servlet数据库操作，javaBean保存数据，返回jsp页面，jsp页的css失效？？？

应该是路径不对，把jsp和目录结构贴出来看看吧。

解决方案 »

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从servlet到jsp一般是用重定向还是转发？？？
servlet:import java.io.*;
import java.io.IOException;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.ServletException;
import com.bbs.connections.ConnectionFactory;
import com.bbs.bean.MyQuestionBean;public class MyQuestionServlet extends HttpServlet{public void doGet(HttpServletRequest req,HttpServletResponse res)
throws ServletException ,IOException{


               HttpSession session=req.getSession();
               String userName=(String)session.getAttribute("userName");

                int count;
                Connection conn=null;
                Statement stmt=null;
                ResultSet rs=null;
                StringBuffer sql=new StringBuffer();
                ConnectionFactory cf=new ConnectionFactory();
                try{
                conn=cf.getConnection();

                stmt=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
                sql.append("select * from noteTable where");
                sql.append(" notewriter='"+userName+"' order by  noteLastTime desc");

                rs=stmt.executeQuery(sql.toString());

                MyQuestionBean Mq=new MyQuestionBean();
                while(rs.next()){
                        Mq.setNoteIDs(Integer.toString(rs.getInt("noteID")));
                 Mq.setNoteTitles(rs.getString("noteTitle"));
                 Mq.setNotePics(rs.getString("notePic"));
                 Mq.setNoteRewriteNums(Integer.toString(rs.getInt("noteRewriteNum")));
                 Mq.setNoteLastTimes(rs.getString("noteLastTime"));
                }

                if(conn!=null){
                 conn.close();
                }

                req.setAttribute("Mq", Mq);
                RequestDispatcher rd=getServletContext().getRequestDispatcher("/myquestion.jsp");
                rd.forward(req,res);
         } catch(SQLException se){
                 System.out.println("SQL error");
                }
                }

                public void doPost(HttpServletRequest req,HttpServletResponse res)
                 throws ServletException,IOException{
                 doGet(req,res);
                }
        }
jsp:<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="java.util.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="forum.css" rel="stylesheet" type="text/css">
<style type="text/css">

</style></head><body>
<jsp:useBean id="Mq" class="com.bbs.bean.MyQuestionBean" scope="request"/>
<jsp:useBean id="Util" class="com.bbs.util.MyUtil"/>
<% String userName=(String)session.getAttribute("userName");%>
<table width="100%" >
   <tr>
     <td class="postauthor style2">你好<%=userName%>这是你的专家门诊</td>
   </tr>
</table>
<table width="100%" height="60" cellpadding="1" cellspacing="1" bgcolor="#000000" >
  <tr>
    <td width="5%" height="25" bgcolor="#009ACE" class="postauthor style1"><div align="center">状态</div></td>
    <td width="72%" bgcolor="#009ACE" class="postauthor style1"><div align="center">主题</div></td>
    <td width="6%" bgcolor="#009ACE" class="postauthor style1"><div align="center">回复</div></td>
    <td width="17%" bgcolor="#009ACE" class="postauthor style1"><div align="center">最后回复时间</div></td>
  </tr>


<%
Vector notes=Mq.getNoteIDs();

for(int i=0;i<notes.size();i++){

String noteID=Mq.getNoteIDs(i);
String noteTitle=Mq.getNoteTitles(i);
String notePic=Mq.getNotePics(i);
String noteRewriteNum=Mq.getNoteRewriteNums(i);
String noteLastTime=Mq.getNoteLastTimes(i);

int RewriteNum=Integer.parseInt(noteRewriteNum);
noteTitle=Util.ex_chinese(noteTitle);
noteLastTime=Util.ex_chinese(noteLastTime);
noteLastTime=(noteLastTime=="")?noteLastTime:noteLastTime.substring(2,15);
String pic=(RewriteNum==0)?"image/folder.gif":"image/istop.gif";
%>
  <tr>
    <td height="30" bgcolor="#FFFFFF"><div align="center"><img src=<%=pic%> width="18" height="16"> </div></td>
    <td bgcolor="#FFFFFF"><div align="left"> 　<img src="image/<%=notePic.trim()%>.gif" width="15" height="15"/><a href="note.jsp?noteID=<%=noteID%>"><%=noteTitle%></a> </div></td>
    <td bgcolor="#FFFFFF"><div align="center"><%=noteRewriteNum%> </div></td>
    <td bgcolor="#FFFFFF"><div align="center"><%=noteLastTime%> </div></td>
  </tr>
  <%}%>
</table></body>
</html>
路径不对，你看看你的url就知道了，url肯定指向那个servlet,因为你用servlet进行了转发，客户端浏览器不知道发生了转发，他认为是还是他请求的url,然后用这个按相对路径去取
css,按照这个url当然取不到css了.
你可以考虑用绝对路径，很多网站都这样做的。
谢谢楼上的，我在servlet里用了重定向！！！问题解决了！！！