已驗證可以執行的代碼。
初學,謹作為個人學習記錄。
請大家給出意見或建議。謝謝!
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%
//驅動程式名,比較舊了,如果你用mysql5,自己改。
String driverName="com.mysql.jdbc.Driver";
String userName="root";//資料庫使用者名稱
String userPasswd="12345";//密碼
String dbName="ziyuan";//資料庫名
String tableName="zyd_user"; //表名
//連接字串
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName(driverName).newInstance();
Connection connection=DriverManager.getConnection(url);
Statement statement = connection.createStatement();
//每頁顯示記錄數
int PageSize = 4; //每頁顯示記錄數
int StartRow = 0; //開始顯示記錄的編號
int PageNo=0;//需要顯示的頁數
int CounterStart=0;//每頁頁碼的初始值
int CounterEnd=0;//顯示頁碼的最大值
int RecordCount=0;//總記錄數;
int MaxPage=0;//總頁數
int PrevStart=0;//前一頁
int NextPage=0;//下一頁
int LastRec=0;
int LastStartRecord=0;//最後一頁開始顯示記錄的編號
//擷取需要顯示的頁數,由使用者提交
if(request.getParameter("PageNo")==null){ //如果為空白,則表示第1頁
if(StartRow == 0){
PageNo = StartRow + 1; //設定為1
}
}else{
PageNo = Integer.parseInt(request.getParameter("PageNo")); //獲得使用者提交的頁數
StartRow = (PageNo - 1) * PageSize; //獲得開始顯示的記錄編號
}
//因為顯示頁碼的數量是動態變化的,假如總共有一百頁,則不可能同時顯示100個連結。而是根據當前的頁數顯示
//一定數量的頁面連結
//設定顯示頁碼的初始值!!
if(PageNo % PageSize == 0){
CounterStart = PageNo - (PageSize - 1);
}else{
CounterStart = PageNo - (PageNo % PageSize) + 1;
}
CounterEnd = CounterStart + (PageSize - 1);
%>
<html>
<head>
<title>分頁顯示記錄</title>
<link rel="stylesheet" href="style.css" type="text/css">
<style type="text/css">
<!--
.STYLE13 {font-family: "幼圓"}
.STYLE18 {font-size: 14px}
-->
</style>
</head>
<%
//擷取總記錄數
ResultSet rs = statement.executeQuery("select count(*) from zyd_user" );
rs.next();
RecordCount = rs.getInt(1);
//rs = statement.executeQuery("SELECT usercode,username,password,comcode,flag_level,flag_status FROM zyd_user ORDER BY usercode DESC LIMIT "+StartRow+", "+PageSize);
rs = statement.executeQuery("SELECT usercode,username,password FROM zyd_user ORDER BY usercode LIMIT "+StartRow+", "+PageSize);
//擷取總頁數
MaxPage = RecordCount % PageSize;
if(RecordCount % PageSize == 0){
MaxPage = RecordCount / PageSize;
}else{
MaxPage = RecordCount/PageSize+1;
}
%>
<body class="UsePageBg STYLE13 STYLE18">
<table width="100%" border="0" bordercolor="#000000" class="InternalHeader">
<tr>
<td width="24%"><span class="STYLE13">分頁顯示記錄</span></td>
<td width="76%">
<span class="STYLE13"><%="總共"+RecordCount+"條記錄 - 當前頁:"+PageNo+"/"+MaxPage %> </span></td>
</tr>
</table>
<br>
<table width="100%" border="0" bordercolor="#000000" class="NormalTableTwo">
<tr>
<td width="18%" align="center" valign="middle" bordercolor="#000000" class="InternalHeader STYLE13 " >代碼</td>
<td width="20%" align="center" valign="middle" bordercolor="#000000" class="InternalHeader STYLE13 " >姓名</td>
</tr>
<%
int i = 1;
while (rs.next()) {
int bil = i + (PageNo-1)*PageSize;
%>
<tr>
<td align="center" valign="middle" bordercolor="#000000" class="NormalFieldTwo" ><span class="STYLE13"><%=rs.getString(1)%></span></td>
<td align="center" valign="middle" bordercolor="#000000" class="NormalFieldTwo" ><span class="STYLE13"><%=rs.getString(2)%></span></td>
</tr>
<%
i++;
}%>
</table>
<br>
<table width="100%" border="0" class="InternalHeader">
<tr>
<td class="STYLE13"><div align="center">
<%
out.print("<font size=4>");
//顯示第一頁或者前一頁的連結
//如果當前頁不是第1頁,則顯示第一頁和前一頁的連結
if(PageNo != 1){
PrevStart = PageNo - 1;
out.print("<a href=main_data.jsp?PageNo=1>第一頁 </a>: ");
out.print("<a href=main_data.jsp?PageNo="+PrevStart+">前一頁</a>");
}
out.print("[");
//列印需要顯示的頁碼
for(int c=CounterStart;c<=CounterEnd;c++){
if(c <MaxPage){
if(c == PageNo){
if(c %PageSize == 0){
out.print(c);
}else{
out.print(c+" ,");
}
}else if(c % PageSize == 0){
out.print("<a href=main_data.jsp?PageNo="+c+">"+c+"</a>");
}else{
out.print("<a href=main_data.jsp?PageNo="+c+">"+c+"</a> ,");
}
}else{
if(PageNo == MaxPage){
out.print(c);
break;
}else{
out.print("<a href=main_data.jsp?PageNo="+c+">"+c+"</a>");
break;
}
}
}
out.print("]");;
if(PageNo < MaxPage){ //如果當前頁不是最後一頁,則顯示下一頁連結
NextPage = PageNo + 1;
out.print("<a href=main_data.jsp?PageNo="+NextPage+">下一頁</a>");
}
//同時如果當前頁不是最後一頁,要顯示最後一頁的連結
if(PageNo < MaxPage){
LastRec = RecordCount % PageSize;
if(LastRec == 0){
LastStartRecord = RecordCount - PageSize;
}
else{
LastStartRecord = RecordCount - LastRec;
}
out.print(":");
out.print("<a href=main_data.jsp?PageNo="+MaxPage+">最後一頁</a>");
}
out.print("</font>");
%>
</div></td>
</tr>
</table>
<span class="STYLE13">
<%
rs.close();
statement.close();
connection.close();
%>
</span>
</body>
</html>
</style>