Struts2+jsp自定义分页组件以及源码

package com.zoo.pojo; /** * @Email 22582416@qq.com * @author 张如利 * @version 创建时间:2011-4-2上午11:43:01 */ public class Page { /** 当前页 */ private int pageNo; /** 每页数据量 */ private int pageSize; /** 总数据量 */ private int allCount; /** 总页数 */ private int allPage; /** 每页开始 */ private int recordStart; /** 每页结束 */ private int recordEnd; /** 是否有上一页 */ private boolean hasPrePage; /** 是否有下一页 */ private boolean hasNextPage; /** 显示页数 */ private int showCount; /** 显示开始 */ private int showStart; /** 显示结束 */ private int showEnd; 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 getAllCount() { return allCount; } public void setAllCount(int allCount) { this.allCount = allCount; } public int getAllPage() { return allPage; } public void setAllPage(int allPage) { this.allPage = allPage; } public int getRecordStart() { return recordStart; } public void setRecordStart(int recordStart) { this.recordStart = recordStart; } public int getRecordEnd() { return recordEnd; } public void setRecordEnd(int recordEnd) { this.recordEnd = recordEnd; } 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; } public int getShowCount() { return showCount; } public void setShowCount(int showCount) { this.showCount = showCount; } public int getShowStart() { return showStart; } public void setShowStart(int showStart) { this.showStart = showStart; } public int getShowEnd() { return showEnd; } public void setShowEnd(int showEnd) { this.showEnd = showEnd; } public Page() { pageNo = 1; pageSize = 0; allPage = 1; recordStart = 0; recordEnd = 0; hasPrePage = false; hasNextPage = false; init(); } public Page(int pageNo, int allCount) { this.pageNo = pageNo; this.pageSize = 12; this.allCount = allCount; this.showCount = 9 ; this.allPage = 1; this.recordStart = 0; this.recordEnd = 0; hasPrePage = false; hasNextPage = false; init(); } public Page(int pageNo, int pageSize, int allCount) { this.pageNo = pageNo; this.pageSize = pageSize; this.allCount = allCount; this.showCount = 9 ; this.allPage = 1; this.recordStart = 0; this.recordEnd = 0; hasPrePage = false; hasNextPage = false; init(); } public Page(int pageNo, int pageSize, int allCount, int showCount) { this.pageNo = pageNo; this.pageSize = pageSize; this.allCount = allCount; this.showCount = showCount ; this.allPage = 1; this.recordStart = 0; this.recordEnd = 0; hasPrePage = false; hasNextPage = false; init(); } public void init() { allPage = allCount%pageSize==0 ? allCount/pageSize : allCount/pageSize+1 ; if (pageNo < 1) { pageNo = 1; } if(pageNo>allPage){ pageNo = allPage ; } recordStart = (pageNo-1) * pageSize + 1; recordEnd = Math.min(recordStart+pageSize-1, allCount); if (pageNo > 1) { hasPrePage = true; } if (pageNo < allPage) { hasNextPage = true; } showCount = Math.min(showCount, allPage); if (showCount==allPage) { showStart = 1; showEnd = showCount; } else { if (pageNo <= (showCount+1)/2) { showStart = 1; showEnd = showCount ; } else { if (pageNo > allPage - showCount/2 ) { showStart = allPage - showCount + 1 ; showEnd = allPage ; } else{ showStart = pageNo - showCount/2; showEnd = pageNo + showCount/2 ; } } } } }