Java开发网 - j2ee与<jsp:forward />的问题

Topic: j2ee与<jsp:forward />的问题

1.j2ee与<jsp:forward />的问题

Posted by: 秋天的回忆
Posted on: 2003-11-13 19:31

我的配置：
win2000server+Resin3.0+Apache2.4.07+MySql4.0.1+J2SDK1.4.1+J2EESDK1.3.1
当未安装J2EESDK1.3.1时在JSP页面中使用<jsp:forward />标签正常。

但当我安装J2EESDK1.3.1并配置完毕时，再次使用<jsp:forward>标签报出了如下错误：

500 Servlet Exception
java.lang.IllegalArgumentException: Request cannot be null
at javax.servlet.ServletRequestWrapper.<init>(ServletRequestWrapper.java:96)
at javax.servlet.http.HttpServletRequestWrapper.<init>(HttpServletRequestWrapper.java:87)

页面代码如下：

<%@ page language="java" import="java.sql.*" %>
<%@ page buffer="10" autoFlush="true"%>
<jsp:useBean id="myzc" class="Zc" scope="request" />
<html>
<head>
<title>“e路通”电子商务网站</title>
<meta HTTP-EQUIV='REFRESH' charset=gb2312 content=10;url=index.jsp>
</head>
<body>
<%
String id=request.getParameter("txtid");
String pass=request.getParameter("txtpass");
String passagain=request.getParameter("txtpassagain");
String nc=request.getParameter("txtnc");
String email=request.getParameter("txtemail");
String name=request.getParameter("txtname");
String zz=request.getParameter("txtzz");
String tel=request.getParameter("txttel");
String yb=request.getParameter("txtyb");
myzc.zc1();
if(myzc.zc3(id))
{
myzc.zc2(id,pass,passagain,nc,email,name,zz,tel,yb);

%>
<jsp:forward page="/alert/zcok.jsp"/>
<%}
else
{
%>
<jsp:forward page="/alert/zcerror.jsp"/>
<%}%>
</body>
</html>

但再次删除J2EESDK1.3.1时又可以正常使用，我被整得一点脾气都没有了，希望明白的朋友能够指点指点，谢谢啦!

2.Re:j2ee与<jsp:forward />的问题 [Re: 秋天的回忆]	Copy to clipboard
Posted by: why Posted on: 2003-11-13 20:55 What's on your CLASSPATH (with and without J2EESDK 1.3.1)?

3.Re:j2ee与<jsp:forward />的问题 [Re: 秋天的回忆]	Copy to clipboard
Posted by: nsd Posted on: 2003-11-16 12:56 你试着把forward的内容放到<html>标记之前试试。

4.Re:j2ee与<jsp:forward />的问题 [Re: 秋天的回忆]	Copy to clipboard
Posted by: why Posted on: 2003-11-16 19:00 also, <%@ page buffer="10" autoFlush="true"%> ... shouldn't it be "10kb"?

5.Re:j2ee与<jsp:forward />的问题 [Re: 秋天的回忆]	Copy to clipboard
Posted by: nsd Posted on: 2003-11-17 22:19 修改buffer设置是没有用的，看看servlet的API文档就知道了。redirect之前不允许有任何输出到out。