Question

使用RESTEasy使用的文件名（Žluťoučkýkůň.txt）中的捷克字符UTF-8发送文件。但在java中我总是成为US-ASCII文件名（当然是错误的）

用于发送文件的HTML：

------WebKitFormBoundaryAyBqNu6jIFHAB660
Content-Disposition: form-data; name="file"; filename="Žluťoučký kůň.txt"
Content-Type: text/plain

真的是发送：

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
        throws IOException, ServletException {
    servletRequest.setCharacterEncoding("UTF-8");

 @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {
        requestContext.setProperty(InputPart.DEFAULT_CONTENT_TYPE_PROPERTY, "*/*; charset=UTF-8");
        requestContext.setProperty(InputPart.DEFAULT_CHARSET_PROPERTY, "UTF-8");

用于获取UTF-8编码的已用过滤器：

 public List<CaseFile> uploadFile(MultipartFormDataInput input, long caseId) {
        MultipartFormDataOutput mdo = new MultipartFormDataOutput();
    Map<String, List<InputPart>> uploadForm = input.getFormDataMap();

    for (List<InputPart> inputParts : uploadForm.values()) {

        for (InputPart inputPart : inputParts) {
            try {

                // Retrieve headers, read the Content-Disposition header to obtain the original name of the file
                MultivaluedMap<String, String> headers = inputPart.getHeaders(); //here are all headers in US-ASCII

读取多部分的Java代码：

                File file = new File(filePath);
                Uri uri = Uri.fromFile(file);
                Intent share = new Intent(Intent.ACTION_SEND);
                share.setType("audio/*");
                share.putExtra(Intent.EXTRA_STREAM, uri);
                startActivity(Intent.createChooser(share,
                        "به اشتراک گذاشتن فایل"));

和标题包含：

形式数据; NAME = “文件”; filename =“?? lu ?? ou ?? k ?? k ????。txt”

Answer 1

我使用野生蝇9和resteasy。上面的代码导致我的类强制转换异常。下面的代码解决了我的问题：

        Field field = inputPart.getClass().getDeclaredField("bodyPart");
        field.setAccessible(true);
        Object bodyPart = field.get(inputPart);
        Method methodBodyPart = bodyPart.getClass().getMethod("getHeader", new Class[]{});
        Iterable iterable = (Iterable)methodBodyPart.invoke(bodyPart, new Class[]{});
        Object[] content = IteratorUtils.toArray(iterable.iterator());
        Method methodContent = content[0].getClass().getMethod("getRaw", new Class[]{});

        String[] contentDisposition = methodContent.invoke(content[0], new Class[]{}).toString().split(";");

        for (String filename : contentDisposition) {
            if ((filename.trim().startsWith("filename"))) {

                String[] name = filename.split("=");

                String finalFileName = name[1].trim().replaceAll("\"", "");
                return finalFileName;
            }
        }

在wildfly 9上编码文件名multipart / form-data

1 个答案: