struts下载搞了一天没搞定,用了smartupload

[cckylin]

SmartUpload su = new SmartUpload();
try {
su.initialize(this.getServlet().getServletConfig(),
httpServletRequest, httpServletResponse);
}
catch (ServletException ex2) {
}
su.setContentDisposition(null);
try {
su.downloadField("USERNAME=adsfasdfasdf",
"application/x-msdownload", "k.txt"); //这个方法我改了,在jsp里是好用的!!!
}
catch (ServletException ex1) {
}
catch (IOException ex1) {
}
catch (SQLException ex1) {
}
这是action的代码提示getOutputStream() has already been called for this response

2 如果把这段代码考到jsp里也不行!
org.apache.jasper.runtime.ServletResponseWrapperInclude.getOutputStream
有什么好的办法?在struts没有提供用户下载并转到自己要到页面的办法吗?

[cckylin]

jsp里这样写的
<%
SmartUpload su = new SmartUpload();
su.initialize(pageContext);
su.setContentDisposition(null);
su.downloadField("adfasdfasdfasdf","application/x-msdownload","k.txt");//这个方法我改过,单独的jsp是好使的
%>

[dlxu]

下载？还是上传？

下载的话
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition", "attachment; filename=\"\""
ServletOutputStream out = response.getOutputStream();
然后用out.write()方法写文件内容

[cckylin]

这个问题没人搞定?

[cckylin]

大家在struts 怎么实现下载的?

[cckylin]

我要实现下载,用完上面这段的话,就没办法再转到需要的页面了!

[flyxxxxx]

下载是不能转到任何页面的(无论用什么技术)!

[cckylin]

我是这样想的,想把数据先写到struts 要转到的页面,然后用javascript 来提供下载! 不知道这样可不可行