updownpage.java

hr伯乐管理系统！非常适合java学员做学习参考用！是用集成框架开发的Struts+hrbernet+Spring 开发的

package org.better.hr.comm.page;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
/**
 * 分页显示的辅助程序
 * 用作跳页
 */
public class updownPage extends TagSupport {
   /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
private String file="";
   int num=0;
   public String getFile() {
     return file;
   }

   public void setFile(String file) {
     this.file=file;
   }

   public int getNum() {
     return num;
   }

   public void setNum(int num) {
     this.num=num;
   }

   public int doStartTag() throws JspException {
  int intPage=1;
  int PageCount=1;
  if(pageContext.getAttribute("intPage")!=null) {
  intPage=Integer.parseInt((String)pageContext.getAttribute("intPage"));
  pageContext.removeAttribute("intPage");
  }
  if(pageContext.getAttribute("PageCount")!=null) {
  PageCount=Integer.parseInt((String)pageContext.getAttribute("PageCount"));
  pageContext.removeAttribute("PageCount");
  }
   try {
		    pageContext.getOut().print("<p>&nbsp;&nbsp;总数："+num+"例 &nbsp;&nbsp;&nbsp;");
   if (intPage> 1) {
         pageContext.getOut().print("<A href=\""+file+"?page="+
                                    new Integer(intPage-1).toString()+
                                    "\"><font color=\"#000000\">上一页</font></A> &nbsp;&nbsp;&nbsp;");
    }
         pageContext.getOut().print("当前第 "+intPage+" 页  &nbsp;&nbsp;&nbsp;");
   if (intPage < PageCount) {
         pageContext.getOut().print("<A href=\""+file+"?page="+new Integer(intPage+1).toString()+
                                    "\"><font color=\"#000000\">下一页</font></A> &nbsp;&nbsp;&nbsp;");
    }
         pageContext.getOut().print("共 "+PageCount+" 页  &nbsp;&nbsp;&nbsp;"+
                                    "跳到第 <input name=page type=text class=input1 size=1> 页&nbsp;&nbsp;"+
                                    "<input type=image src=\"images/go.bmp\" width=18 height=18 border=0>");
   } catch(Exception ioException) {
	   System.err.println("Exception thrown ");
	   throw new JspException(ioException);
   }
   return SKIP_BODY;
  }
}