b_pagebean.java

基于ssh框架

package Module;

import java.io.*;
import java.util.ArrayList;

//后台分页Bean
public class b_PageBean implements Serializable {
    public b_PageBean() {
    }

    private int currPage=1; //当前页
    private int lastPage; //尾页
    private int record=5; //每页多少记录数
    private int totalRecord; //总共有多少条记录数
    private ArrayList al;
    public int getCurrPage() {
        return currPage;
    }

    public int getLastPage() {
        return lastPage;
    }

    public int getRecord() {
        return record;
    }

    public int getTotalRecord() {
        return totalRecord;
    }

    public void setCurrPage(int currPage) {
        this.currPage = currPage;
    }

    public void setLastPage(int lastPage) {

        this.lastPage = lastPage;
    }

    public void setRecord(int record) {
        this.record = record;
    }

    public void setTotalRecord(int totalRecord) {
        this.totalRecord = totalRecord;
    }

    public void setAl(ArrayList list) {
        if (list.size()==0) {
            currPage = 0;
            lastPage = 0;
            record = 0;
            totalRecord = 0;
            al = null;
        } else {
            totalRecord = list.size();
            lastPage = totalRecord % record == 0 ? totalRecord / record :
                       totalRecord / record + 1; //尾页或者是总共有几页
            if (currPage <= 1) {//首页时
                for (int i = 0; i < record; i++) {
                    if (al == null) {
                        al = new ArrayList();
                    }
                    currPage=1;
                    if(totalRecord<record)
                    record=totalRecord % record==0 ?record:totalRecord % record;
                    al.add(list.get(i));
                }
            } else if (currPage >= lastPage) {//尾页时
                for (int i = record * (lastPage - 1);
                        i <  totalRecord; i++) {
                    if (al == null) {
                        al = new ArrayList();
                    }

                    al.add(list.get(i));
                }
                currPage=lastPage;
                record=totalRecord % record==0?record:totalRecord % record;
            }else{//非首非尾页时
                for (int i = record * (currPage - 1) ;
                           i <  record * currPage; i++) {
                       if (al == null) {
                           al = new ArrayList();
                       }
                       al.add(list.get(i));
                   }

            }

        }
    }

    public ArrayList getAl() {
        return al;
    }


}