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JAVA中的分頁程序怎樣編寫？
轉(zhuǎn)一個(gè)
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jsp分頁
%@ page contentType="text/html;charset=8859_1" %
%
//變量聲明
java.sql.Connection sqlCon; //數(shù)據(jù)庫連接對(duì)象
java.sql.Statement sqlStmt; //SQL語句對(duì)象
java.sql.ResultSet sqlRst; //結(jié)果集對(duì)象
java.lang.String strCon; //數(shù)據(jù)庫連接字符串
java.lang.String strSQL; //SQL語句
int intPageSize; //一頁顯示的記錄數(shù)
int intRowCount; //記錄總數(shù)
int intPageCount; //總頁數(shù)
int intPage; //待顯示頁碼
java.lang.String strPage;
int i;
//設(shè)置一頁顯示的記錄數(shù)
intPageSize = 2;
//取得待顯示頁碼
strPage = request.getParameter("page");
if(strPage==null){//表明在QueryString中沒有page這一個(gè)參數(shù)，此時(shí)顯示第一頁數(shù)據(jù)
intPage = 1;
}
else{//將字符串轉(zhuǎn)換成整型
intPage = java.lang.Integer.parseInt(strPage);
if(intPage1) intPage = 1;
}
//裝載JDBC驅(qū)動(dòng)程序
java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//設(shè)置數(shù)據(jù)庫連接字符串
strCon = "jdbc:oracle:thin:@linux:1521:ora4cweb";
//連接數(shù)據(jù)庫
sqlCon = java.sql.DriverManager.getConnection(strCon,"hzq","hzq");
//創(chuàng)建一個(gè)可以滾動(dòng)的只讀的SQL語句對(duì)象
sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
//準(zhǔn)備SQL語句
strSQL = "select name,age from test";
//執(zhí)行SQL語句并獲取結(jié)果集
sqlRst = sqlStmt.executeQuery(strSQL);
//獲取記錄總數(shù)
sqlRst.last();
intRowCount = sqlRst.getRow();
//記算總頁數(shù)
intPageCount = (intRowCount+intPageSize-1) / intPageSize;
//調(diào)整待顯示的頁碼
if(intPageintPageCount) intPage = intPageCount;
%
html
head
meta http-equiv="Content-Type" content="text/html; charset=gb2312"
titleJSP數(shù)據(jù)庫操作例程 - 數(shù)據(jù)分頁顯示 - JDBC 2.0 - Oracle/title
/head
body
table border="1" cellspacing="0" cellpadding="0"
tr
th姓名/th
th年齡/th
/tr
%
if(intPageCount0){
//將記錄指針定位到待顯示頁的第一條記錄上
sqlRst.absolute((intPage-1) * intPageSize + 1);
//顯示數(shù)據(jù)
i = 0;
while(iintPageSize !sqlRst.isAfterLast()){
%
tr
td%=sqlRst.getString(1)%/td
td%=sqlRst.getString(2)%/td
/tr
%
sqlRst.next();
i++;
}
}
%
/table
第%=intPage% gt;頁 共%=intPageCount%頁 %if(intPageintPageCount){%a href="jdbc20-oracle.jsp?page=%=intPage+1%"下一頁/a lt;%}% %if(intPage1){%a href="jdbc20-oracle.jsp?page=%=intPage-1%"上一頁/a lt;%}%
/body
/html
%
//關(guān)閉結(jié)果集
sqlRst.close();
//關(guān)閉SQL語句對(duì)象
sqlStmt.close();
//關(guān)閉數(shù)據(jù)庫
sqlCon.close();
%
求java分頁代碼，急用！
package common.util;
import java.util.*;
public class PageController implements IPageModel {
private Collection model;
//數(shù)據(jù)總行數(shù)
private int totalRowCount = 0; //
//總頁數(shù)
private int pageCount = 0;
//每頁應(yīng)顯示的行數(shù)
private int maxPageRowCount = 0;
//當(dāng)前頁行數(shù)
private int currPageRowCount = 0;
//當(dāng)前頁號(hào)
private int currPageNum;
//默認(rèn)構(gòu)造
public PageController() {
super();
}
//傳入模型
public PageController(Collection model) {
setPageController(model);
}
//設(shè)一個(gè)分頁模型
public void setPageController(Collection model) {
this.model = model;
this.totalRowCount = model.size();
}
/**
* 總頁數(shù)
* @return int
*/
public int getPageCount() {
return this.pageCount;
}
/**
* getPageContents
*
* @param intPageNum int
* @return Object
*/
public Object getPageContents(int intPageNum) {
//非法數(shù)據(jù)
if(intPageNum1){
intPageNum=1;
}
if(intPageNumpageCount){
intPageNum=pageCount;
}
//指定當(dāng)前頁
this.currPageNum=intPageNum;
int i = 0;
ArrayList arr = new ArrayList();
//如果是合法的范圍
if (intPageNum 0 intPageNum = pageCount) {
//計(jì)算該頁的開始號(hào)和結(jié)束號(hào)
int lfromrow = (intPageNum - 1) * maxPageRowCount;
arr = (ArrayList) getElementsAt(model, lfromrow, lfromrow + maxPageRowCount-1);
}
currPageNum=intPageNum;
return arr;
}
public Object getLastPage() {
return this.getPageContents(pageCount);
}
public Object getFirstPage() {
return this.getPageContents(0);
}
/**
* getCurrentPageRowsCount
*
* @return int
*/
public int getCurrentPageRowsCount() {
if(currPageNumpageCount){
return maxPageRowCount;
}
else{//最后一頁
return totalRowCount-(pageCount-1)*maxPageRowCount;
}
}
public int getCurrentPageNum(){
return currPageNum;
}
/**
* setMaxPageRows
*
* @return int
*/
public void setMaxPageRows(int rowCount) {
maxPageRowCount = rowCount;
//計(jì)算總頁數(shù)
if (totalRowCount % maxPageRowCount 0) { //有余數(shù)
pageCount = totalRowCount / maxPageRowCount + 1;
}
else {
pageCount = totalRowCount / maxPageRowCount;
}
}
/**
* getMaxPageRows
*/
public int getMaxPageRows() {
return maxPageRowCount;
}
//私有方法，返回集合中指定范圍的數(shù)據(jù)
private Object getElementsAt(Collection model, int fromIndex, int toIndex) {
Iterator iter = model.iterator();
ArrayList arr = new ArrayList();
if (iter != null) {
int i = 0;
while (iter.hasNext()) {
Object obj=iter.next();
if (i = fromIndex i = toIndex) {
arr.add(obj);
}
if (i toIndex) {
break;
}
i = i + 1;
}
}
return arr;
}
}
java中如何實(shí)現(xiàn)百度中的分頁
/**
*?分頁代碼
*?
*?@author?Star
*?@version?1.0?2008/07/08
*/
public?class?CutPage?implements?Serializable{
private?static?Log?log?=?LogFactory.getLog(CutPage.class);
private?int?curPageNo?=?0;?//?當(dāng)前頁數(shù)，從0開始
private?int?size?=?0;?//?所有數(shù)據(jù)條數(shù)
private?String?url;?//?頁面跳轉(zhuǎn)的路徑
private?List?showList;?//?當(dāng)前頁面需要顯示的數(shù)據(jù)列表
private?int?pageSize?=?20;//?每頁顯示的數(shù)據(jù)條數(shù)
private?int?groupSize?=?1;//?多少頁為一組
private?String?pageNavigation;//?導(dǎo)航條
/**
?*?每次通過sql語句從數(shù)據(jù)庫里面分組取出需要顯示的數(shù)據(jù)
?*?
?*?@param?request
?*????????????javax.servlet.http.HttpServletRequest對(duì)象
?*?@param?sql
?*????????????String?查詢數(shù)據(jù)庫的sql語句
?*?@param?pageSize
?*????????????int?每頁顯示的條數(shù)
?*?@param?groupSize
?*????????????int?分成多少組
?*?@param?url
?*????????????String?頁面跳轉(zhuǎn)的路徑，若沒有特殊的參數(shù)傳遞，可以傳入null或""，
?*????????????如是在aciton里面調(diào)用，并且action是繼承自DispatherAction的話最好傳入完整的路徑
?*/
public?void?init(HttpServletRequest?request,?String?sql,?int?pageSize,
int?groupSize,?int?pageNo,?String?url)?{
//?上一頁、下一頁跳轉(zhuǎn)路徑
if?(url?!=?null)?{
this.url?=?url;
}?else?{
this.url?=?request.getRequestURL()?+?"";
}
if?(pageSize??0)
this.pageSize?=?pageSize;//?每頁多少條記錄
if?(groupSize??0)
this.groupSize?=?groupSize;
//?當(dāng)前第幾頁
if?(pageNo??0)?{
this.curPageNo?=?0;
}?else?{
this.curPageNo?=?pageNo;
}
int?curGroup?=?this.curPageNo?/?this.groupSize?+?1;
//?是否是新的一組數(shù)據(jù)，如果是則到數(shù)據(jù)庫取數(shù)據(jù)
this.size?=?parseInt(request.getSession().getAttribute("page_all_size")
+?"",?0);
if?(this.curPageNo?%?this.groupSize?==?0
||?(request.getSession().getAttribute("cur_group")?!=?null??parseInt(
""?+?request.getSession().getAttribute("cur_group"),?1)?!=?curGroup)
||?this.size?==?0?||?request.getParameter("reload")?!=?null)?{
request.getSession().setAttribute("cur_group",?curGroup);
if?(pageNo??0
?request.getSession().getAttribute("page_sql")?!=?null)?{
sql?=?request.getSession().getAttribute("page_sql")?+?"";
}?else?{
request.getSession().setAttribute("page_sql",?sql);
}
this.size?=?getTotalCount(sql);
List?list?=?getPageData(sql,?(this.curPageNo?/?this.groupSize)
*?this.pageSize?*?this.groupSize,?this.pageSize
*?this.groupSize);
request.getSession().setAttribute("page_all_size",?this.size);
request.getSession().setAttribute("page_cur_list",?list);
this.setShowList(list);//?設(shè)置頁面上的顯示數(shù)據(jù)
}?else?{
this.setShowList((List)?request.getSession().getAttribute(
"page_cur_list"));//?設(shè)置頁面上的顯示數(shù)據(jù)
}
}
/**
?*?每次通過sql語句從數(shù)據(jù)庫里面分組取出需要顯示的數(shù)據(jù)
?*?
?*?@param?request
?*????????????javax.servlet.http.HttpServletRequest對(duì)象
?*?@param?sql
?*????????????String?查詢數(shù)據(jù)庫的sql語句
?*?@param?pageSize
?*????????????int?每頁顯示的條數(shù)
?*?@param?groupSize
?*????????????int?分成多少組
?*?@param?url
?*????????????String?頁面跳轉(zhuǎn)的路徑，若沒有特殊的參數(shù)傳遞，可以傳入null或""，
?*????????????如是在aciton里面調(diào)用，并且action是繼承自DispatherAction的話最好傳入完整的路徑
?*/
public?void?init(HttpServletRequest?request,?String?sql,?int?pageSize,
int?groupSize,?String?url)?{
//?當(dāng)前第幾頁
String?curPage?=?request.getParameter("pageNo");
init(request,?sql,?pageSize,?groupSize,?parseInt(curPage,?-1),?url);
}
/**
?*?每次通過sql語句從數(shù)據(jù)庫里面分組取出需要顯示的數(shù)據(jù)
?*?
?*?@param?request
?*????????????javax.servlet.http.HttpServletRequest對(duì)象
?*?@param?sql
?*????????????String?查詢數(shù)據(jù)庫的sql語句
?*?@param?pageSize
?*????????????int?每頁顯示的條數(shù)
?*?@param?groupSize
?*????????????int?分成多少組
?*?@param?url
?*????????????String?頁面跳轉(zhuǎn)的路徑，若沒有特殊的參數(shù)傳遞，可以傳入null或""，
?*????????????如是在aciton里面調(diào)用，并且action是繼承自DispatherAction的話最好傳入完整的路徑
?*/
public?void?init(HttpServletRequest?request,?String?sql,?int?pageSize,
int?groupSize,?int?pageNo)?{
init(request,?sql,?pageSize,?groupSize,?pageNo,?"");
}
太多了，貼不下，見附件
怎樣用java實(shí)現(xiàn)分頁顯示
實(shí)現(xiàn)原理很簡單，就是建立一個(gè)Page類，里面放當(dāng)前訪問的頁數(shù)和每一頁顯示的記錄行數(shù)。然后通過分頁計(jì)算就可以得出下列數(shù)據(jù)。
總頁數(shù) = 總記錄數(shù)/每頁大小,如果0!=總記錄數(shù)%每頁大小，那么總頁數(shù)再+1。
當(dāng)前頁數(shù)。
表記錄的起始位置=(當(dāng)前頁數(shù)-1)*每頁大小。
總記錄數(shù)（select count(*) from [表名] [where [條件]]。從數(shù)據(jù)庫中查詢得到)
每頁大小，可以固定，也可以從頁面?zhèn)鬟^來有了這幾個(gè)參數(shù)之后，就用sql語句查出對(duì)應(yīng)的記錄就可以了。
Java是一種可以撰寫跨平臺(tái)應(yīng)用程序的面向?qū)ο蟮某绦蛟O(shè)計(jì)語言。
Java?技術(shù)具有卓越的通用性、高效性、平臺(tái)移植性和安全性，廣泛應(yīng)用于PC、數(shù)據(jù)中心、游戲控制臺(tái)、科學(xué)超級(jí)計(jì)算機(jī)、移動(dòng)電話和互聯(lián)網(wǎng)，同時(shí)擁有全球最大的開發(fā)者專業(yè)社群。
它最初被命名為Oak，目標(biāo)設(shè)定在家用電器等小型系統(tǒng)的編程語言，來解決諸如電視機(jī)、電話、鬧鐘、烤面包機(jī)等家用電器的控制和通訊問題。
由于這些智能化家電的市場需求沒有預(yù)期的高，Sun放棄了該項(xiàng)計(jì)劃。就在Oak幾近失敗之時(shí)，隨著互聯(lián)網(wǎng)的發(fā)展，Sun看到了Oak在計(jì)算機(jī)網(wǎng)絡(luò)上的廣闊應(yīng)用前景，于是改造了Oak，以“Java”的名稱正式發(fā)布。
Java的主要工作是通過編程語言來制作互聯(lián)網(wǎng)頁面、制作動(dòng)態(tài)效果以及網(wǎng)站等技術(shù)。
誰能給我個(gè)完整的java 分頁代碼 謝謝了
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Enumeration;
import javax.servlet.http.HttpServletRequest;
import com.lqh.dao.db.DBCon;
public class PageDAO {
public static final String Text = "text";
public static final String Image = "image";
public static final String BbsText = "bbstext";
public static final String BbsImage = "bbsimage";
private HttpServletRequest request;
private int currentpage = 1; // 當(dāng)前是第幾頁
private int pagecount = 0; // 一共有多少頁
private int rscount = 0; // 一共有多少行
private int pagesize = 10; // 每頁有多少行[默認(rèn)為20行]
public PageDAO(HttpServletRequest request) {
this.request = request;
}
public int getCurrentpage() {
return currentpage;
}
public void setCurrentpage(int currentpage) {
this.currentpage = currentpage;
}
public int getPagecount() {
return pagecount;
}
public void setPagecount(int pagecount) {
this.pagecount = pagecount;
}
public int getPagesize() {
return pagesize;
}
public void setPagesize(int pagesize) {
this.pagesize = pagesize;
}
public int getRscount() {
return rscount;
}
public void setRscount(int rscount) {
this.rscount = rscount;
}
/**
* 傳入SQL語句獲取總記錄數(shù)
*/
public int getRsCountForRs(String sql) {
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
DBCon dbcon=new DBCon();
try {
conn = dbcon.getConn();
ps = conn.prepareStatement(sql);
rs = ps.executeQuery();
if (rs.next()) {
rs.last();
this.rscount = rs.getRow();
} else {
this.rscount = 0;
}
} catch (Exception ex) {
ex.printStackTrace();
this.rscount = 0;
} finally {
dbcon.tryClose(rs, ps, conn);
}
return this.rscount;
}
public int getRsCountForSQL(String sql) {
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
DBCon dbcon=new DBCon();
try {
conn = dbcon.getConn();
ps = conn.prepareStatement(sql);
rs = ps.executeQuery();
if (rs.next()) {
this.rscount = rs.getInt("rscount");
} else {
this.rscount = 0;
}
} catch (Exception ex) {
ex.printStackTrace();
this.rscount = 0;
} finally {
dbcon.tryClose(rs, ps, conn);
}
return this.rscount;
}
/**
* 獲取總頁數(shù)
*
* @return int
*/
public int getPageCount() {
try {
this.pagecount = ((this.rscount - 1) / this.pagesize) + 1;
} catch (Exception ex) {
this.pagecount = 0;
}
return this.pagecount;
}
/**
* 獲取當(dāng)前頁碼的設(shè)置
*
* @return int
*/
public int getCurrentPage() {
try {
if (this.request.getParameter("currentpage") != null
Integer.parseInt(this.request
.getParameter("currentpage")) 1) {
this.currentpage = Integer.parseInt(this.request
.getParameter("currentpage"));
} else {
this.currentpage = 1;
}
} catch (Exception ex) {
this.currentpage = 1;
}
return this.currentpage;
}
/**
* 分頁工具條
*
* @param fileName
* String
* @return String
*/
public String pagetool(String flag) {
StringBuffer str = new StringBuffer();
String url = this.getParamUrl();
int ProPage = this.currentpage - 1;
int Nextpage = this.currentpage + 1;
// 文字的分頁
if (flag.equals(PageDAO.Text)) {
str.append("form method='post' name='pageform' action=''");
str
.append("table style='color: windowframe' width='100%' border='0' cellspacing='0' cellpadding='0'");
str.append("tr");
str.append("td width='20%'/td");
str.append("td height='26'");
str.append("共有記錄" + this.rscount + "條?");
str.append("共" + this.pagecount + "頁?");
str.append("每頁" + this.pagesize + "記錄?");
str.append("現(xiàn)在" + this.currentpage + "/" + this.pagecount + "頁");
str.append("/tdtd");
if (this.currentpage 1) {
str.append("a href='" + url + "currentpage=1'首頁/a");
str.append("?");
str.append("a href='" + url + "currentpage=" + ProPage
+ "'上一頁/a");
str.append("?");
} else {
str.append("首頁");
str.append("?");
str.append("上一頁");
str.append("?");
}
if (this.currentpage this.pagecount) {
str.append("a href='" + url + "currentpage=" + Nextpage
+ "'下一頁/a");
str.append("?");
} else {
str.append("下一頁");
str.append("?");
}
if (this.pagecount 1 this.currentpage != this.pagecount) {
str.append("a href='" + url + "currentpage=" + pagecount
+ "'尾頁/a");
str.append("?");
} else {
str.append("尾頁");
str.append("?");
}
str.append("轉(zhuǎn)到");
str
.append("select name='currentpage' onchange='javascript:ChangePage(this.value);'");
for (int j = 1; j = pagecount; j++) {
str.append("option value='" + j + "'");
if (currentpage == j) {
str.append("selected");
}
str.append("");
str.append("" + j + "");
str.append("/option");
}
str.append("/select頁");
str.append("/tdtd width='3%'?/td/tr/table");
str.append("script language='javascript'");
str.append("function ChangePage(testpage){");
str.append("document.pageform.action='" + url
+ "currentpage='+testpage+'';");
str.append("document.pageform.submit();");
str.append("}");
str.append("/script");
str.append("/form");
} else if (flag.equals(PageDAO.Image)) {
/**
* 圖片的分頁
*/
} else if (flag.equals(PageDAO.BbsText)) {
/**
* 論壇形式的分頁[直接以數(shù)字方式體現(xiàn)]
*/
str
.append("table width='100%' border='0' cellspacing='0' cellpadding='0'");
str.append("tr");
str.append("td width='3%'?/td");
str.append("td height='26'");
str.append("記錄" + this.rscount + "條??");
str.append("共" + this.pagecount + "頁??");
str.append("每頁" + this.pagesize + "記錄??");
str.append("現(xiàn)在" + this.currentpage + "/" + this.pagecount + "頁");
str.append("/tdtd");
// 設(shè)定是否有首頁的鏈接
if (this.currentpage 1) {
str.append("a href='" + url + "currentpage=1'首頁/a");
str.append("??");
}
// 設(shè)定是否有上一頁的鏈接
if (this.currentpage 1) {
str.append("a href='" + url + "currentpage=" + ProPage
+ "'上一頁/a");
str.append("???");
}
// 如果總頁數(shù)只有10的話
if (this.pagecount = 10) {
for (int i = 1; i = this.pagecount; i++) {
if (this.currentpage == i) {
str.append("font color=red[" + i
+ "]/font??");
} else {
str.append("a href='" + url + "currentpage=" + i
+ "'" + i + "/a??");
}
}
} else {
// 說明總數(shù)有超過10頁
// 制定特環(huán)的開始頁和結(jié)束頁
int endPage = this.currentpage + 4;
if (endPage this.pagecount) {
endPage = this.pagecount;
}
int startPage = 0;
if (this.pagecount = 8 this.currentpage = 8) {
startPage = this.currentpage - 5;
} else {
// 表示從第一頁開始算
startPage = 1;
}
System.out.println(startPage);
System.out.println(endPage);
for (int i = startPage; i = endPage; i++) {
if (this.currentpage == i) {
str.append("font color=red[" + i
+ "]/font??");
} else {
str.append("a href='" + url + "currentpage=" + i
+ "'" + i + "/a??");
}
}
}
// 設(shè)定是否有下一頁的鏈接
if (this.currentpage this.pagecount) {
str.append("a href='" + url + "currentpage=" + Nextpage
+ "'下一頁/a");
str.append("??");
}
// 設(shè)定是否有尾頁的鏈接
if (this.pagecount 1 this.currentpage != this.pagecount) {
str.append("a href='" + url + "currentpage=" + pagecount
+ "'尾頁/a");
str.append("??");
}
str.append("/tdtd width='3%'?/td/tr/table");
} else if (flag.equals(PageDAO.BbsImage)) {
/**
* 論壇形式的分頁[以圖片的方式體現(xiàn)]
*/
// 設(shè)定分頁顯示的CSS
str.append("style");
str
.append("BODY {FONT-SIZE: 12px;FONT-FAMILY:宋體;WIDTH: 60%; PADDING-LEFT: 25px;}");
str
.append("DIV.meneame {PADDING-RIGHT: 3px; PADDING-LEFT: 3px; FONT-SIZE: 80%; PADDING-BOTTOM: 3px; MARGIN: 3px; COLOR: #ff6500; PADDING-TOP: 3px; TEXT-ALIGN: center}");
str
.append("DIV.meneame A {BORDER-RIGHT: #ff9600 1px solid; PADDING-RIGHT: 7px; BACKGROUND-POSITION: 50% bottom; BORDER-TOP: #ff9600 1px solid; PADDING-LEFT: 7px; BACKGROUND-IMAGE: url('"
+ this.request.getContextPath()
+ "/meneame.jpg'); PADDING-BOTTOM: 5px; BORDER-LEFT: #ff9600 1px solid; COLOR: #ff6500; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ff9600 1px solid; TEXT-DECORATION: none}");
str
.append("DIV.meneame A:hover {BORDER-RIGHT: #ff9600 1px solid; BORDER-TOP: #ff9600 1px solid; BACKGROUND-IMAGE: none; BORDER-LEFT: #ff9600 1px solid; COLOR: #ff6500; BORDER-BOTTOM: #ff9600 1px solid; BACKGROUND-COLOR: #ffc794}");
str
.append("DIV.meneame SPAN.current {BORDER-RIGHT: #ff6500 1px solid; PADDING-RIGHT: 7px; BORDER-TOP: #ff6500 1px solid; PADDING-LEFT: 7px; FONT-WEIGHT: bold; PADDING-BOTTOM: 5px; BORDER-LEFT: #ff6500 1px solid; COLOR: #ff6500; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ff6500 1px solid; BACKGROUND-COLOR: #ffbe94}");
str
.append("DIV.meneame SPAN.disabled {BORDER-RIGHT: #ffe3c6 1px solid; PADDING-RIGHT: 7px; BORDER-TOP: #ffe3c6 1px solid; PADDING-LEFT: 7px; PADDING-BOTTOM: 5px; BORDER-LEFT: #ffe3c6 1px solid; COLOR: #ffe3c6; MARGIN-RIGHT: 3px; PADDING-TOP: 5px; BORDER-BOTTOM: #ffe3c6 1px solid}");
str.append("/style");
str.append("div class=\"meneame\"");
// 判定是否有上一頁
if (this.currentpage 1) {
str.append("a href='" + url
+ "currentpage=1' hidefocus=\"true\"首頁/a");
str.append("???");
str.append("a href='" + url + "currentpage=" + ProPage
+ "' hidefocus=\"true\"上一頁/a");
str.append("???");
} else {
str.append("span class=\"disabled\"首頁/span");
str.append("??");
str.append("span class=\"disabled\"上一頁/span");
str.append("??");
}
// 顯示中間的圖片
if (this.pagecount = 10) {
for (int i = 1; i = this.pagecount; i++) {
if (this.currentpage == i) {
str.append("span class=\"current\"" + i + "/span");
} else {
str.append("a href='" + url + "currentpage=" + i
+ "' hidefocus=\"true\"" + i
+ "/a??");
}
}
} else {
// 說明總數(shù)有超過10頁
// 制定特環(huán)的開始頁和結(jié)束頁
int endPage = this.currentpage + 4;
if (endPage this.pagecount) {
endPage = this.pagecount;
}
int startPage = 0;
if (this.pagecount = 8 this.currentpage = 8) {
startPage = this.currentpage - 5;
} else {
// 表示從第一頁開始算
startPage = 1;
}
System.out.println(startPage);
System.out.println(endPage);
for (int i = startPage; i = endPage; i++) {
if (this.currentpage == i) {
str.append("span class=\"current\"" + i + "/span");
} else {
str.append("a href='" + url + "currentpage=" + i
+ "' hidefocus=\"true\"" + i
+ "/a??");
}
}
}
// 判斷下一頁和尾頁
if (this.currentpage this.pagecount) {
if (this.currentpage this.pagecount - 10) {
str.append("...");
str.append("a href='" + url + "currentpage="
+ (this.pagecount - 1) + "' hidefocus=\"true\""
+ (this.pagecount - 1) + "/a??");
str.append("a href='" + url + "currentpage="
+ this.pagecount + "' hidefocus=\"true\""
+ this.pagecount + "/a??");
}
str.append("a href='" + url + "currentpage=" + Nextpage
+ "' hidefocus=\"true\"下一頁/a");
str.append("??");
} else {
str.append("span class=\"disabled\"下一頁/span");
str.append("??");
}
if (this.pagecount 1 this.currentpage != this.pagecount) {
str.append("a href='" + url + "currentpage=" + pagecount
+ "' hidefocus=\"true\"尾頁/a");
str.append("??");
} else {
str.append("span class=\"disabled\"尾頁/span");
str.append("??");
}
str.append("/div");
}
return str.toString();
}
public String getParamUrl() {
String url = "";
url = this.request.getRequestURI().toString();
if (url.indexOf("?") == -1) {
url = url + "?";
}
String totalParams = "";
Enumeration params = this.request.getParameterNames();// 得到所有參數(shù)名
while (params.hasMoreElements()) {
String tempName = params.nextElement().toString();
String tempValue = this.request.getParameter(tempName);
if (tempValue != null !tempValue.equals("")
!tempName.equals("currentpage")) {
if (totalParams.equals("")) {
totalParams = totalParams + tempName + "=" + tempValue;
} else {
totalParams = totalParams + "" + tempName + "="
+ tempValue;
}
}
}
String totalUrl = url + totalParams;
return totalUrl;
}
}
分享題目：java分頁的后臺(tái)代碼 java分頁實(shí)現(xiàn)
URL地址：http://fisionsoft.com.cn/article/hjhcgs.html
