ssh+dwr分页。。

/** * */ package com.demo.PageUtil; /** * @author nsoft_hp_01 * */ public class PageSS { /* 当前页号 */ private int currentPage = 1; /* 总页数 */ private int totalPage; /* 是否有上一页 */ private boolean hasPrePage = false; /* 是否有下一页 */ private boolean hasNextPage = true; /* 当前页记录开始索引 */ private int startIndex; /* 记录总数 */ private int totalRows; /* 每页记录数默认为10 */ private int pageSize = 12; /* 页号记录 */ private int[] pages; public PageSS() { } public PageSS(int totalRows,int pageSize) { this.totalRows = totalRows; setPageSize(pageSize); if (totalRows % pageSize == 0) { totalPage = totalRows / pageSize; } else { totalPage = totalRows / pageSize + 1; } pages = new int[totalPage]; for (int i = 0; i < totalPage; i++) { pages[i] = i + 1; } if (totalPage == 1||totalPage == 0) { hasPrePage = false; hasNextPage = false; } } public int getCurrentPage() { return currentPage; } public void setCurrentPage(int currentPage) { this.currentPage = currentPage; } public int getTotalPage() { return totalPage; } public void setTotalPage(int totalPage) { this.totalPage = totalPage; } 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 getStartIndex() { return startIndex; } public void setStartIndex(int startIndex) { this.startIndex = startIndex; } public int getTotalRows() { return totalRows; } public void setTotalRows(int totalRows) { this.totalRows = totalRows; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = (pageSize==0)?12:pageSize; } public int[] getPages() { return pages; } public void setPages(int[] pages) { this.pages = pages; } /** * 返回到第一页 */ public void first() { if(totalPage!=0)currentPage = 1; startIndex = 0; // 如果总记录数不足一页，则该页行数为记录数 if(currentPage>1){ hasPrePage = true; }else{ hasPrePage = false; } if(currentPage<totalPage){ hasNextPage = true; }else{ hasNextPage = false; } if (totalRows < pageSize) pageSize = totalRows; } /** * 上一页 */ public void previous() { if (currentPage == 1) { return; } // 设置第一页的hasPrePage; --currentPage; if(currentPage>1){ hasPrePage = true; }else{ hasPrePage = false; } if(currentPage<totalPage){ hasNextPage = true; }else{ hasNextPage = false; } startIndex = (currentPage - 1) * pageSize; } /** * 下一页 */ public void next() { if (currentPage < totalPage) { ++currentPage; } // 设置新的页面的行数 if(currentPage>1){ hasPrePage = true; }else{ hasPrePage = false; } if(currentPage<totalPage){ hasNextPage = true; }else{ hasNextPage = false; } startIndex = (currentPage - 1) * pageSize; if(currentPage == totalPage)pageSize = totalRows - startIndex; } /** * 最后一页 */ public void last() { currentPage = totalPage; if(currentPage>1){ hasPrePage = true; }else{ hasPrePage = false; } if(currentPage<totalPage){ hasNextPage = true; }else{ hasNextPage = false; } startIndex = (currentPage - 1) * pageSize; pageSize = totalRows - startIndex; } /** * 更新页面 */ public void refresh(int currentPage) { this.currentPage = currentPage; if(currentPage>1){ hasPrePage = true; }else{ hasPrePage = false; } if(currentPage<totalPage){ hasNextPage = true; }else{ hasNextPage = false; } if ((totalRows - startIndex) < pageSize) pageSize = totalRows - startIndex; if (currentPage > totalPage) { last(); } } }