Question

我的Android代码如下，我想将图像文件从Android App发送到我的restful webserivce，Android App和WebService的代码，下面给出了Error

@Override
    protected Void doInBackground(Void... params) {
        String iFileName = "abc.jpg";
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        String Tag = "fSnd";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024;

        try {
            //  Log.e(Tag,"Starting Http File Sending to URL");

            // Open a HTTP connection to the URL



            HttpURLConnection conn = (HttpURLConnection) connectURL.openConnection();

            // Allow Inputs
            conn.setDoInput(true);

            // Allow Outputs
            conn.setDoOutput(true);

            // Don't use a cached copy.
            conn.setUseCaches(false);

            // Use a post method.
            conn.setRequestMethod("POST");

            conn.setRequestProperty("Connection", "Keep-Alive");

           conn.setRequestProperty("Content-Type", "multipart/form-    data;boundary=" + boundary);

            conn.setRequestProperty("file", iFileName);

            DataOutputStream dos = new DataOutputStream(conn.getOutputStream());

            dos.writeBytes(twoHyphens + boundary + lineEnd);

            dos.writeBytes("Content-Disposition: form-data; name=\"file\";file=\""
                    + URLEncoder.encode(iFileName, "UTF-8") +"\""+ lineEnd);

            dos.writeBytes(lineEnd);

            // create a buffer of maximum size
            bytesAvailable = fileInputStream.available();

            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            buffer = new byte[bufferSize];

            // read file and write it into form...
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);

            while (bytesRead > 0) {
                dos.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }
            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

            // close streams
            fileInputStream.close();

            dos.flush();

            //      Log.e(Tag,"File Sent, Response: "+String.valueOf(conn.getResponseCode()));
            System.out.println("File Sent, Response: "+String.valueOf(conn.getResponseCode()));

            InputStream is = conn.getInputStream();

            // retrieve the response from server
            int ch;

            StringBuffer b = new StringBuffer();
            while ((ch = is.read()) != -1) {
                b.append((char) ch);
            }
            String s = b.toString();
            //  Log.i("Response",s);
            System.out.println("Response : "+s);

            dos.close();
        } catch (MalformedURLException ex) {
            // Log.e(Tag, "URL error: " + ex.getMessage(), ex);
            System.out.println("URL error: " + ex.getMessage());
        } catch (IOException ioe) {
            // Log.e(Tag, "IO error: " + ioe.getMessage(), ioe);
            System.out.println("IO error: " + ioe.getMessage());
        }
        return null;
    }

在RestFul webservice一侧的

我正在使用以下代码...

@POST
    @Path("/upload")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response uploadFile(
        @FormDataParam("file") InputStream uploadedInputStream,
        @FormDataParam("file") FormDataContentDisposition fileDetail) {
        System.out.println("File download starts now");
        String uploadedFileLocation = "d://uploaded/" + fileDetail.getFileName();

        System.out.println("Testing for file download");
        // save it
        writeToFile(uploadedInputStream, uploadedFileLocation);

        String output = "File uploaded to : " + uploadedFileLocation;

        return Response.status(200).entity(output).build();

    }

but i am getting following error on webservice side...
Apr 13, 2017 3:29:11 PM com.sun.jersey.spi.container.ContainerRequest getEntity
SEVERE: A message body reader for Java class com.sun.jersey.core.header.FormDataContentDisposition, and Java type class com.sun.jersey.core.header.FormDataContentDisposition, and MIME media type multipart/form-data was not found.
The registered message body readers compatible with the MIME media type are:
*/* ->
  com.sun.jersey.core.impl.provider.entity.FormProvider
  com.sun.jersey.core.impl.provider.entity.StringProvider
  com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
  com.sun.jersey.core.impl.provider.entity.FileProvider
  com.sun.jersey.core.impl.provider.entity.InputStreamProvider
  com.sun.jersey.core.impl.provider.entity.DataSourceProvider
  com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
  com.sun.jersey.core.impl.provider.entity.ReaderProvider
  com.sun.jersey.core.impl.provider.entity.DocumentProvider
  com.sun.jersey.core.impl.provider.entity.SourceProvider$StreamSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$SAXSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$DOMSourceReader
  com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLRootObjectProvider$General
  com.sun.jersey.core.impl.provider.entity.EntityHolderReader
  com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JacksonProviderProxy

Kindly check my code...and guide me how to resolve the issue...

将图像从Android发送到RestFul webservice

0 个答案: