* 封裝分頁邏輯
* @author administrator
public class pagemodel{
//結果集
private listlist;
//記錄數
private int totalrecords;
//每頁多少條資料
private int pagesize;
//第幾頁
private int pageno;
* 返回總頁數
* @return
public int gettotalpages() {
return (totalrecords + pagesize - 1) / pagesize;
* 首頁
* @return
public int gettoppageno() {
return 1;
* @return
public int getpreviouspageno() {
if (this.pageno <= 1) {
return 1;
return this.pageno - 1;
* @return
public int getnextpageno() {
if (this.pageno >= getbuttompageno()) {
return getbuttompageno();
return this.pageno + 1;
* 尾頁
* @return
public int getbuttompageno() {
return gettotalpages();
public listgetlist() {
return list;
public void setlist(listlist) {
this.list = list;
public int gettotalrecords() {
return totalrecords;
public void settotalrecords(int totalrecords) {
this.totalrecords = totalrecords;
public int getpagesize() {
return pagesize;
public void setpagesize(int pagesize) {
this.pagesize = pagesize;
public int getpageno() {
return pageno;
public void setpageno(int pageno) {
this.pageno = pageno;
另一種寫法：
public class pageutils {
* 預設第一頁頁碼
public static final int index_page_num = 1;
public final static int page_size = 15; // 預設分頁大小
* 計算頁數
public static int pagecount(int recordcount, int perpage) {
int pc = (int) math.ceil(recordcount / (double) perpage);
if (pc == 0)
pc = 1;
return pc;
* 計算查詢時,資料當前位置(fromindex)
public static int fromidx(int page, int fetchcount) {
return (page - index_page_num) * fetchcount;
* 分頁條
* @param currentpage
* 當前頁數
* @param fetchcount
* 每頁顯示數
* @param recordcount
* 資料總數
* @param pagepath
* 頁面路徑
* @return
public static string getpagestr(int currentpage, int fetchcount,
int recordcount, string filename,string suffix) {
// string filename = pagepath.split("\\.")[0];
// string suffix = "." + pagepath.split("\\.")[1];
stringbuffer result = new stringbuffer();
string blankstr = " ";
int maxlength = 4;
int pagecount = pagecount(recordcount, fetchcount);
if (pagecount > index_page_num) {
if (currentpage > index_page_num) {
if (pagecount > index_page_num) {
for (int cou = ((currentpage - maxlength) > 0 ? maxlength
: currentpage - 1); cou >= 1; cou--) {
for (int cou = 1; cou <= ((currentpage + maxlength) > pagecount ? pagecount
- currentpage
: maxlength); cou++) {
+ (currentpage + cou) + "");
if (pagecount > index_page_num) {
if (currentpage < pagecount) {
return result.tostring();
* 動態分頁條(自動帶"page=?"的引數)
* @param currentpage
* 當前頁數
* @param fetchcount
* 每頁顯示數
* @param recordcount
* 資料總數
* @param pagepath
* 頁面路徑
* @param reqparam
* 頁面引數
* @return
public static string getparampagestr(int currentpage, int fetchcount,
int recordcount, string pagepath, string reqparam) {
string filename = pagepath.split("\\.")[0];
string suffix = "." + pagepath.split("\\.")[1];
stringbuffer result = new stringbuffer();
string blankstr = " ";
int maxlength = 4;
int pagecount = pagecount(recordcount, fetchcount);
if (pagecount > index_page_num) {
if (currentpage > index_page_num) {
if (pagecount > index_page_num) {
for (int cou = ((currentpage - maxlength) > 0 ? maxlength
: currentpage - 1); cou >= 1; cou--) {
for (int cou = 1; cou <= ((currentpage + maxlength) > pagecount ? pagecount
- currentpage
: maxlength); cou++) {
if (pagecount > index_page_num) {
if (currentpage < pagecount) {
return result.tostring();
public static void main(string args){
system.out.println(getparampagestr(2,1,3,"555.shtml",".shtml"));
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