基于struts2+hibernate3+spring的分页组件

package com.demo.struts2.util; import java.util.ArrayList; import java.util.List; public class Pager { // 页面大小 protected int[] pageSizeList = { 10, 25, 50, 100, 200, 300, 500 }; // 一页显示的记录数 protected int pageSize = Constants.pageSize; // 当前页码 protected int pageNo = Constants.pageNo; // 记录总数 protected int rowCount = 0; // 总页数 protected int pageCount = 1; // 起始行数 protected int startIndex = 1; // 结束行数 protected int endIndex = 1; protected int firstPageNo = 1; protected int prePageNo = 1; protected int nextPageNo = 1; protected int lastPageNo = 1; // 结果集存放List protected List resultList; public Pager(int pageSize, int pageNo, int rowCount, List resultList) { this.pageSize = pageSize; this.pageNo = pageNo; this.rowCount = rowCount; this.resultList = resultList; if (rowCount % pageSize == 0) { this.pageCount = rowCount / pageSize; } else { this.pageCount = rowCount / pageSize + 1; } this.startIndex = pageSize * (pageNo - 1); this.endIndex = this.startIndex + resultList.size(); this.lastPageNo = this.pageCount; if (this.pageNo > 1) this.prePageNo = this.pageNo -1; if (this.pageNo == this.lastPageNo){ this.nextPageNo = this.lastPageNo; } else { this.nextPageNo = this.pageNo + 1; } } public Object[] getPageSizeIndexs() { List result = new ArrayList(pageSizeList.length); for (int i = 0; i < pageSizeList.length; i++) { result.add(String.valueOf(pageSizeList[i])); } Object[] indexs = (result.toArray()); return indexs; } public Object[] getPageNoIndexs() { List result = new ArrayList(pageCount); for (int i = 0; i < pageCount; i++) { result.add(String.valueOf(i + 1)); } Object[] indexs = (result.toArray()); return indexs; } public int getEndIndex() { return endIndex; } public void setEndIndex(int endIndex) { this.endIndex = endIndex; } public int getPageCount() { return pageCount; } public void setPageCount(int pageCount) { this.pageCount = pageCount; } public int getPageNo() { return pageNo; } public void setPageNo(int pageNo) { this.pageNo = pageNo; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int[] getPageSizeList() { return pageSizeList; } public void setPageSizeList(int[] pageSizeList) { this.pageSizeList = pageSizeList; } public List getResultList() { return resultList; } public void setResultList(List resultList) { this.resultList = resultList; } public int getRowCount() { return rowCount; } public void setRowCount(int rowCount) { this.rowCount = rowCount; } public int getStartIndex() { return startIndex; } public void setStartIndex(int startIndex) { this.startIndex = startIndex; } public int getFirstPageNo() { return firstPageNo; } public void setFirstPageNo(int firstPageNo) { this.firstPageNo = firstPageNo; } public int getLastPageNo() { return lastPageNo; } public void setLastPageNo(int lastPageNo) { this.lastPageNo = lastPageNo; } public int getNextPageNo() { return nextPageNo; } public void setNextPageNo(int nextPageNo) { this.nextPageNo = nextPageNo; } public int getPrePageNo() { return prePageNo; } public void setPrePageNo(int prePageNo) { this.prePageNo = prePageNo; } }