Jsp分頁

 

<%
		int dipage=1;          //當前頁碼數默認爲1
		String pages=request.getParameter("dipage");
		
		if(pages==null)
		{
		  pages="1";
		}
		
		try
		{
		  dipage=Integer.parseInt(pages);
		}
		catch(Exception e)
		{
		  dipage=1; 
		}
		
    try 
    {  //Connection conn;
       Statement stm; 
       ResultSet rs;
       conn=DBToolsX.getConnection();
       stm=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
        
       String sql="select * from equipment order by id desc";
       rs=stm.executeQuery(sql);
       int countRecord=0;                         //記錄條數
       int countPageRecord=0;                     //每頁記錄條數
       int countPage=0;                           //總頁數
       countPageRecord=20;                        //每頁20條記錄，要設置每頁記錄條數就更改這個變量的值
       rs.last();                                 //得到記錄的條數  
       countRecord=rs.getRow();
       countPage=countRecord/countPageRecord+1;   //得到總頁數      
       if((dipage-1)*countPageRecord==0)          //把記錄指針移至當前頁第一條記錄之前
          rs.beforeFirst();
       else
          rs.absolute((dipage-1)*countPageRecord);
          int i=0;
       while(rs.next())
       { 
       String id=rs.getString("id");
	     String equipment_class2=rs.getString("equipment_class");
       String equipment_name2=rs.getString("equipment_name");
	     String guige2=rs.getString("guige");   
%>

 

<%
    i++;
    if(i>=countPageRecord) break; //當前頁顯示完，則退出循環
    }
    out.print("<TR><td colspan=8 align=center>");
    out.print("共"+countRecord+"條記錄,共"+countPage+"頁，當前第"+dipage+"頁，每頁"+countPageRecord+"條記錄，");
		if(dipage==1)//當前是首頁
		;
		else         //當前不是首頁
		 {
		   out.print("<a href=equipment.jsp?dipage=1>首頁</a> ");
		   out.print("<a href=equipment.jsp?dipage="+(dipage-1)+"><上一頁</a> ");
		 }
		if(dipage==countPage)//當前是末頁
		;
		else//當前不是末頁
		 {
		   out.print("<a href=equipment.jsp?dipage="+(dipage+1)+">下一頁></a> ");
		   out.print("<a href=equipment.jsp?dipage="+countPage+">末頁</a>");
		 }          
		 out.print("</td></tr>"); 
		 conn.close();
     }
   catch(SQLException e1) 
   {
      out.print(e1);
   }
%>