StringBuffer sql = new StringBuffer("");
sql.append(
"select * from (select temp.*,rownum num from (");
sql.append(sqlStatement);
sql.append(") temp) where num between ? and ?");
sql.append(
"select * from (select temp.*,rownum num from (");
sql.append(sqlStatement);
sql.append(") temp) where num between ? and ?");
StringBuffer sql = new StringBuffer("");
sql.append(
"select * from (select temp.*,rownum num from (");
sql.append(sqlStatement);
sql.append(") temp) where num between ? and ?");
>>>
如果需要排序呢?
而且这种方法效率极低.试一下两万条记录，再加上两三个join,估计得花上个几十秒的。
把SQL改成:
select * from (select *,rownum from (your sqlStatement) where rownum<nEnd minus
select *,rownum from (your sqlStatement) where rownum<nStart )
另外要取出排序字段名,用别名处理.
from (select table.id,rownum num
from (select table.id
from table order by id))
where num between startnum and endnum;
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/taglib/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/taglib/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/taglib/struts-html.tld" prefix="html" %>
<html:html>
<head>
<title>
Login Success!
</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<html:form action="/edit">
<body bgcolor="#FFFFFF" text="#000000">
<table width="70%" cellpadding="0" cellspacing="0" style="" align="center">
<!--判断list是否存在，如果不存在显示无信息-->
<logic:notPresent name="list">
<tr><td>无信息</td></tr>
</logic:notPresent>32
</table>
<!--判断list是否存在，如果存在，则执行下面的代码，如果不存在则跳过-->
<logic:present name="list">
<XML ID="xmlParts">
<?xml version="1.0" ?>
<parts>
<!--循环输出变量名称为list中得数据 taskList是循环的临时变量 type指定list中的每个实例的类型-->
<logic:iterate name="list" id="taskList" scope="request" type="******.SucessVO">
<part>
<username> <bean:write name="taskList" property="stuName"/<!--stuName 是SucessVO类中的成员变量名称-->> </username>
<userage> <bean:write name="taskList" property="stuAge"/<!--stuAge 是SucessVO类中的成员变量名称-->> </userage>
<usersex> <bean:write name="taskList" property="stuSex"/<!--stuSex 是SucessVO类中的成员变量名称-->> </usersex>
</part>
</logic:iterate>
</parts>
</XML>
<div style="height:200px;">
<table border="10" cellpadding="2" cellspacing="0" datasrc=#xmlParts id="tb1" datapagesize="5">
<tr>
<td><input type=radio name=chk onclick="this.value = this.nextSibling.value"><input type=hidden datafld=username></td>
<td><a href="#" onclick="alert(this.chilren[0].innerText)"><div datafld="username"></div></td>
<td><div datafld="userage"></div></td>
<td><div datafld="usersex"></div></td>
</tr>
</table>
</div>
<INPUT type="button" value=" << " onClick="tb1.firstPage()">
<INPUT type="button" value=" < " onClick="tb1.previousPage()">
<INPUT type="button" value=" > " onClick="tb1.nextPage()">
<INPUT type="button" value=" >> " onClick="tb1.lastPage()">
</logic:present>
<input type=button value="commit" onclick="test()">
<script>
function test()
{
var oChk = document.all.chk;
for(var i=0;i<oChk.length; i++)
if(oChk[i].checked)
{
alert(oChk[i].value)
document.forms[0].submit();
}
}
</script>
</body>
</html:form>
</html:html>
我以前倒是做过一个，不过一个装linux的时候不小心搞丢了，
给你点建议吧，你自己做这个时候把那个几变量搞明白就行了，不要照般事例
<%
/*传递变量说明
totalCount:总计录;pageURL:本页；pageCommonLink：共同链接
*/ String pages=request.getParameter("pages"); //取当前页数
int pageCount=0; //定义页数及每页显示数目
int pageInt=1;
if(pages==null)pageInt=1; //没有点击页数
else
{
pageInt=Integer.parseInt(pages);
}
pageCount=(totalCount%displayCount==0)?totalCount/displayCount:totalCount/displayCount+1;
int beginI=(pageInt-1)*displayCount+1;
int endI=(pageInt*displayCount>totalCount)?totalCount:pageInt*displayCount;
%>
<style type="text/css">
a.fontColors:link {
font-size: 12px;
color: #003366;
text-decoration: none;
}
a.fontColors:visited {
font-size: 12px;
color: #003366;
text-decoration: none;
}
a.fontColors:hover {
font-size: 12px;
color: #003366;
text-decoration: underline;
}
a.fontColors:active {
font-size: 12px;
color: #003366;
text-decoration:none;
}
</style>
<table width="100%" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td width="35%"> <div align="center"><font color="003366" style="font-size:12px">共有<%=totalCount%>条，目前是第<%=pageInt%>页</font></div></td>
<td width="13%"> <div align="center">
<%if(pageInt>1){%>
<a class="fontColors" href="<%=pageURL%>?pages=1<%=pageCommonLink%>">第一页</a>
<%}%>
</div></td>
<td width="10%"> <div align="center">
<%if(pageInt>1){%>
<a class="fontColors" href="<%=pageURL%>?pages=<%=pageInt-1%><%=pageCommonLink%>">上一页</a>
<%}%>
</div></td>
<td width="10%"> <div align="center">
<%if(pageInt<pageCount){%>
<a class="fontColors" href="<%=pageURL%>?pages=<%=pageInt+1%><%=pageCommonLink%>">下一页</a>
<%}%>
</div></td>
<td width="10%"> <div align="center">
<%if(pageInt<pageCount){%>
<a class="fontColors" href="<%=pageURL%>?pages=<%=pageCount%><%=pageCommonLink%>">最后页</a>
<%}%>
</div></td>
<td width="22%"><div align="right"><font color="#003366" style="font-size:12px">转到 </font><select id="xPages2" style="height:18;font-size:9pt" onChange="javascript:self.location='<%=pageURL%>?pages='+xPages2.options[xPages2.selectedIndex].value+'<%=pageCommonLink%>&temps=<%=System.currentTimeMillis()%>'">
<%for(int i=1;i<=pageCount;i++){%>
<option value="<%=i%>" <%=(pageInt==i)?"selected":""%>><%=i%></option>
<%}%>
</select><font color="#003366" style="font-size:12px"> 页</font></div></td>
</tr>
</table>
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