jsp页面提交到Servlet后如何定位到Frame中去

jsp页面:
<%@ page contentType="text/html; charset=GBK" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">

</style>
<script language="javascript" type="text/javascript">
function va()
{
document.form1.username.value="";
document.from1.Password.value="";}
</script>
</head><body>
<div id="Layer1">
  <form id="form1" name="form1" method="post" action="/BBSWebModule/userservlet">
    <table width="100%" border="1" cellspacing="0" cellpadding="0">
      <tr>
        <td colspan="3" align="left" valign="top"><img src="images/20051122144654.gif" width="287" height="216"  alt=""/></td>
      </tr>
      <tr>
        <td align="right"><span class="STYLE4">用户名</span><strong>：</strong></td>
        <td colspan="2" align="left" valign="middle"><input type="text" name="username" /></td>
      </tr>
      <tr>
        <td width="34%" align="right"><span class="STYLE4">密码</span><span class="STYLE5">：</span></td>
        <td colspan="2" align="left" valign="middle"><label>
          <input type="password" name="Password" />
        </label></td>
      </tr>
      <tr>
        <td align="right"><input name="image" type="image"src="images/6.gif" width="60" height="30"  alt="" /></td>
        <td width="23%"><label><img src="images/2.gif" width="60" height="30"  alt="" onclick="return va()"/></label></td>
        <td width="43%"><img src="images/151617693.gif" width="90" height="22"  alt=""/></td>
      </tr>
      <tr>
        <td colspan="3" align="left"><img src="images/ggb.gif" width="218" height="190"  alt=""/></td>
      </tr>
    </table>
  </form>
</div>
</body>
</html>Servlet页面:
package BBSServlet;import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import BBSConnection.*;
import java.sql.*;
import BBSBean.*;
import BBSBean.UserBean;
public class UserServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";
    //实例化数据连接对象
    Connection con = null;
    PreparedStatement ps = null;
    ResultSet rs = null;
    //Initialize global variables
    public void init() throws ServletException {
    }    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        request.setCharacterEncoding("GBK");
        response.setCharacterEncoding("GBK");
        HttpSession session = request.getSession();
        //获取文本框的值
        String UserName = request.getParameter("username");
        String PassWord = request.getParameter("Password");        String Message = null;
        String message = null;
        if (UserName.equals("") && PassWord.equals("")) {
            Message = "用户名与密码不能为空，请核实后再次登录";
        } else if (UserName.equals("")) {
            Message = "用户名不能为空，请重新填写";
        } else if (PassWord.equals("")) {
            Message = "密码不能为空，请重新填写";
        } else {
            try {
                con = DBConnection.getCon();
                ps = con.prepareStatement(
                        "select * from Users where UserName=? and UserPassWord=?");
                ps.setString(1, UserName);
                ps.setString(2, PassWord);
                rs = ps.executeQuery();
                if (rs.next()) {
                    String uname = rs.getString(1);
                    String upassword = rs.getString(2);
                    UserBean userbean =new UserBean();
                    userbean.setUserName(uname);
                    userbean.setUserPassWord(upassword);
                    String ub = null;
                    session.setAttribute("ub", userbean);
                    request.getRequestDispatcher("topic.jsp").forward(request,
                            response);
                } else {
                    Message = "您的用户名和密码不存在，请您先注册再登录";                }
                session.setAttribute("message", Message);
                request.getRequestDispatcher("error.jsp").forward(request,
                        response);
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                DBConnection.closeResultSet(rs);
                DBConnection.closeStatement(ps);
                DBConnection.closeConnection(con);
            }        }    }    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }    //Clean up resources
    public void destroy() {
    }
}frame框架：<%@page contentType="text/html; charset=GBK"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"/>
<title>无标题文档</title>
</head>
<frameset rows="100,*" cols="*">
  <frame src="top.jsp" name="topFrame" scrolling="No" noresize="noresize" id="topFrame" title="topFrame"/>
  <frameset rows="*" cols="311,*">
    <frame src="left.jsp" name="leftFrame" scrolling="No" noresize="noresize" id="leftFrame" title="leftFrame"/>
    <frame src="main.jsp" name="mainFrame" id="mainFrame" title="mainFrame"/>
  </frameset>
</frameset>
<noframes>
<body></body>
</noframes>
</html>
jsp页面提交到Servlet后如何定位到Frame的mainFrame中去

解决方案 »

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<form id="form1" name="form1" method="post" action="/BBSWebModule/userservlet" target="mainFrame">
你指向框架frame就可以，因不上你是用session存的，