在jsp页面中怎样将request传到下一个页面 要的参数都传给下一页啊比如 next.jsp?ID1=xx&ID2=xx数据库里读出来,我放在ResultSet中,然后每一页放在ArrayList中,再显示出来 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 分页,我一般是这么做的把数据库select出来的信息放在一个vector中然后现实1-10个,根据vector.size()出现“1 2 3 4“的分页链接2就显示11-20,依此类推vector可以放在session中。 <%@ page contentType="text/html; charset=gb2312"%><%@ include file="/DataIni/DataOpen.jsp"%><%@ include file="/ScriptLib/Init.jsp"%><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><meta name="GENERATOR" content="Microsoft FrontPage 4.0"><meta name="ProgId" content="FrontPage.Editor.Document"><title></title><link rel="stylesheet" type="text/css" href="/StyleLib/Default_Style_Sheet.css"></head><body><%@ include file="/TemplateLib/Head.jsp"%><br><center><table border="0" cellpadding="0" cellspacing="0" width="80%"> <tr> <td width="10%" class="TdClass_Head">公文审批</td> </tr></table><script>function SelectCategory(select){ for(i=0;i<select.length;i++) { if(select.options[i].selected) { window.location.href="List.jsp?Category="+select.options[i].text+"&Page=1"; } }}</script><table border="0" cellpadding="0" cellspacing="0" width="80%"> <tr> <td width="10%" class="TdClass_0">公文类别</td><td width="90%" class="TdClass_1"> <select name="Category" size=1 style="width:80%" onchange="SelectCategory(this)"> <option value="">--请选择--</option> <% String strCategory; strCategory=request.getParameter("Category"); if(strCategory==null) { strCategory=""; } odbcQuery="select distinct Category from Doc"; odbcRs=odbcStmt.executeQuery(odbcQuery); String Category; Category=""; while(odbcRs.next()) { Category=outStr((String)odbcRs.getString("Category"));%> <option value="<%=Category%>" <%if(strCategory.equals(Category)){%>selected<%}else{%><%}%>><%=Category%></option><% } odbcRs.close();%> </select> <input type="button" value="拟制" id="NewItem" name="NewItem" onclick="window.location.href='/System/Doc/New.jsp';"> </td> </tr></table><table border="0" cellpadding="0" cellspacing="0" width="80%"><%int Page;String strPage;strPage=request.getParameter("Page");if(strPage==null){ Page=1;}else{ Page=java.lang.Integer.parseInt(strPage);}if(strCategory!=null){ odbcQuery="select * from Doc where Category='"+strCategory+"'";}else{ odbcQuery="select * from Doc";} odbcRs_=odbcStmt_.executeQuery(odbcQuery); int RecordSum,PageSum,PageSize; RecordSum=0; PageSum=0; odbcRs_.last(); RecordSum=odbcRs_.getRow(); PageSize=10; PageSum=(RecordSum+PageSize-1)/PageSize; int iCount; if(Page>PageSum){Page=PageSum;} if(PageSum>0) { odbcRs_.absolute((Page-1)*PageSize+1); String Id,Subject,Author,History; iCount=0; while(iCount<PageSize&&!odbcRs_.isAfterLast()) { Id=outStr((String)odbcRs_.getString("ID")); Subject=outStr((String)odbcRs_.getString("Subject")); Author=outStr((String)getUserName(odbcRs_.getString("Author"))); History=outStr((String)odbcRs_.getString("History"));%><script>function ShowBody(Id){ var hwnd=window.open('ShowBody.jsp?Id='+Id,'','');}</script> <tr> <td width="20%" class="TdClass_1"> <a href="#" onclick="ShowBody('<%=Id%>')">主题:<%=Subject%>[作者:<%=Author%>(日期时间:<%=History%>)]</a> <a href="ModifyResult.jsp?Id=<%=Id%>">修改</a> <a href="DelResult.jsp?Id=<%=Id%>">删除</a> </td> </tr><% odbcRs_.next(); iCount++; } } odbcRs_.close();%></table> <table border="0" cellpadding="0" cellspacing="0" width="80%"> <tr> <td width="25%" class="TdClass_Head"><%if(Page>1){%><a href="List.jsp?Category=<%=Category%>&Page=<%=Page-1%>">上一页</a><%}%></td> <td width="25%" class="TdClass_Head">记录<%=RecordSum%>条</td> <td width="25%" class="TdClass_Head">共有<%=PageSum%>页</td> <td width="25%" class="TdClass_Head"><%if(Page<PageSum){%><a href="List.jsp?Category=<%=Category%>&Page=<%=Page+1%>">下一页</a><%}%></td> </tr></table></center><%@ include file="/TemplateLib/Tail.jsp"%><%@ include file="/DataIni/DataClose.jsp"%></body></html> 使用<jsp:forward>是可以带参数的。例如:<jsp:forward page="newpage.jsp"> <jsp:param name="parametername" value="parametervalue"/></jsp:forward>另一种方法,就是把这些需要用到的信息保存在session中。 现在我把查询出的数据放到struts的ActionForm中了,这样就需要每翻一页都查数据库一次了,而且也可以不用传递查询字段了。 基本原理应该就时把查出的数据放到session中吧,不知会不会增加服务器的负担,我一直对jsp的session实现机制搞不明白,顺便问一下,session的数据是存到什么地方的,书上说session用cookie来实现,指的是把数据放到客户端的cookie里吗,在session中存放这么多数据会不会影响服务器性能。 可以用session啊,也可以佣隐藏表单或者地址传 分页 跳转 下拉框的问题 dhtmlXTree 隐藏节点和提高效率 CAS搭建SSO后,怎么去掉HTTPS跳转HTTP时的提示 请问一下session过期时间是怎样算的 用java怎么生成.hdr文件呢 SELECT语句的查询 java jsp 求助!No action instance for path /loginin could be created问题 求一本书 Core Servlets and JavaServer Pages class的打包问题? 求助:为什么在win2000中启动tomcat5的服务时老是失败(错误 1053)? jsp发邮件
把数据库select出来的信息放在一个vector中然后现实1-10个,根据vector.size()出现“1 2 3 4“的分页链接
2就显示11-20,依此类推vector可以放在session中。
<%@ include file="/DataIni/DataOpen.jsp"%>
<%@ include file="/ScriptLib/Init.jsp"%>
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title></title>
<link rel="stylesheet" type="text/css" href="/StyleLib/Default_Style_Sheet.css">
</head><body>
<%@ include file="/TemplateLib/Head.jsp"%>
<br>
<center>
<table border="0" cellpadding="0" cellspacing="0" width="80%">
<tr>
<td width="10%" class="TdClass_Head">公文审批</td>
</tr>
</table>
<script>
function SelectCategory(select)
{
for(i=0;i<select.length;i++)
{
if(select.options[i].selected)
{
window.location.href="List.jsp?Category="+select.options[i].text+"&Page=1";
}
}
}
</script>
<table border="0" cellpadding="0" cellspacing="0" width="80%">
<tr>
<td width="10%" class="TdClass_0">公文类别</td><td width="90%" class="TdClass_1">
<select name="Category" size=1 style="width:80%" onchange="SelectCategory(this)">
<option value="">--请选择--</option>
<%
String strCategory;
strCategory=request.getParameter("Category");
if(strCategory==null)
{
strCategory="";
}
odbcQuery="select distinct Category from Doc";
odbcRs=odbcStmt.executeQuery(odbcQuery);
String Category;
Category="";
while(odbcRs.next())
{
Category=outStr((String)odbcRs.getString("Category"));
%>
<option value="<%=Category%>" <%if(strCategory.equals(Category)){%>selected<%}else{%><%}%>><%=Category%></option>
<%
}
odbcRs.close();
%>
</select>
<input type="button" value="拟制" id="NewItem" name="NewItem" onclick="window.location.href='/System/Doc/New.jsp';">
</td>
</tr>
</table><table border="0" cellpadding="0" cellspacing="0" width="80%">
<%
int Page;
String strPage;
strPage=request.getParameter("Page");
if(strPage==null)
{
Page=1;
}
else
{
Page=java.lang.Integer.parseInt(strPage);
}
if(strCategory!=null)
{
odbcQuery="select * from Doc where Category='"+strCategory+"'";
}
else
{
odbcQuery="select * from Doc";
}
odbcRs_=odbcStmt_.executeQuery(odbcQuery);
int RecordSum,PageSum,PageSize;
RecordSum=0;
PageSum=0;
odbcRs_.last();
RecordSum=odbcRs_.getRow();
PageSize=10;
PageSum=(RecordSum+PageSize-1)/PageSize;
int iCount;
if(Page>PageSum){Page=PageSum;}
if(PageSum>0)
{
odbcRs_.absolute((Page-1)*PageSize+1);
String Id,Subject,Author,History;
iCount=0;
while(iCount<PageSize&&!odbcRs_.isAfterLast())
{
Id=outStr((String)odbcRs_.getString("ID"));
Subject=outStr((String)odbcRs_.getString("Subject"));
Author=outStr((String)getUserName(odbcRs_.getString("Author")));
History=outStr((String)odbcRs_.getString("History"));
%>
<script>
function ShowBody(Id)
{
var hwnd=window.open('ShowBody.jsp?Id='+Id,'','');
}
</script>
<tr>
<td width="20%" class="TdClass_1">
<a href="#" onclick="ShowBody('<%=Id%>')">主题:<%=Subject%>[作者:<%=Author%>(日期时间:<%=History%>)]</a>
<a href="ModifyResult.jsp?Id=<%=Id%>">修改</a>
<a href="DelResult.jsp?Id=<%=Id%>">删除</a>
</td>
</tr>
<%
odbcRs_.next();
iCount++;
}
}
odbcRs_.close();
%>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="80%">
<tr>
<td width="25%" class="TdClass_Head"><%if(Page>1){%><a href="List.jsp?Category=<%=Category%>&Page=<%=Page-1%>">上一页</a><%}%></td>
<td width="25%" class="TdClass_Head">记录<%=RecordSum%>条</td>
<td width="25%" class="TdClass_Head">共有<%=PageSum%>页</td>
<td width="25%" class="TdClass_Head"><%if(Page<PageSum){%><a href="List.jsp?Category=<%=Category%>&Page=<%=Page+1%>">下一页</a><%}%></td>
</tr>
</table></center>
<%@ include file="/TemplateLib/Tail.jsp"%>
<%@ include file="/DataIni/DataClose.jsp"%>
</body></html>
例如:<jsp:forward page="newpage.jsp">
<jsp:param name="parametername" value="parametervalue"/>
</jsp:forward>另一种方法,就是把这些需要用到的信息保存在session中。