java怎么实现分页
1.PaginationTable.java
package com.sinoest.train.common;
import java.util.List;
/**
* 分页表
* @author 李易烜-修改
* 2009-6-17
*/
public class PaginationTable {
private List<?> entryList;//> 数据
private int totalNumOfRows;// 总行数
private int rowsPerPage = 10;// 每页行数
private int beginIndex = 0;//---> 当前页起始行
private int endIndex;//-----> 终止页
private int pageIndex;//----> 当前页
private int pageCount;//----> 总页数
public PaginationTable(){ }
public PaginationTable(int totalNumOfRows, int pageIndex) {
//super();
if(pageIndex<=0){
pageIndex=1;
}
this.totalNumOfRows = totalNumOfRows;
if(totalNumOfRows%rowsPerPage==0){
this.pageCount = this.totalNumOfRows/rowsPerPage;
}else {
this.pageCount = this.totalNumOfRows/rowsPerPage+1;
}
if(pageIndex > pageCount){
pageIndex = pageCount;
}
this.pageIndex = pageIndex;
if(totalNumOfRows > 0){
this.beginIndex = (pageIndex-1)*rowsPerPage;
}
this.endIndex = pageIndex*rowsPerPage;
endIndex = endIndex>this.totalNumOfRows ? this.totalNumOfRows : endIndex;
}
public PaginationTable(int rowsPerPage, int totalNumOfRows, int pageIndex) {
//super();
this.rowsPerPage = rowsPerPage;
if(pageIndex<=0){
pageIndex=1;
}
this.totalNumOfRows = totalNumOfRows;
if(totalNumOfRows%rowsPerPage==0){
this.pageCount = this.totalNumOfRows/rowsPerPage;
}else {
this.pageCount = this.totalNumOfRows/rowsPerPage+1;
}
if(pageIndex > pageCount){
pageIndex = pageCount;
}
this.pageIndex = pageIndex;
if(totalNumOfRows > 0){
this.beginIndex = (pageIndex-1)*rowsPerPage;
}
this.endIndex = pageIndex*rowsPerPage;
endIndex = endIndex>this.totalNumOfRows ? this.totalNumOfRows : endIndex;
}
/** 总页数，最少一页，0行也按一页计算 */
public int getTotalNumOfPage() {
return this.totalNumOfRows / this.rowsPerPage + 1;
}
/** 数据 */
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