topic topic=(Topic)(pager.getCurrentPagedText().get(i));
%>
<tr bgcolor="#C0C0C0" align="center">
<td><%=topic.getId()%></td>
<td><%=subStr(topic.getTitle())%></td>
<td><%=subStr(topic.getConter())%></td>
<td><%=topic.getIntegral()%></td>
<td><%=topic.getGrade()%></td>
</tr>
<%} %>
<%!
//截取字符串方法
public String subStr(String str){
if(str==null||"".equals(str)){
return"";
}
if(str.length()>8){
return str.substring(0,8)+"";
}else{
return str;
}
}
%>
</table>
</form>
</body>
</html>