struts中的一个问题

djsone

struts中自带的一个例子struts-upload，我用javac UploadAction.java编译时总出现下面的错误：
UploadAction.java:101: cannot resolve symbol
symbol : class UploadForm
location : class org.apache.struts.webapp.upload.UploadAction
              if (form instanceof UploadForm) {
                                           ^

UploadAction.java:111: cannot resolve symbol
symbol : class UploadForm
location : class org.apache.struts.webapp.upload.UploadAction
              UploadForm theForm = (UploadForm) form;
              ^

UploadAction.java:111: cannot resolve symbol
symbol : class UploadForm
location : class org.apache.struts.webapp.upload.UploadAction
              UploadForm theForm = (UploadForm) form;
                                                     ^

请问这是为什么呢？好像去掉UploadForm.java和UploadAction.java中的package ……就能编译通过，如果不去该怎办呢？

djsone

有人在吗？快帮帮我。。。

djsone

西西，知道了……