mypages.java

struts+Spring+Hibernate经典入门源码

package com.softeem.util;

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


public class MyPages {

	@SuppressWarnings("unchecked")
	private List pages; // 总记录集合

	private int recordNum; // 总记录数

	private int pageCount; // 页面总数

	private int pageSize; // 每页记录数

	private int pageNum; // 页码

	private String pageName; // 页面名称

	private String pageNumLink; // 每页链接字符串

	private String prevPageLink; // 上一页链接

	private String nextPageLink; // 下一页链接

	private String allPageLink; // 所有的链接

	@SuppressWarnings("unchecked")
	public MyPages(List infos, String pageName, int pageSize,int recordNum, int pageNum) {
		this.initial(infos, pageName, pageSize,recordNum, pageNum);
	}

	@SuppressWarnings("unchecked")
	private void initial(List infos, String pageName,int pageSize, int recordNum, int pageNum) {
		List list = null;
		if (infos == null) {
			list = new ArrayList();
		} else {
			list = infos;
		}
		this.pageName = pageName;
		this.pageSize = pageSize;
		this.recordNum = recordNum;
		this.pageNum = pageNum;
		this.setPageCount();
		this.setPages(list);
		this.setPageNumLink();
		this.setPrevPageLink();
		this.setNextPageLink();
		this.setAllPageLink();
	}

	public int getPageCount() {
		return this.pageCount;
	}

	public int getPageSize() {
		return this.pageSize;
	}

	public int getPageNum() {
		return this.pageNum;
	}

	public int getRecordNum() {
		return this.recordNum;
	}

	@SuppressWarnings("unchecked")
	public List getPages() {
		return this.pages;
	}

	public String getPageNumLink() {
		return this.pageNumLink;
	}

	public String getPrevPageLink() {
		return this.prevPageLink;
	}

	public String getNextPageLink() {
		return this.nextPageLink;
	}

	public String getAllPageLink() {
		return this.allPageLink;
	}

	private void setPageNumLink() {
		String strLinks = "";
		if (this.pageCount > 1) {
			if(this.pageCount<=10)
			{
				for (int i = 1; i <= this.pageCount; ++i) {
					if (i == this.pageNum) {
						strLinks += "<b>" + i + "</b>&nbsp;";
					} else {
						strLinks += "[<a href=\"" + this.pageName + "?pageNum=" + i
						+ "\">" + i + "</a>]&nbsp;";
					}
				}
			}else
			{
				StringBuffer sb = new StringBuffer("<select onchange=window.location='"+this.pageName+"?pageNum='"+"+(this.selectedIndex+1)"+">");
				for (int i = 1; i <= this.pageCount; ++i) {
					if(i==pageNum)
					{
						sb.append("<option value="+i+" selected>"+i+"</option>");
					}else
					{
						sb.append("<option value="+i+">"+i+"</option>");
					}
				}
				sb.append("</select>");
				strLinks = sb.toString();
			}
		}
		this.pageNumLink = strLinks;
	}

	private void setPrevPageLink() {
		String strLinks = "";
		int prevPageNum = this.pageNum - 1;
		if (prevPageNum >= 1)
			strLinks = "<a href=\"" + this.pageName + "?pageNum=" + prevPageNum
					+ "\">上一页</a>";
		else
			strLinks = "　　　";
		this.prevPageLink = strLinks;
	}

	private void setNextPageLink() {
		String strLinks = "";
		int nextPageNum = this.pageNum + 1;
		if (nextPageNum <= this.pageCount)
			strLinks = "<a href=\"" + this.pageName + "?pageNum=" + nextPageNum
					+ "\">下一页</a>";
		else
			strLinks = "　　　";
		this.nextPageLink = strLinks;
	}

	private void setAllPageLink() {
		this.allPageLink = this.prevPageLink + "&nbsp;&nbsp;"
				+ this.pageNumLink + "&nbsp;&nbsp;" + this.nextPageLink
				+ "&nbsp;&nbsp;&nbsp;&nbsp;" + +this.pageNum + "/"
				+ this.pageCount + "页 &nbsp;&nbsp;&nbsp;&nbsp;" + "共"
				+ this.recordNum + "条";
	}

	@SuppressWarnings("unchecked")
	private void setPages(List infos) {
		this.pages = infos;
	}

	public void setPageCount() {
		System.out.println("recordNum:>>>>>>"+recordNum);
		this.pageCount =  (recordNum+pageSize-1)/pageSize;
		System.out.println("pageCount:>>>>"+pageCount);
	}

	
}