JAVA WEB 上传图片 控制台不报错，但上传图片不成功

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 public class FileUpload extends HttpServlet {



    public void destroy() {
    /*  config = null;*/
        super.destroy();
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html; charset=UTF-8");
        PrintWriter out = response.getWriter();
        System.out.println(request.getContentLength());
        System.out.println(request.getContentType());
        DiskFileItemFactory factory = new DiskFileItemFactory();
        // maximum size that will be stored in memory
        factory.setSizeThreshold(4096);
        factory.setRepository(new File("f:\\temp\\"));

        ServletFileUpload upload = new ServletFileUpload(factory);
        upload.setSizeMax(1000000);
        try {
            List fileItems = upload.parseRequest(request);
            // assume we know there are two files. The first file is a small
            // text file, the second is unknown and is written to a file on
            // the server
            Iterator iter = fileItems.iterator();


            String regExp = ".+\\\\(.+)$";


            String[] errorType = { ".exe", ".com", ".cgi", ".jsp" };
            Pattern p = Pattern.compile(regExp);
            while (iter.hasNext()) {
                FileItem item = (FileItem) iter.next();

                if (!item.isFormField()) {
                    String name = item.getName();
                    long size = item.getSize();
                    if ((name == null || name.equals("")) && size == 0)
                        continue;
                    Matcher m = p.matcher(name);
                    boolean result = m.find();
                    if (result) {
                        for (int temp = 0; temp < errorType.length; temp++) {
                            if (m.group(1).endsWith(errorType[temp])) {
                                throw new IOException(name + ": wrong type");
                            }
                        }
                        try {

                            item.write(new File( "f:\\"+ m.group(1)));

                            out.print(name + "&nbsp;&nbsp;" + size + "<br>");
                        } catch (Exception e) {
                            out.println(e);
                        }

                    } else {
                        throw new IOException("fail to upload");
                    }
                }
            }
        } catch (IOException e) {
            out.println(e);
        } catch (FileUploadException e) {
            out.println(e);
        }

    }



}

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404未找到你的 这个servlet FileUpload
FileUpload.do?
FileUpload.action?

action="../FileUpload"改成action="/FileUpload"

还是一样的问题@庄粟

这和上传附件没有关系，就是你访问的路径地址写错了，或者根本就没有这个地址。
看下web.xml中servlet的url地址配置的是啥，和你访问的能否对应

你form表单的action路径填写错误了- - ，你自己看下吧，不难的事情弄这么久没必要 = = 。