誰(shuí)能給我個(gè)完整的java 分頁(yè)代碼 謝謝了

import java.sql.Connection;

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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(yè)

private int pagecount = 0; // 一共有多少頁(yè)

private int rscount = 0; // 一共有多少行

private int pagesize = 10; // 每頁(yè)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(yǔ)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(yè)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(yè)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(yè)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(yè)

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(yè)?");

str.append("每頁(yè)" + this.pagesize + "記錄?");

str.append("現(xiàn)在" + this.currentpage + "/" + this.pagecount + "頁(yè)");

str.append("/tdtd");

if (this.currentpage 1) {

str.append("a href='" + url + "currentpage=1'首頁(yè)/a");

str.append("?");

str.append("a href='" + url + "currentpage=" + ProPage

+ "'上一頁(yè)/a");

str.append("?");

} else {

str.append("首頁(yè)");

str.append("?");

str.append("上一頁(yè)");

str.append("?");

}

if (this.currentpage this.pagecount) {

str.append("a href='" + url + "currentpage=" + Nextpage

+ "'下一頁(yè)/a");

str.append("?");

} else {

str.append("下一頁(yè)");

str.append("?");

}

if (this.pagecount 1 this.currentpage != this.pagecount) {

str.append("a href='" + url + "currentpage=" + pagecount

+ "'尾頁(yè)/a");

str.append("?");

} else {

str.append("尾頁(yè)");

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(yè)");

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(yè)

*/

} else if (flag.equals(PageDAO.BbsText)) {

/**

* 論壇形式的分頁(yè)[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(yè)??");

str.append("每頁(yè)" + this.pagesize + "記錄??");

str.append("現(xiàn)在" + this.currentpage + "/" + this.pagecount + "頁(yè)");

str.append("/tdtd");

// 設(shè)定是否有首頁(yè)的鏈接

if (this.currentpage 1) {

str.append("a href='" + url + "currentpage=1'首頁(yè)/a");

str.append("??");

}

// 設(shè)定是否有上一頁(yè)的鏈接

if (this.currentpage 1) {

str.append("a href='" + url + "currentpage=" + ProPage

+ "'上一頁(yè)/a");

str.append("???");

}

// 如果總頁(yè)數(shù)只有10的話(huà)

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(shuō)明總數(shù)有超過(guò)10頁(yè)

// 制定特環(huán)的開(kāi)始頁(yè)和結(jié)束頁(yè)

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(yè)開(kāi)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(yè)的鏈接

if (this.currentpage this.pagecount) {

str.append("a href='" + url + "currentpage=" + Nextpage

+ "'下一頁(yè)/a");

str.append("??");

}

// 設(shè)定是否有尾頁(yè)的鏈接

if (this.pagecount 1 this.currentpage != this.pagecount) {

str.append("a href='" + url + "currentpage=" + pagecount

+ "'尾頁(yè)/a");

str.append("??");

}

str.append("/tdtd width='3%'?/td/tr/table");

} else if (flag.equals(PageDAO.BbsImage)) {

/**

* 論壇形式的分頁(yè)[以圖片的方式體現(xiàn)]

*/

// 設(shè)定分頁(yè)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(yè)

if (this.currentpage 1) {

str.append("a href='" + url

+ "currentpage=1' hidefocus=\"true\"首頁(yè)/a");

str.append("???");

str.append("a href='" + url + "currentpage=" + ProPage

+ "' hidefocus=\"true\"上一頁(yè)/a");

str.append("???");

} else {

str.append("span class=\"disabled\"首頁(yè)/span");

str.append("??");

str.append("span class=\"disabled\"上一頁(yè)/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(shuō)明總數(shù)有超過(guò)10頁(yè)

// 制定特環(huán)的開(kāi)始頁(yè)和結(jié)束頁(yè)

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(yè)開(kāi)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(yè)和尾頁(yè)

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(yè)/a");

str.append("??");

} else {

str.append("span class=\"disabled\"下一頁(yè)/span");

str.append("??");

}

if (this.pagecount 1 this.currentpage != this.pagecount) {

str.append("a href='" + url + "currentpage=" + pagecount

+ "' hidefocus=\"true\"尾頁(yè)/a");

str.append("??");

} else {

str.append("span class=\"disabled\"尾頁(yè)/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;

}

}

求java分頁(yè)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(yè)數(shù)

private int pageCount = 0;

//每頁(yè)應(yīng)顯示的行數(shù)

private int maxPageRowCount = 0;

//當(dāng)前頁(yè)行數(shù)

private int currPageRowCount = 0;

//當(dāng)前頁(yè)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(yè)模型

public void setPageController(Collection model) {

this.model = model;

this.totalRowCount = model.size();

}

/**

* 總頁(yè)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(yè)

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(yè)的開(kāi)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(yè)

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(yè)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 中查詢(xún)數(shù)據(jù)庫(kù)后的分頁(yè)咋做，管理系統(tǒng)的查詢(xún)顯示方面，上一頁(yè)，下一頁(yè)的實(shí)現(xiàn)

數(shù)據(jù)庫(kù) 分頁(yè)的查詢(xún)語(yǔ)句為 select top pageSize * from objectTable obj where obj.id not in(select top (pageNumber-1)*pageSize id from objectTable) 然后將查詢(xún)結(jié)果放到一個(gè)List集合中 返回回去。在頁(yè)面進(jìn)行顯示就可以了。但注意的是頁(yè)面要控制好當(dāng)前頁(yè)碼。 pageSize： 每頁(yè)顯示的信息條數(shù)、pageNumber:當(dāng)前頁(yè)碼

java 怎么分頁(yè)?

通過(guò)rs.next()進(jìn)行分頁(yè)，首先用rs.absolute(0)定位到某條記錄。然后循環(huán)取數(shù)例如：1-10 可以for(int i=0;i10;i++){rs.next()}

用JAVA實(shí)現(xiàn)分頁(yè)查詢(xún)

可以定義一個(gè)實(shí)體類(lèi)，該類(lèi)包含ArrayList（n條記錄），havePre（是否有上一頁(yè)），havaNext（是否有下一個(gè)）和index（當(dāng)前頁(yè)碼）。然后去數(shù)據(jù)庫(kù)查數(shù)據(jù)，將數(shù)據(jù)封裝成以上實(shí)體類(lèi)就能實(shí)現(xiàn)了。

文章標(biāo)題：java分頁(yè)查詢(xún)的代碼 java中分頁(yè)的sql怎么寫(xiě)
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