Simple implementation of JSP paging _jsp programming

Data paging, in the development of essential, because the amount of data is too large, have to deal with. But for pagination, there are a number of ways, such as using the limit of SQL statements, or using jquery plug-ins. But the underlying logic is all that is needed.
The code for the Bean object is posted here, along with a helper class. I do this project is a personal blog, is a personal site it.

(only some of the underlying logic code is attached)

Page.java

Package cn.edu.ldu.util;     public class Page {private int everypage;     Number of display per page private int totalpage;     Total pages private int totalcount;    Total quantity private int currentpage;     Current page private int beginindex;   Start Page Private Boolean hasprepage;  Whether there is a previous page private Boolean hasnextpage; Whether there is a next page public page () {} public page (int everypage, int totalpage, int totalcount, int currentpage,int Begininde
    X, Boolean hasprepage, Boolean hasnextpage) {this.everypage = Everypage;
    This.totalpage = Totalpage;
    This.totalcount = TotalCount;
    This.currentpage = CurrentPage;
    This.beginindex = Beginindex;
    This.hasprepage = Hasprepage;
  This.hasnextpage = Hasnextpage;
  public int geteverypage () {return everypage;
  The public void seteverypage (int everypage) {this.everypage = Everypage;
  public int gettotalpage () {return totalpage;
  The public void settotalpage (int totalpage) {this.totalpage = Totalpage; } public int Gettotalcount () {return totalcount;
  The public void Settotalcount (int totalcount) {this.totalcount = TotalCount;
  public int getcurrentpage () {return currentpage;
  The public void setcurrentpage (int currentpage) {this.currentpage = CurrentPage;
  public int Getbeginindex () {return beginindex;
  The public void Setbeginindex (int beginindex) {this.beginindex = Beginindex;
  public Boolean ishasprepage () {return hasprepage;
  } public void Sethasprepage (Boolean hasprepage) {this.hasprepage = Hasprepage;
  public Boolean ishasnextpage () {return hasnextpage;
  } public void Sethasnextpage (Boolean hasnextpage) {this.hasnextpage = Hasnextpage;

 }

}

Pageutil.java

Package cn.edu.ldu.util; public class Pageutil {//Create paging Information object public static Page createpage (int everypage,int totalcount,int currentpage) {E
    Verypage = Geteverypage (everypage);
    CurrentPage = Getcurrentpage (currentpage);
    int totalpage = Gettotalpage (Everypage, totalcount);
    int beginindex = Getbeginindex (Everypage, currentpage);
    Boolean hasprepage = Gethasprepage (currentpage);
    Boolean hasnextpage = Gethasnextpage (Totalpage, currentpage);
  return new Page (Everypage, Totalpage,totalcount, CurrentPage, Beginindex, Hasprepage, hasnextpage);
  //Get the number of display records per page public static int geteverypage (int everypage) {return everypage = 0? 10:everypage;
  //Get current page public static int getcurrentpage (int currentpage) {return currentpage = 0? 10:currentpage;
    //Get total number of pages public static int gettotalpage (int everypage,int totalcount) {int totalpage=0; To determine if each page is full, page +1 if (totalcount!=0 && totalcount%everypage==0) {TOtalpage=totalcount/everypage;
    else {totalpage=totalcount/everypage+1;
  return totalpage;
  ///Get start position public static int Getbeginindex (int everypage,int currentpage) {return everypage* (currentPage-1);

  //Determine if there is a previous page public static Boolean gethasprepage (int currentpage) {return currentpage== 1? false:true; //Determine if there is a next page public static Boolean gethasnextpage (int totalpage, int currentpage) {return (currentpage = = Totalp Age) | | (totalpage = 0)?
  False:true;


 }

}

Every time I just need to call it.

The number of pages to be displayed per page, total records, current page
page=pageutil.createpage (5, Diarydao.findallcount (), currentpage);

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.