jsp中的中文参数传递问题

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" %>

<% request.setCharacterEncoding("gb2312");%>

<jsp:useBean id="DBConnection" scope="page" class="com.guestbook.DBConnection"/>

Boolean a=(Boolean)session.getAttribute("a");

String search=request.getParameter("search");

String keyword=request.getParameter("key");

String s;

byte temp[];

try{

temp=keyword.getBytes("iso-8859-1");

s=new String(temp);

}

catch(Exception e){}

Connection conn=DBConnection.getConnectionToAccess(application.getRealPath("/data/guestbook.mdb"));

Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);

<html>

<head>

<!--

body {

border: 1px 1 #CCCCCC;

}

.bian {

border-top-width: 1px;

border-top-style: solid;

border-top-color: #969696;

border-bottom-width: 1px;

border-bottom-style: solid;

border-bottom-color: #999999;

}

.f12 {

font-family: "宋体";

font-size: 12px;

color: #000000;

text-decoration: none;

line-height: 23px;

height: auto;

}

.bian1 {

border-right-width: 1px;

border-left-width: 1px;

border-right-style: solid;

border-left-style: solid;

border-right-color: #969696;

border-left-color: #969696;

}

a:link {

font-family: "宋体";

font-size: 12px;

color: #333333;

text-decoration: none;

}

a:visited {

font-family: "宋体";

font-size: 12px;

color: #333333;

text-decoration: none;

}

a:hover {

font-family: "宋体";

font-size: 12px;

color: #333333;

text-decoration: underline;

}

a:active {

font-family: "宋体";

font-size: 12px;

color: #333333;

text-decoration: none;

}

input {

font-size: 12px;

}

button {

margin: 1px;

padding: 1px;

border: 1px solid #CCCCCC;

background-color: #CCCCCC;

}

-->

</style>

<!--

function go(src,q)

{

var ret;

ret = confirm(q);

if(ret!=false)window.location=src;

}

function openwin(url, width, height)

{

var Win = window.open(url,"openScript",'width=' + width + ',height=' + height + ',resizable=0,scrollbars=1,menubar=0,status=1');

}

function openreply()

{

document.viewreply.replycodes.value=document.replyform.replycode.value;

var popupWin = window.open('Viewreply.asp', 'viewreply_page', 'scrollbars=yes,width=700,height=450');

document.viewreply.submit()

}

-->

</script>

function check(){

if(post.key.value==""){

alert("请输入搜索关键字！");

return false;

}

if(post.key.value.length>20){

alert("您的称呼不超过20位");

return false;

}

return true;

}

</script>

</head>

<tr>

</tr>

</table>

<tr>

<td>

</td>

</tr>

</form>

</table>

<tr>

<td style="border-right: 1px solid #969696" vAlign=top width=100

bgColor=#f1f1f1 height="396" >

<TABLE width="100%" height="135" border=0 cellPadding=5 cellSpacing=0

borderColor=#111111 class="f12" id=AutoNumber1 style="BORDER-COLLAPSE: collapse">

<TBODY>

<TR>

</TR>

<TR>

<TD id=menu3 onmouseover="document.all.menu3.bgColor='#5581D2'"

onmouseout="document.all.menu3.bgColor='#F1F1F1'" align=right

width="100%" height=15><B><a href="search.jsp">搜索留言</a></B></TD>

</TR>

</TBODY>

</TABLE>

<tr>

</tr>

</table>

if (search==null)

{

<tr>

</tr>

<tr>

</p>

<P align=center>请输入要搜索的内容：<BR>

<BR>

</FORM>

搜索范围将包括：留言者的正文以及回复内容关键字。

<p></P>

<p><br>

<br>

</p></td>

</tr>

</table>

<%}else{

request.setCharacterEncoding("gb2312");

String sql="select * from Guestbook where content like '%"+keyword+"%' or recontent like '%"+keyword+"%' order by id DESC";

ResultSet Rs=stmt.executeQuery(sql);

int intPageSize; //一页显示的记录数

int intRowCount; //记录总数

int intPageCount; //总页数

int intPage; //待显示页码

String strPage;

int i;

//设置一页显示的记录数

intPageSize = 3;

//取得待显示页码

strPage = request.getParameter("page");

if(strPage==null)//表明在QueryString中没有page这一个参数，此时显示第一页数据

{

intPage = 1;

} else//将字符串转换成整型

{

intPage = java.lang.Integer.parseInt(strPage);

if(intPage< 1) intPage = 1;

}

//获取记录总数

Rs.last();

intRowCount = Rs.getRow();

//记算总页数

intPageCount = (intRowCount+intPageSize-1) / intPageSize;

//调整待显示的页码

if(intPage >intPageCount) intPage = intPageCount;

if(intPageCount >0){

//将记录指针定位到待显示页的第一条记录上

Rs.absolute((intPage-1) * intPageSize+1);

//显示数据

i = 0;

while(i< intPageSize && !Rs.isAfterLast()){

//读留言信息

int id=Rs.getInt("id");

String username=Rs.getString("username");

String userface=Rs.getString("userface");

//String userurl=Rs.getString("userurl");

String usermail=Rs.getString("usermail");

//String userqq=Rs.getString("userqq");

String usertitle=Rs.getString("usertitle");

String content=Rs.getString("content");

String mydate=Rs.getString("mydate");

String remydate=Rs.getString("remydate");

String recontent=Rs.getString("recontent");

String ip=Rs.getString("ip");

<br>

<tr>

<tr>

<td colspan="2" align="center"><img src="images/face/<%=userface%>.gif" width="90" height="90"><br>

<br>

</tr>

<tr>

</tr>

<tr>

</tr>

</table>

</div></td>

<tr>

时间：<%=mydate%></font></td>

</tr>

</table>

</td>

</tr>

<tr>

<tr>

</tr>

</table>

if(recontent!=null)

{

<tr>

<td bgcolor="#FFFFFF"><font color="5581d2">管理员回复：<%=recontent%></font><br>

<br>

</tr>

</table>

}

</td>

</tr>

if(a==null||a.booleanValue()==false)

{}else{

<tr>

<td colspan="2" bgcolor="#FFFFFF"><div align="right"><a href="javascript:go('Del.jsp?id=<%=id%>','您确定要删除?')">删除</a>

留言IP：<font color="#333333"><%=ip%></font></div></td>

</tr>

<%}%>

</table>

<br>

Rs.next();

i++;

//读流言信息结束

}

<br>

<tr>

<td width="50%"><div align="right">第<%=intPage%>页共<%=intRowCount%>条记录/共<%=intPageCount%>页

if(intPage<2){

out.print("首页 | 上一页");

}else{%>

<a href="search.jsp?page=1&search=search&key=<%=request.getParameter("key")%>">首页 </a> | <a href="search.jsp?page=<%=intPage-1%>&search=search&key=<%=request.getParameter("key")%>">上一页</a>

<%}%>

if((intPageCount-intPage)<1)

{

out.print("下一页 | 尾页");

}else{%>

<a href="search.jsp?page=<%=intPage+1%>&search=search&key=<%=keyword%>">下一页</a> | <a href="search.jsp?page=<%=intPageCount%>&search=search&key=<%=request.getParameter("key")%>">尾页</a>

<%}

}

else{}

</div></td>

</tr>

</table>

<%}

if(conn!=null)

{

conn.close();

}

if(stmt!=null)

{

stmt.close();

}

%></td>

</tr>

</table>

<tr>

</div></td>

</tr>

</table>

</body>

</html>

这是我用jsp写的一个网页，但是在两个页面之间之间转换时总是传不过中文参数过去。请各位高手帮以下忙。

当点击下一页时就不能从数据库里面读数据了，读的数据都是空值。