我做毕设需要一个课程查询的模块 但JavaBean 我不会写哪位大哥帮帮小第还有
type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /login.jsp(26,12) File "/head.txt" not found
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:90)
org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:339)
org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:372)
org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1539)
org.apache.jasper.compiler.Parser.parse(Parser.java:126)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:220)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:203)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

具体错误是什么啊 望指教谢谢

package test14;

import java.awt.*;
import java.sql.*;

public class DBconn{
String DBDriver = "sun.jdbc.odbc.JdbcOdbcDriver";
String ConnStr = "jdbc:odbc:wzx";
Connection conn = null;
ResultSet rs = null;

public DBconn() {
try {
Class.forName(DBDriver);
}
catch(java.lang.ClassNotFoundException e) {
System.err.println("DBconn()"+e.getMessage());
}
}
public ResultSet executeQuery(String sql){
rs = null;
try
{
conn = DriverManager.getConnection(ConnStr,"sa","1234");
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
rs = stmt.executeQuery(sql);
}
catch(SQLException ex)
{
System.err.println("aq.executeQuery:"+ex.getMessage());
}
return rs;
}
}

谢谢 各位大哥了