文件名称：JSP实现表格分页，表格分页类实现
文件大小：3KB
文件格式：JAVA
更新时间：2011-10-20 05:02:26
JSP实现表格分页
package com; public class Pager { private int totalRows = 0; // 记录总数 private int totalPages = 0; // 总页数 private int pageSize = 10; // 每页显示数据条数，默认为10条记录 private int currentPage = 1; // 当前页数 private boolean hasPrevious = false; // 是否有上一页 private boolean hasNext = false; // 是否有下一页 public int getSearchFrom() { return (currentPage - 1) * pageSize; } public Pager() { } public void init(int totalRows) { this.totalRows = totalRows; this.totalPages = ((totalRows + pageSize) - 1) / pageSize; refresh(); // 刷新当前页面信息 } /** * * @return Returns the currentPage. * */ public int getCurrentPage() { return currentPage; } /** * * @param currentPage * current page * */ public void setCurrentPage(int currentPage) { this.currentPage = currentPage; refresh(); } /** * * @return Returns the pageSize. * */ public int getPageSize() { return pageSize; } /** * * @param pageSize * The pageSize to set. * */ public void setPageSize(int pageSize) { this.pageSize = pageSize; refresh(); } /** * * @return Returns the totalPages. * */ public int getTotalPages() { return totalPages; } /** * * @param totalPages * The totalPages to set. * */ public void setTotalPages(int totalPages) { this.totalPages = totalPages; refresh(); } /** * * @return Returns the totalRows. * */ public int getTotalRows() { return totalRows; } /** * * @param totalRows * The totalRows to set. * */ public void setTotalRows(int totalRows) { this.totalRows = totalRows; refresh(); } // 跳到第一页 public void first() { currentPage = 1; this.setHasPrevious(false); refresh(); } // 取得上一页（重新设定当前页面即可） public void previous() { if (currentPage > 1) { currentPage--; } refresh(); } // 取得下一页 public void next() { //System.out.println("next: totalPages: " + totalPages + " currentPage : " + currentPage); if (currentPage < totalPages) { currentPage++; } refresh(); } // 跳到最后一页 public void last() { currentPage = totalPages; this.setHasNext(false); refresh(); } public boolean isHasNext() { return hasNext; } /** * * @param hasNext * The hasNext to set. * */ public void setHasNext(boolean hasNext) { this.hasNext = hasNext; } public boolean isHasPrevious() { return hasPrevious; } /** * * @param hasPrevious * The hasPrevious to set. * */ public void setHasPrevious(boolean hasPrevious) { this.hasPrevious = hasPrevious; } // 刷新当前页面信息 public void refresh() { if (totalPages <= 1) { hasPrevious = false; hasNext = false; } else if (currentPage == 1) { hasPrevious = false; hasNext = true; } else if (currentPage == totalPages) { hasPrevious = true; hasNext = false; } else { hasPrevious = true; hasNext = true; } } }