ssh自定义分页标签

java类

package com.chinasofti.articlesys.util;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

/**
 * 自定义的分页标签
 * @author Liu
 * @version1.0
 * @category 分页标签 创建时间：2012-8-17 17:00
 */
public class MyPage extends TagSupport {

    private String url = null;
    private int pageIndex;
    private int pageMax;

    public void setUrl(String url) {
        this.url = url;
    }

    public String getUrl() {
        return this.url;
    }

    public void setPageIndex(int pageIndex) {
        this.pageIndex = pageIndex;
    }

    public int getPageIndex() {
        return this.pageIndex;
    }

    public void setPageMax(int pageMax) {
        this.pageMax = pageMax;
    }

    public int getPageMax() {
        return this.pageMax;
    }


    @Override
    public int doStartTag() throws JspException {
        StringBuffer str = new StringBuffer();
        if (pageIndex == 1) {
            str.append("首页 上一页 ");
        } else {
            str.append(" <a href='" + url + "data.page=1'>首页</a> "
                    + "<a href='" + url + "data.page=" + (pageIndex - 1) + "'>上一页</a> ");
        }
        if (pageIndex / 6 < 1.0 || pageMax < 10) {
            for (int i = 1; i <= 9; i++) {
                if (i <= pageMax) {
                    if (pageIndex != i) {
                        str.append("<a href='" + url + "data.page=" + i + "'>[" + i + "]</a> ");
                    } else {
                        str.append("  " + i + " ");
                    }
                }
            }
        } else if (pageIndex / 6 >= 1.0 && pageMax >= 10) {
            int fri = 0;
            int max = 0;
            if (pageMax - pageIndex > 4) {
                fri = pageIndex - 4;
                max = pageIndex + 4;
            } else {
                fri = pageMax - 8;
                max = pageMax;
            }
            for (int i = fri; i <= max; i++) {
                if (i <= pageMax) {
                    if (pageIndex != i) {
                        str.append("<a href='" + url + "data.page=" + i + "'>[" + i + "]</a> ");
                    } else {
                        str.append("  " + i + " ");
                    }
                }
            }
        }
        if (pageIndex == pageMax || pageMax < 2) {
            str.append("下一页 尾页");
        } else {
            str.append("<a href='" + url + "data.page=" + (pageIndex + 1) + "'>下一页</a> "
                    + "<a href='" + url + "data.page=" + pageMax + "'>尾页</a>");
        }
        str.append(" 跳转至：<select onchange=\"location='"+url+"data.page='+this.value;\">");
        for(int i=1;i<=pageMax;i++){
        	str.append("<option value='"+i+"' "+(i==pageIndex?"selected":"")+">第"+i+"页</option>");
        }
        str.append("</select>");
        try {
            if (str.length()>0) {
                pageContext.getOut().write(new String(str));
            }
        } catch (Exception e) {
            throw new JspException(e);
        }
        return EVAL_PAGE;
    }
}

WEB-INF下.tld文件

<?xml  version="1.0"  encoding="utf-8"  ?>
 <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
    <tlib-version>1.0</tlib-version>
    <jsp-version>1.2</jsp-version>
    <short-name>MyPage</short-name>
    <!--OutputTag-->
    <tag>
        <name>page</name>
        <tag-class>com.chinasofti.articlesys.util.MyPage</tag-class>
        <body-content>empty</body-content>
        <attribute>
            <name>url</name>
            <required>true</required>
            <rtexprvalue>true</rtexprvalue>
        </attribute>
        <attribute>
            <name>pageIndex</name>
            <required>true</required>
            <rtexprvalue>true</rtexprvalue>
        </attribute>
        <attribute>
            <name>pageMax</name>
            <required>true</required>
            <rtexprvalue>true</rtexprvalue>
        </attribute>
    </tag>
</taglib>

java类

/**
 * 
 */
package com.chinasofti.articlesys.util;

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


/**
 * @author Liu
 *@createTime 2017-3-16 上午10:19:53
 *@category 数据分页实体对象
 */
public class DataPage<T> {
	private List<T> list=new ArrayList<T>();//存放集合数据
	private int page=1;//当前第几页
	private int size=10;//每页显示数据个数
	private int totalPage=1;//总页数
	private int count=0;//总的记录个数
	public DataPage(int page,int size){
		this.page=page;
		this.size=size;
	}
	public DataPage(List<T> list,int page,int size,int count){
		this.list=list;
		this.page=page;
		this.size=size;
		this.count=count;
		this.totalPage=count%size==0?count/size:count/size+1;
	}
	public DataPage(List<T> list,String page,int size,int count){
		this.list=list;
		if(page!=null){
			this.page=Integer.valueOf(page);
		}
		this.size=size;
		this.count=count;
		this.totalPage=count%size==0?count/size:count/size+1;
	}
	
	public List<T> getList() {
		return list;
	}
	public void setList(List<T> list) {
		this.list = list;
	}
	public int getPage() {
		return page;
	}
	public void setPage(int page) {
		this.page = page;
	}
	public int getSize() {
		return size;
	}
	public void setSize(int size) {
		this.size = size;
	}
	public int getTotalPage() {
		return totalPage;
	}
	public void setTotalPage(int totalPage) {
		this.totalPage = totalPage;
	}
	public int getCount() {
		return count;
	}
	public void setCount(int count) {
		this.count = count;
		this.totalPage=count%size==0?count/size:count/size+1;
	}
	
}

action中

protected DataPage<T> data=new DataPage<T>(1,10);
	
	public DataPage<T> getData() {
		return data;
	}

	public void setData(DataPage<T> data) {
		this.data = data;
	}
public String list() {
		
		data.setList(service.queryByPage(data.getPage(), data.getSize()));
		data.setCount(service.count());
		return "list";
	}

jsp页面中

<pt:page pageIndex="${data.page }" url="save!list?"  pageMax="${data.totalPage }" />