show下我的分页类

package com.xm.utils;

import java.util.Enumeration;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.kangsheng.cus.common.dbconn.DaoFactory;

// Referenced classes of package com.sihitech.tools:
//            DaoFactory

public class PageRoll {
	private String currentUrl;

	// private PageContext page;

	private DaoFactory pv;

	private HttpServletRequest request;

	private HttpServletResponse response;

	private String strParams;

	private String strlink;

	public PageRoll(HttpServletRequest request, HttpServletResponse response,
			DaoFactory pv) {
		currentUrl = "";
		strParams = "";
		this.request = request;
		this.response = response;
		this.pv = pv;
		currentUrl = request.getRequestURL().toString();

		strParams = GetParamsFromCurrentUrl();
	}

	private String GetParamsFromCurrentUrl() {
		String str1 = "";
		String paraValue = "";
		for (Enumeration enu = request.getParameterNames(); enu
				.hasMoreElements();) {
			String paraName = (String) enu.nextElement();
			paraValue = request.getParameter(paraName);
			if (!paraName.equals("page"))
				str1 = str1 + "&" + paraName + "=" + paraValue;
		}

		return str1;
	}

	public void Show(boolean allRecord, boolean pageInfo, boolean pageNav,
			boolean jumpPage) {
		// PrintWriter out = response.getWriter();
		// out.print("<table border=0> <tr><td>");
		String link = "";
		if (allRecord)
			link = link + ShowTotalRecord();
		if (pageInfo)
			link = link + ShowPageInfo();
		if (pageNav)
			link = link + ShowPageNav();
		if (jumpPage)
			link = link + ShowJumpPage();
		this.strlink = link;
		// out.print("</td></tr></table>");
	}

	private String ShowJumpPage() {
		// PrintWriter out = response.getWriter();
		String link = "";
		link = link
				+ "转到第<input type='text' name='page' size='1'><span>页</span><input type=button value='GO' onclick='goToPage()'>";
		link = link + "<script language='javascript'>";
		link = link + "function goToPage(){";
		link = link + "value=document.all.page.value;";
		link = link
				+ "if(value.indexOf(\".\")==-1 && value.indexOf(\"-\")==-1 && value!==\"\" && !isNaN(value) && value>0 && value<"
				+ (pv.GetTotalPage() + 1) + "){";
		link = link + "location.assign('" + currentUrl + "?page='+value+'"
				+ strParams + "')";
		link = link + "}";
		link = link + "}";
		link = link + "</script>";
		return link;
	}

	private String ShowPageInfo() {
		// PrintWriter out = response.getWriter();
		String link = "第" + pv.GetCurrentPage() + "/" + pv.GetTotalPage()
				+ "页&nbsp";
		return link;
	}

	private String ShowPageNav() {
		// PrintWriter out = response.getWriter();
		String link = "";
		if (pv.GetTotalPage() > 1)
			link = "<a href='" + currentUrl + "?page=1" + strParams
					+ "'><span>首页</span></a>&nbsp;";
		else
			link = "<span>首页&nbsp;</span>";
		//
		if (pv.GetHasPrev())
			link = link + "<a href='" + currentUrl + "?page="
					+ pv.GetPrevPageNumber() + strParams + "'><span>上页</span></a>&nbsp;";
		else
			link = link + "<span>上页&nbsp;</span>";
		//
		if (pv.GetHasNext())
			link = link + "<a href='" + currentUrl + "?page="
					+ pv.GetNextPageNumber() + strParams + "'><span>下页</span></a>&nbsp;";
		else
			link = link + "<span>下页&nbsp;</span>";
		//
		if (pv.GetTotalPage() > 1) {
			link = link + "<a href='" + currentUrl + "?page="
					+ pv.GetTotalPage() + strParams + "'><span>尾页</span></a>&nbsp;";
			return link;
		} else {
			link = link + "<span>尾页&nbsp;</span>";
			return link;
		}
	}

	private String ShowTotalRecord() {
		// PrintWriter out = response.getWriter();
		String link = "<span>共" + pv.GetTotalRecord() + "条记录&nbsp;</span>";
		return link;
	}

	public String getStrlink() {
		return strlink;
	}

	public void setStrlink(String strlink) {
		this.strlink = strlink;
	}

}

使用时,在action中建立该类的对象pr,并执行public void Show(boolean allRecord, boolean pageInfo, boolean pageNav,boolean jumpPage),将该对象放入ModelAndView,在页面使用${pr.strlink }就可以实现分页,如图


本人从事JAVA才1年,希望达到抛砖引玉的效果,大家把自己的工具拿出来show show,共同研究下,学习下
也建议版主弄一个工具包专题

评论

8 楼 jiyanliang 2008-11-18  

很老的一个例子了！

7 楼 xuming9 2008-11-18  

不加样式是比较难看
不过比较实用,至少我开发的时候可以一劳永逸.
楼上的靓仔,烂在哪里,说说,俺改改

6 楼 上一站，火星 2008-11-18  

有啥好show的？写的这么烂

5 楼 EXvision 2008-11-18  

怎么能把显示的数据放在类里面。太离谱了。
居然在方法里面拼html。。。丑陋。。丑陋到了极点。。

4 楼 yyjn12 2008-11-18  

在90%的项目里，国际化是假想需求.

3 楼 xuming9 2008-11-18  

icefire 写道

输出都写死了，无法定制输出内容，无法定义样式，无法国际化，GetParamsFromCurrentUrl()……总之，很差。

<div id="product_page">
     ${pr.strlink }
</div>
样式可以定义,
国际化也可以使用哦,只是目前我这个项目没涉及到国际化,没改
这只是我个人使用的,有很多缺点,大家讨论下嘛,
多谢楼上的意见,希望大家多多提出意见,多多完善

2 楼 icefire 2008-11-18  

输出都写死了，无法定制输出内容，无法定义样式，无法国际化，GetParamsFromCurrentUrl()……总之，很差。

1 楼 ray_linn 2008-11-18  

这是webwork?? 放错地了。