分页最佳解决方案 from skyform brother fa

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package com.skycloud.mini.common.util;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import com.skycloud.mini.service.impl.IbmHmcServiceImpl;public class PageUtils {private static final Log log = LogFactory.getLog(IbmHmcServiceImpl.class);/** * 获取分页参数 * @param pageSize * @param pageNumber * @param totalSize * @return * */public static PageObject getPageObject(PageObject page){int totalSize = page.getTotalSize();int pageSize = page.getPageSize();if(pageSize == 0){pageSize = 10;}int pageNumber = page.getPageNumber();if(pageNumber <= 0){log.error("bnussiness error : pageNumber ="+pageNumber);}int totalPage = totalSize / pageSize;if(totalSize % pageSize != 0){totalPage++;}page.setTotalPage(totalPage);int beginNum = pageSize * (pageNumber-1);if(beginNum > totalSize){beginNum = totalSize;}page.setBeginNumber(beginNum);int endNum = beginNum + pageSize -1;if(endNum > totalSize){endNum = totalSize;}page.setEndNumber(endNum);return page;}}

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