upload file

  java code part:

    public ActionForward save(ActionMapping actionMapping,
            ActionForm actionForm, HttpServletRequest httpServletRequest,
            HttpServletResponse httpServletResponse) throws Exception ...{
        DynaActionForm daf = (DynaActionForm) actionForm;
        User user = (User) daf.get("user");
        String id = user.getId();
         //只保存上传路径
        FormFile theFile=(FormFile)daf.get("theFile");
        if(!theFile.getFileName().equals(""))...{
            try...{
                InputStream stream=theFile.getInputStream();
                String filePath = this.getServlet().getServletContext().getRealPath("/");
                filePath=filePath+"/images/userphoto/";
                OutputStream bos=new FileOutputStream(filePath+theFile.getFileName());
                int bytesRead=0;
                byte[] buffer=new byte[8192];
                while((bytesRead=stream.read(buffer,0,8192))!=-1)...{
                    bos.write(buffer,0,bytesRead);
                }
                bos.close();
                stream.close();
            }catch(Exception e)...{
                System.err.print(e);
            }
            user.setPhoto("images/userphoto/"+theFile.getFileName());    
        }

            userservice.insertUser(user);
        return actionMapping.findForward("UserList");

    }

 

web page part:

<html:form action="/userAction.do?method=save"
            styleId="userForm" method="post" enctype ="multipart/form-data">
<html:hidden property="user.id" />
<html:file styleClass="BOX" property="theFile" />
</html:form>

config part:

struts-config.xml

<form-bean dynamic="true" name="userForm"
            type="org.apache.struts.action.DynaActionForm">
            <form-property name="user"
                type="com.ttech.user.domain.User" />
                <form-property name="theFile" type="org.apache.struts.upload.FormFile"  />
        </form-bean>