超市收银管理系统运用Java web开发

package cn.java.common;

public class PageBean {
	// 总的记录数
	private Long recordCnt;
	// 每页最大记录数
	private Integer maxSize;
	// 总页数
	private Long pageCnt;
	// 当前页
	private Long curPage;
	// 上一页
	private Long prePage;
	// 下一页
	private Long nextPage;

	public void update（Long curPage）{
		// 处理特殊情况
		this.prePage = curPage - 1;
		this.nextPage = curPage + 1;

		// 如果当前页小于等于1
		if （curPage <= 1L） {
			curPage = 1L;
			this.prePage = 1L;
		}

		// 如果当前页大于等于总页数
		if （curPage >= this.pageCnt） {
			curPage = this.pageCnt;
			this.nextPage = this.pageCnt;
		}

		// 没有特殊情况
		this.curPage = curPage;
	}

	public void init（Long curpage Long recordCnt Integer maxSize） {
		this.recordCnt = recordCnt;
		this.maxSize = maxSize;
		this.pageCnt = recordCnt / maxSize
				+ （recordCnt % maxSize == 0L ? 0L : 1L）;

		update（curpage）;
	}

	public Long getRecordCnt（） {
		return recordCnt;
	}

	public void setRecordCnt（Long recordCnt） {
		this.recordCnt = recordCnt;
	}

	public Integer getMaxSize（） {
		return maxSize;
	}

	public void setMaxSize（Integer maxSize） {
		this.maxSize = maxSize;
	}

	public Long getPageCnt（） {
		return pageCnt;
	}

	public void setPageCnt（Long pageCnt） {
		this.pageCnt = pageCnt;
	}

	public Long getCurPage（） {
		return curPage;
	}

	public void setCurPage（Long curPage） {
		this.curPage = curPage;
	}

	public Long getPrePage（） {
		return prePage;
	}

	public void setPrePage（Long prePage） {
		this.prePage = prePage;
	}

	public Long getNextPage（） {
		return nextPage;
	}

	public void setNextPage（Long nextPage） {
		this.nextPage = nextPage;
	}
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        869  2008-04-15 11:17  supermarket3.classpath

     文件        306  2008-04-15 11:17  supermarket3.mymetadata

     文件       1229  2008-04-15 11:17  supermarket3.project

     文件       1723  2008-04-15 11:17  supermarket3srccnjavacommonPageBean.java

     文件        570  2008-04-15 11:17  supermarket3srccnjavacommonPageCtrl.java

     文件       1108  2008-04-15 11:17  supermarket3srccnjavacontrolServletBackup.java

     文件       1561  2008-04-15 11:17  supermarket3srccnjavacontrolServletBill.java

     文件       1883  2008-04-15 11:17  supermarket3srccnjavacontrolServletDept.java

     文件       1685  2008-04-15 11:17  supermarket3srccnjavacontrolServletIncome.java

     文件       1085  2008-04-15 11:17  supermarket3srccnjavacontrolServletLogin.java

     文件       1223  2008-04-15 11:17  supermarket3srccnjavacontrolServletReport.java

     文件       1970  2008-04-15 11:17  supermarket3srccnjavacontrolServletVendor.java

     文件        103  2008-04-15 11:17  supermarket3srccnjavadaodaobackupDaoBackUp.java

     文件        104  2008-04-15 11:17  supermarket3srccnjavadaodaobackupDaoBackUpFactory.java

     文件        172  2008-04-15 11:17  supermarket3srccnjavadaodaobackupDaoBackUpFactoryImpl.java

     文件       5018  2008-04-15 11:17  supermarket3srccnjavadaodaobackupDaoBackUpImpl.java

     文件        486  2008-04-15 11:17  supermarket3srccnjavadaodaobillDaoBill.java

     文件         98  2008-04-15 11:17  supermarket3srccnjavadaodaobillDaoBillFactory.java

     文件        162  2008-04-15 11:17  supermarket3srccnjavadaodaobillDaoBillFactoryImpl.java

     文件       4114  2008-04-15 11:17  supermarket3srccnjavadaodaobillDaoBillImpl.java

     文件        638  2008-04-15 11:17  supermarket3srccnjavadaodaodeptDaoDept.java

     文件         98  2008-04-15 11:17  supermarket3srccnjavadaodaodeptDaoDeptFactory.java

     文件        162  2008-04-15 11:17  supermarket3srccnjavadaodaodeptDaoDeptFactoryImpl.java

     文件       6690  2008-04-15 11:17  supermarket3srccnjavadaodaodeptDaoDeptImpl.java

     文件        753  2008-04-15 11:17  supermarket3srccnjavadaodaoIncomeDaoIncome.java

     文件        106  2008-04-15 11:17  supermarket3srccnjavadaodaoIncomeDaoIncomeFactory.java

     文件        179  2008-04-15 11:17  supermarket3srccnjavadaodaoIncomeDaoIncomeFactoryImpl.java

     文件       9025  2008-04-15 11:17  supermarket3srccnjavadaodaoIncomeDaoIncomeImpl.java

     文件        175  2008-04-15 11:17  supermarket3srccnjavadaodaologinDaoLogin.java

     文件        101  2008-04-15 11:17  supermarket3srccnjavadaodaologinDaoLoginFactory.java

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