这样是什么错误：'class'or 'interface' expected

我找不到错处？
<html>
<head>
</head>
<body>
<%@ page language="java" import="java.sql.*,sql_data;"%>
<%@ page contentType="text/html;charset=gb2312"%>
<jsp:useBean id="sqlbean" class="sql_data" scope="session" />
<%! String name,email,url,body,sql; %>
<%
name = request.getParameter("name");
email = request.getParameter("email");
url = request.getParameter("url");
body = request.getParameter("body");
if (name!=""&&email!=""&&body!="")
{
sql="insert into guestbook (name,email,url,body) values('"+name+"','"+email+"','"+url+"','"+body+"')";
sqlbean.executeInsert(sql);
}
else
{
out.print("<b><font color=red>Sorry,Please enter your name,email and body!!!</font></b>");
}
%>
<%
ResultSet RScount = sqlbean.executeQuery("SELECT * FROM guestbook");
int i=0;
while (RScount.next())
{
i++;
}
%>
<%-- <p><a name=see><B>Now,<%= RScount %> Records.</B></a></p> --%>
<p><B>现在有<%= i %>  条纪录</B></p>
<%
RScount.close();
i=0;
%>
<p>&nbsp;</p>
<%
ResultSet RS=sqlbean.executeQuery("SELECT * FROM guestbook");
while (RS.next())
{
name=RS.getString("name");
email=RS.getString("email");
url=RS.getString("url");
body=RS.getString("body");
%>
<table border=1 width=80%>
<tr>
<td width=30%>昵称:</td><td width=70%><%=name%>
</tr>
<tr>
<td width=30%>电子邮件:</td><td width=70%><a href="mailto:<%=email%>"><%=email%></a></td>
</tr>
<tr>
<td width=30%>个人主页地址:</td><td width=70%><a href="<%=url%>"><%=url%></a></td>
</tr>
<tr>
<td width=30%>内容:</td><td width=70%><%=body%></td>
</tr>
</table>
<hr>
<%
}
RS.close();
%>
</body>
</html>