Page类

港控/mmm° 2022-01-28 05:25 218阅读 0赞

/**
     * <p>
     * Title:Page.java
     * </p>
     * <p>
     * @version 1.0
     */
    package cn.surveystore.common.util;
    
    import java.io.Serializable;
    
    
    public class Page implements Serializable {
    
    	/**
    	 * 
    	 */
    	private static final long serialVersionUID = -8756311063389960015L;
    	/**
    	 * 当前页数
    	 */
    	private int pageNow;
    	/**
    	 * 每页显示记录的条数
    	 */
    	private int pageSize;
    	/**
    	 * 总记录数
    	 */
    	private int totalCount;
    	/**
    	 * 总页数
    	 */
    	private int totalPageCount;
    	/**
    	 * 跳转url
    	 */
    	private String url;
    
    	/**
    	 * 通过构造函数 传入 总记录数 和 当前页
    	 * 
    	 * @param totalCount
    	 * @param pageNow
    	 */
    	public Page(int totalCount, int pageNow, int pageSize, String url) {
    		this.totalCount = totalCount;
    		this.pageNow = pageNow;
    		this.pageSize = pageSize;
    		this.url = url;
    	}
    
    	/**
    	 * 取得选择记录的初始位置
    	 * 
    	 * @return
    	 */
    	public int getStartPos() {
    		return (pageNow - 1) * pageSize;
    	}
    
    	/**
    	 * @return the pageNow
    	 */
    	public int getPageNow() {
    		return pageNow;
    	}
    
    	/**
    	 * @param pageNow
    	 *            the pageNow to set
    	 */
    	public void setPageNow(int pageNow) {
    		this.pageNow = pageNow;
    	}
    
    	/**
    	 * @return the pageSize
    	 */
    	public int getPageSize() {
    		return pageSize;
    	}
    
    	/**
    	 * @param pageSize
    	 *            the pageSize to set
    	 */
    	public void setPageSize(int pageSize) {
    		this.pageSize = pageSize;
    	}
    
    	/**
    	 * @return the totalCount
    	 */
    	public int getTotalCount() {
    		return totalCount;
    	}
    
    	/**
    	 * @param totalCount
    	 *            the totalCount to set
    	 */
    	public void setTotalCount(int totalCount) {
    		this.totalCount = totalCount;
    	}
    
    	/**
    	 * 总页数，总页数=总记录数/总页数
    	 * 
    	 * @return the totalPageCount
    	 */
    	public int getTotalPageCount() {
    		totalPageCount = getTotalCount() / getPageSize();
    		return (totalCount % pageSize == 0) ? totalPageCount
    				: totalPageCount + 1;
    	}
    
    	/**
    	 * @param totalPageCount
    	 *            the totalPageCount to set
    	 */
    	public void setTotalPageCount(int totalPageCount) {
    		this.totalPageCount = totalPageCount;
    	}
    
    	/**
    	 * @return the url
    	 */
    	public String getUrl() {
    		return url;
    	}
    
    	/**
    	 * @param url
    	 *            the url to set
    	 */
    	public void setUrl(String url) {
    		this.url = url;
    	}
    
    	/**
    	 * 是否是第一页
    	 * 
    	 * @return
    	 */
    	public boolean isHasFirst() {
    		return (pageNow == 1) ? false : true;
    	}
    
    	/**
    	 * 是否有首页
    	 * 
    	 * @return
    	 */
    	public boolean isHasPre() {
    		return isHasFirst() ? true : false;
    	}
    
    	/**
    	 * 是否有下一页
    	 * 
    	 * @return
    	 */
    	public boolean isHasNext() {
    		return isHasLast() ? true : false;
    	}
    
    	/**
    	 * 是否有尾页
    	 * 
    	 * @return
    	 */
    	public boolean isHasLast() {
    		return (pageNow == getTotalCount()) ? false : true;
    	}
    }