struts下传的跳转有关问题

struts上传的跳转问题

在站内搜索了一下，没有找到类似的问题
1。页面只有上传的的form，包括：file框，text框，上传按钮。有时候能上传，有时不能上传成功，不成功提示http 500 dispatch[/photoManage]...错误，但是同样一个ActionForward为什么有时可以，有时不可以。
2。struts自带的token会不会影响上传呢？
3。是不是代码有问题，各位同胞们帮我看下，代码如下：

java 代码

// 上传一张照片
//class photoManage
public ActionForward sendOnePhoto(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
PhotoManageForm photoForm = (PhotoManageForm) form;
HttpSession session = request.getSession();
session.removeAttribute("photoname");
String ep_no = (String) session.getAttribute("ep_no");
String photo_name = photoForm.getPhoto_name();// 图片别名
if (photo_name == null && "".equals(photo_name)) {
request.setAttribute("photoname", "isEmpty");
return new ActionForward("/searchPhoto.do?flag=manage");
}
FormFile file = photoForm.getFile();
String filename = file.getFileName();// 图片的源名+扩展名
session.setAttribute("photoname", photo_name);
int filesize = file.getFileSize();
String firstname = "";
if (isTokenValid(request, true)) {
try {
PhotoNameSearch namesearch = new PhotoNameSearch();
firstname = namesearch.String2Alpha(photo_name).substring(0, 1);// 取图片别名首拼音
System.out.println("首拼音是:" + firstname);
} catch (Exception ex) {
ex.printStackTrace();
}
// 用作文件名的处理
Date date = new Date();
String datename = date.toString();
datename = datename.replaceAll(" ", "");
datename = datename.replaceAll(":", "");
String sql = "";// SQL语句
if (filename != null && !filename.equals("")) {
int index = filename.lastIndexOf(".");// 得到.的位置
String sn = filename.substring(index, filename.length()); // 求得扩展名
if (!sn.equalsIgnoreCase(".gif")
&& !sn.equalsIgnoreCase(".jpg")
&& !sn.equalsIgnoreCase(".png")) {
return new ActionForward("/searchPhoto.do?selepno=" + ep_no+ "&error=format");
}
if (filesize > 1024 * 1024 * 5) {
return new ActionForward("/searchPhoto.do?selepno=" + ep_no+ "&error=size");
}
Calendar c = Calendar.getInstance();
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String datetime = f.format(c.getTime());
System.out.println("====" + datetime);
String savepath = request.getRealPath("/") + "/upload/photo/"+ datename + sn;// 上传文件写到相应路径目录下
sql = "insert into photo(ep_no,photo_name,photo_route,upload_date,firstname) values('"
+ StrTrans.transGbk(ep_no)
+ "','"
+ StrTrans.transGbk(photo_name)
+ "','"
+ StrTrans.transGbk(datename + sn)
+ "','"
+ datetime
+ "','" + firstname + "')";
CommonDataBean commonDataBean = null;
InputStream in = null;
FileOutputStream out = null;
try {
in = file.getInputStream();
out = new FileOutputStream(savepath);
commonDataBean = new CommonDataBean();
byte[] b = new byte[30000000];
int i = 0;
while ((i = in.read(b)) != -1) {
out.write(b, 0, i);
}
out.close();
in.close();
commonDataBean.executeUpdate(sql);
// 更新上传时间
photoHandle ph = new photoHandle();
ph.updatetime(ep_no);
} catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();
System.out.println("something wrong!");
} finally {
commonDataBean.closeConn();
}
}
resetToken(request);
} else {
saveToken(request);
}
return new ActionForward("/searchPhoto.do?flag=manage");
}

1 楼 esprit 2007-01-15

其他的没仔细看下去

if (photo_name == null && "".equals(photo_name)) {    
                         request.setAttribute("photoname", "isEmpty");    
        return new ActionForward("/searchPhoto.do?flag=manage");    
    }

这段有问题，不是&&，而是||，要仔细啊，呵呵

2 楼 apollo_r 2007-01-15

esprit 写道

其他的没仔细看下去

if (photo_name == null && "".equals(photo_name)) {    
                         request.setAttribute("photoname", "isEmpty");    
        return new ActionForward("/searchPhoto.do?flag=manage");    
    }

这段有问题，不是&&，而是||，要仔细啊，呵呵

哦，谢谢，
但这个地方应该不是上传的问题的症结啊

struts下传的跳转有关问题

相关推荐