page.java

struts spring hibernate 自已写的

package com.hb.gf.addpage;

import java.util.ArrayList;
import java.util.List;

/**
 * PageBean
 * 
 * @author cbb
 * 
 */
public class Page {
	private int currentPage = 1;// ��ǰҳ��

	private int totalPages = 0;// ��ҳ��

	private int pageRecorders = 5;// ÿҳ��ʾ��

	private int totalRows = 0;// �������

	private int pageStartRow = 0;// ÿҳ����ʼ��

	private int pageEndRow;// ÿҳ����ֹ��

	private boolean hasNextPage = false;// �Ƿ�����һҳ

	private boolean hasPreviousPage = false;// �Ƿ���ǰһҳ

	private List list;

	private String pagePath;// ��·��

	private String className;// ����

	/**
	 * ��ʼ������
	 * 
	 * @param list
	 *            ���
	 * @param pagePath
	 *            ���·��
	 * @param className
	 *            ҵ������
	 */
	public Page(List list) {

		this.list = list;
		totalRows = list.size();
		hasPreviousPage = false;
		currentPage = 1;

		// ��ȡ��ҳ��
		if ((totalRows % pageRecorders) == 0) {
			totalPages = totalRows / pageRecorders;
		} else {
			totalPages = totalRows / pageRecorders + 1;
		}

		// �Ƿ�����һҳ
		if (currentPage >= totalPages) {
			hasNextPage = false;
		} else {
			hasNextPage = true;
		}

		if (totalRows < pageRecorders) {
			this.pageStartRow = 0;
			this.pageEndRow = totalRows;
		} else {
			this.pageStartRow = 0;// TODO ������ܻ�������
			this.pageEndRow = pageRecorders;
		}
	}

	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}

	public void setPageRecorders(int pageRecorders) {
		this.pageRecorders = pageRecorders;
	}

	public void setHasNextPage(boolean hasNextPage) {
		this.hasNextPage = hasNextPage;
	}

	public void setHasPreviosPage(boolean hasPreviousPage) {
		this.hasPreviousPage = hasPreviousPage;
	}

	public String getCurrentPage() {
		return this.toString(currentPage);
	}

	public String getTotalPages() {
		return this.toString(totalPages);
	}

	public String getTotalRow() {
		return this.toString(totalRows);
	}

	public int getPageRecorders() {
		return pageRecorders;
	}

	public int getPageEndRow() {
		return pageEndRow;
	}

	public int getPageStartRow() {
		return pageStartRow;
	}

	public boolean isHasNextPage() {
		return hasNextPage;
	}

	public boolean isHasPreviousPage() {
		return hasPreviousPage;
	}

	public String getClassName() {
		return className;
	}

	public void setClassName(String className) {
		this.className = className;
	}

	public String getPagePath() {
		return pagePath;
	}

	public void setPagePath(String pagePath) {
		this.pagePath = pagePath;
	}

	/**
	 * ��ȡ��һҳ�Ķ��