举例
#a.jsp:
<form action="b.jsp" method="post">
<input type="text" name="username" >
<input type="text" name="password" >
</form>#b.jsp
<%=request.getParameter("username")%>
<%=request.getParameter("password")%>request.getParameter一般只接受post和get方法传过来的值
                                                   ^^
图片和flash是不能传的

解决方案 »

  1.   

    这是你传递的参数呀,
    如果你从库里读出一个id,并传给下一个页面.
    id=rs.getInt("id");//设id是一个类型为int的数据库字段.a.jsp
    <a href="b.jsp?id=<%=id%>">在b.jsp中,就可以用
    request.getParameter("id");来得到这个传递过来的参数.
      

  2.   

    是jsp传过来的.
    比如 xxx.jsp?id=xxx
    得到的是xxx
    或者input name=id value=xxx
    submit 的时候xxx就传过去了
      

  3.   

    这个我也知道,带我的人给我的程序就是这样的.
    例如:当鼠标放在图片或flash上时,鼠标变小手,点下去就连到subject.jsp?id=1或subject.jsp?id=2
    的页面上了,我想问他是怎么使图片或flash成为1或2的,难道是随机的,按他们的排列顺序,我不信,
    可是我在程序里找不到设置图片或flash的代码,这到底是为什么?
      

  4.   

    ok!代码在这:
    <%@ page contentType="text/html;charset=gb2312" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>项目信息</title>
    <script language="JavaScript" type="text/JavaScript">
    <!--
    function MM_reloadPage(init) {  //reloads the window if Nav4 resized
      if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
        document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
      else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
    }
    MM_reloadPage(true);
    //-->
    </script>
    </head>
    <LINK href="css/text.css" rel=stylesheet>
    <body background="IMAGES/i_bac_9.jpg">
    <table width="1006" border="0" cellpadding="0" cellspacing="0">
      <!--DWLayoutTable-->
      <tr> 
        <td width="90" height="24"><div id="Layer1" style="position:absolute; width:181px; height:90px; z-index:1; left: 188px; top: 90px;"> 
            <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="180" height="90">
              <param name="wmode" value="transparent">
      <param name="movie" value="FLASH/NTS.swf">
              <param name="quality" value="high">
              <embed src="FLASH/NTS.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="180" height="90"></embed></object>
          </div>
        </td>
        <td width="817">&nbsp;</td>
        <td width="99">&nbsp;</td>
      </tr>
      <tr> 
        <td height="722">&nbsp;</td>
        <td valign="top"><table width="100%" border="0" cellpadding="0" cellspacing="0">
            <!--DWLayoutTable-->
            <tr> 
              <td height="171" colspan="2" valign="top" background="IMAGES/i_bac_15.jpg"><!--DWLayoutEmptyCell-->&nbsp;</td>
              <td width="25" rowspan="2" valign="bottom" background="IMAGES/i_bac_17.jpg"> 
                <table width="100%" border="0" cellpadding="0" cellspacing="0" background="IMAGES/i_bac_7.jpg" height="659" >
                  <!--DWLayoutTable-->
                  <tr> 
                    <td width="25" height="659" valign="bottom">&nbsp;</td>
                  </tr>
                </table>
              </td>
            </tr>
            <tr> 
              <td  width="15" height="525" valign="top"><table width="100%" border="0" cellpadding="0" cellspacing="0" background="IMAGES/i_bac_16.jpg">
                  <!--DWLayoutTable-->
                  <tr> 
                    <td width="15" height="525">&nbsp;</td>
                  </tr>
                </table></td>
              <td  width="777" valign="top" bgcolor="#FFFFFF">
    <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF">
                  <!--DWLayoutTable-->
                  <tr> 
                    <td width="777" height="50" valign="top"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="777" height="50">
                        <param name="movie" value="FLASH/in_lef_2.swf">
                        <param name="quality" value="high">
                        <param name="SCALE" value="exactfit">
                        <embed src="FLASH/in_lef_2.swf" width="777" height="50" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" scale="exactfit"></embed></object></td>
                  </tr>
                  <tr> 
                    <td height="6"></td>
                  </tr>
                  <tr>
                    <td height="462" align="center" valign="top" bgcolor="#FFFFFF"> 
                      <%
                      String isid = request.getParameter("id");
    if(isid==null){
    %>
                      <jsp:include page="subject/query.htm"/> 
                      <%
    }else{
    int id=Integer.parseInt(isid);
    if(id == 1){
    %>
                      <jsp:include page="subject/i_forge1.jsp"/> 
                      <%
    }else if(id == 2){
    %>
                      <jsp:include page="subject/i_award1.jsp"/> 
                      <%
    }

    %>
                    </td>
                  </tr>
                </table>
              </td>
            </tr>
            <tr> 
              <td height="26" colspan="3" valign="top"><table width="100%" border="0" cellpadding="0" cellspacing="0" background="IMAGES/i_bac_8.jpg">
                  <!--DWLayoutTable-->
                  <tr> 
                    <td width="817" height="26">&nbsp;</td>
                  </tr>
                </table></td>
            </tr>
          </table></td>
        <td>&nbsp;</td>
      </tr>
      <tr> 
        <td height="8">&nbsp;</td>
        <td height="8">&nbsp;</td>
        <td height="8">&nbsp;</td>
      </tr>
        <tr> 
        <td height="13"></td>
        <td align="center" valign="middle"><p><font color="#202020" size="2"><strong>&copy;2002-2003 
            版权所有</strong></font></p></td>
        <td></td>
      </tr></table>
    </body>
    </html>