JSP获取数据语句报错想找到问题

第一行报错，每行的String，getParameter都会报错

<%@ page import="com.test1.db.StudentDb" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<% //创建一个操作数据库的对象 StudentDb sdb = new StudentDb(); //获取表单中各个输入框中的值 String sid =request.getParameter("sid"); String sname = request.getParameter("sname"); String sage = request.getParameter("sage"); String ssex = request.getParameter("ssex"); String snativeplace = request.getParameter("snativeplace"); String smajor = request.getParameter("smajor"); String sclass = request.getParameter("sclass"); String snative = request.getParameter("snative");
//组装SQL语句
String sql = "insert into student(sid,sname,sage,ssex,snativeplace,smajor,sclass,snative) values("+sid+",'"+sname+"',"+sage+",'"+ssex+"','"+snativeplace+"','"+smajor+"','"+sclass+"','"+snative+"')";
//调用函数执行SQL语句

if (sdb.studentUpdate(sql)){
System.out.println("insert 语句为:"+sql);
System.out.println(sid+"号学生信息增加成功");
response.sendRedirect("student.jsp");
}else {
request.getRequestDispatcher("student.jsp").forward(request,response);
}

报的什么错，看看