Android-图像上载到REST服务器时出现问题：不支持图像格式

Question

我正在尝试从我的Android应用程序上传一个图像到rest服务器。图片确实上传了，但在服务器上，照片查看器或其他图片应用程序无法打开上传的图片。我在服务器上使用netbeans 7中的glassfish 3。我不使用maven，我更喜欢非Moven解决方案。

下面是我用来在一个运行程序中从android上传图片的代码

@Override
        public void run() {
            // TODO Auto-generated method stub
try{

                HttpClient httpClient = new DefaultHttpClient();
                HttpContext httpContext = new BasicHttpContext();
                Bitmap original = BitmapFactory.decodeFile(path);
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                original.compress(Bitmap.CompressFormat.JPEG, 77, out);
                byte[] data = out.toByteArray();

                ByteArrayBody bab = new ByteArrayBody(data,"image.JPG");

                MultipartEntityBuilder mpeb = MultipartEntityBuilder.create();
                mpeb.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
                mpeb.addBinaryBody("file", data, ContentType.create("image/jpg"), "image.jpeg");
                HttpPost request = new HttpPost(url);
                request.setEntity(mpeb.build());
                request.addHeader("Content-type","multipart/form-data");
                HttpResponse response = httpClient.execute(request,httpContext);
                HttpEntity entity = response.getEntity();
                if(response.getStatusLine().getStatusCode()== 201){
                    Log.w("ced", "pic success");
                }else{
                    Log.w("ced", "pic failed ,code "+response.getStatusLine().getStatusCode());
                }
            }catch(Exception e){
                Log.e("error",e.getMessage());
            }
        }

@POST
@Path("/imgs/")
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response saveImage(@FormDataParam("file") InputStream is
                          ){
    try {

        FileOutputStream os = new FileOutputStream(new     File("C:/Users/files/Downloads/"+"img.jpg"));

        Utils.copyFileStream(is, os);

        os.flush();
        os.close();
        return Response.status(201).entity("reached").build();
    } catch (FileNotFoundException ex) {
        Logger.getLogger(RestW.class.getName()).log(Level.SEVERE,     null, ex);
    }catch(IOException e){
         Logger.getLogger(RestW.class.getName()).log(Level.SEVERE, null, e);
    }
 return Response.status(500).entity("error").build();

}

我尝试在AddBinaryBody中将mime类型更改为multipart/form-data和multipart/*。尽管如此，图像还是无法打开。

当我添加另一个@FormDataParam()（用于内容处理）时，它显示以下错误：

Severe：缺少方法public javax.ws.rs.core.response的依赖关系Severe：method,public javax.ws.rs.core.response com.proj.test.restw.SaveImage（java.io.InputStream,org.glassfish.jersey.media.multipart.FormDataContentDisposition）,用资源的POST注释,类com.proj.test.restw,不能被识别为有效的资源方法。

当我删除内容配置参数，它工作良好，但图像不能打开。

提前致谢

Answer 1

这是对我起作用的代码

private void sendPics(ArrayList<String> paths){

        for(int i = 0;i<paths.size();i++){
            String p = paths.get(i);

            try{
            Bitmap original = BitmapFactory.decodeFile(p);
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            original.compress(Bitmap.CompressFormat.JPEG, 100, out);
            byte[] data = out.toByteArray();

            HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
            connection.setReadTimeout(10000);
            connection.setConnectTimeout(15000);
            connection.setRequestMethod("POST");
            connection.setUseCaches(false);
            connection.setDoInput(true);
            connection.setDoOutput(true);

            connection.setRequestProperty("Connection", "Keep-Alive");
            connection.setRequestProperty("Cache-Control", "no-cache");
            connection.setRequestProperty("Content-Type", "multipart/form-data");

            DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
            dataOutputStream.write(data);
            dataOutputStream.flush();
            dataOutputStream.close();
            int c = connection.getResponseCode();

            connection.disconnect();

        }catch(Exception e){
            Log.e("cedError",e.getMessage());
        }
        }   

    }
}