分页类

package com.zhanggaosong.pro.utils;

public class PageModel {

private int pageSize;// 页面容量

private int pageCurrent;// 当前页面编号

private int pageTotal;// 总页数

private int recordTotal;// 总的记录数

public int getPageSize() {
return pageSize;
}

public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}

public int getPageCurrent() {
return pageCurrent;
}

public void setPageCurrent(int pageCurrent) {
this.pageCurrent = pageCurrent;
}

public int getPageTotal() {
return pageTotal;
}

public void setPageTotal(int pageTotal) {
this.pageTotal = pageTotal;
}

public int getRecordTotal() {
return recordTotal;
}

public void setRecordTotal(int recordTotal) {
this.recordTotal = recordTotal;
}

/**
* pageCurrent:从页面传递过来的页面编号 recordTotal：从数据库中查询出的总记录数
* pageSize:在每个模块中根据需求对其赋值 以下这个方法对上述的属性进行服务器端的处理
*/
public PageModel getPageModel(String pageCurrent, int recordTotal,
int pageSize) {


//对pageSize 赋值
this.pageSize=pageSize;
//对recordTotal赋值
this.recordTotal=recordTotal;

//设置总页数(算法)
if(this.recordTotal%this.pageSize==0)
{
this.pageTotal=this.recordTotal/this.pageSize;
}else{
this.pageTotal=this.recordTotal/this.pageSize+1;
}


//设置当前页码对pageCurrent赋值
try {
this.pageCurrent = Integer.valueOf(pageCurrent);
} catch (Exception e) {

this.pageCurrent = 1;
}
//判断页面编号的上限
if(this.pageCurrent<1){
this.pageCurrent=1;

}
//根据总页数去判断当前的页码的下限
if(this.pageCurrent>this.pageTotal){
this.pageCurrent=this.pageTotal;

}

return this;
}

}