mypagination.java~5~

一、数据库登录名：blog 密码：blog 二、首页应该运行log.jsp页面。其用户名：aa 密码：aaaa

package Tool;
import java.util.ArrayList;
import java.util.List;
public class MyPagination {
    public List list=null;
    private int recordCount=0;//总记录数
    private int pagesize=0;//每页显示的记录数
    private int maxPage=0;//最大页数
    public MyPagination() {
    }
    //初始化分页的信息
    public List getInitPage(List list ,int Page,int pagesize){
    List<Object> newlist=new ArrayList<Object>();
    this.list=list;
    recordCount=list.size();
    this.pagesize=pagesize;
    this.maxPage=getMaxPage();
    try{
     for(int i=(Page-1)*pagesize;i<Page*pagesize-1;i++){
     try{if(i>=recordCount){break;}}catch(Exception e){}
     newlist.add((Object)list.get(i));}
    }catch(Exception e){e.printStackTrace();}
    return newlist;
    }
    //获取指定页的数据
    public List<Object> getAppointPage(int Page){
     List<Object>  newlist=new ArrayList<Object> ();
     try{
      for(int i=(Page-1)*pagesize;i<=Page*pagesize-1;i++){
      try{
      if(i>=recordCount){break;}
      }catch(Exception e){}
      newlist.add((Object)list.get(i));
      }
     }catch(Exception e){e.printStackTrace();}
  return newlist;
 }//获取最大记录数
 public int getMaxPage(){
  int maxPage=(recordCount%pagesize==0)?(recordCount/pagesize):(recordCount/pagesize+1);
 return maxPage;
 }
 //获取总记录数
 public int getRecordSize(){
  return recordCount;
 }
 //获取当前页数
 public int getPage(String str){
  System.out.println("STR:"+str+"&&&&"+recordCount);
  if(str==null){
   str="0";
  }
  int Page=Integer.parseInt(str);
  if(Page<1){
      Page=1;
  }
  else{
   if(((Page-1)*pagesize+1)>recordCount){
   Page=maxPage;
   }
  }
  return Page;
 }

 public String printCtrl(int Page){
  String strHtml="<table width='370' border='0' cellspacing='0' cellpadding='0'<tr><td height=24 align='right'>当前页数：["+Page+"/"+maxPage+"]&nbsp;&nbsp;";
  try{
   if(Page<1){
    strHtml=strHtml+"<a href='?Page=1'>第一页</a>";
    strHtml=strHtml+"&nbsp;&nbsp;<a href='?Page="+(Page-1)+"'>上一页</a>";
     }
  if(Page<maxPage){
  strHtml=strHtml+"&nbsp;&nbsp;<a href='?Page="+(Page+1)+"'>下一页</a>&nbsp;&nbsp;<a href='?Page="+maxPage+"'>最后一页&nbsp;</a>";
  }
  strHtml=strHtml+"</td></tr></table>";
  }catch(Exception e){e.printStackTrace();}
 return strHtml;
}

public String printCtrl(int Page,String id){
id="&id="+id;
    String strHtml="<table width='370' border='0' cellspacing='0' cellpadding='0'<tr><td height=24 align='right'>当前页数：["+Page+"/"+maxPage+"]&nbsp;&nbsp;";
    try{
        if (Page > 1) {
            strHtml = strHtml + "<a href='?Page=1" + id + "'>第一页</a>";
            strHtml = strHtml + "&nbsp;&nbsp;<a href='?Page=" + (Page - 1) + id +
                      "'>上一页</a>";

        }
        if (Page < maxPage) {
            strHtml = strHtml + "&nbsp;&nbsp;<a href='?Page=" + (Page + 1) + id +
                      "'>下一页</a>&nbsp;&nbsp;<a href='?Page=" + maxPage + id +
                      "'>最后一页&nbsp;</a>";
        }
    strHtml=strHtml+"</td> </tr></table>";
    }catch(Exception e){e.printStackTrace();}
return strHtml;
}
}