Android-Django图片上传

Question

我试图上传图像与android作为前端和django作为后端。

该模型：

    class Photo(models.Model):
        title = models.CharField(max_length=255,blank=True)
        photo = models.FileField(upload_to='photos')
        description = models.TextField(blank=True)
        uploaded = models.DateTimeField(auto_now_add=True)
        modified = models.DateTimeField(auto_now=True)

        class Meta:
            db_table = 'media_photos'

        def __unicode__(self):
            return '%s' % self.title

url url的视图（r'^ photos / upload / $'，'upload_photo'）：

def upload_photo(request):
form=PhotoForm(request.POST,request.FILES)
if request.method=='POST':
    if form.is_valid():
        image = request.FILES['photo']
        title1 =''
        new_image = Photo(title=title1,photo=image,description='')
        new_image.save()
        response_data=[{"success": "1"}]
        return HttpResponse(simplejson.dumps(response_data), mimetype='application/json')

现在我想从android访问这里的视图。所以现在我上传图像的android端代码是：

     public void doFileUpload(String path){
        HttpURLConnection conn = null;
        DataOutputStream dos = null;
        DataInputStream inStream = null;
        String lineEnd = "
";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1*1024*1024;
        String urlString = "http://";   // server ip
        try
        {
         //------------------ CLIENT REQUEST
        FileInputStream fileInputStream = new FileInputStream(new File(path) );
         // open a URL connection to the Servlet
         URL url = new URL(urlString);
         // Open a HTTP connection to the URL
         conn = (HttpURLConnection) url.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="+"    ");
         dos = new DataOutputStream( conn.getOutputStream() );
         dos.writeBytes(lineEnd);
         dos.writeBytes("Content-Disposition: form-data; name="uploadedfile";filename="" + path + """ + 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);
         }

         // send multipart form data necesssary after file data...
         dos.writeBytes(lineEnd);
         dos.writeBytes(lineEnd);

         // close streams
         Log.e("Debug","File is written");
         fileInputStream.close();
         dos.flush();
         dos.close();
        }
        catch (MalformedURLException ex)
        {
             Log.e("Debug", "error: " + ex.getMessage(), ex);
        }
        catch (IOException ioe)
        {
             Log.e("Debug", "error: " + ioe.getMessage(), ioe);
        }

        //------------------ read the SERVER RESPONSE
        try {
              inStream = new DataInputStream ( conn.getInputStream() );
              String str;
              while (( str = inStream.readLine()) != null)
              {
                   Log.e("Debug","Server Response "+str);
              }
              inStream.close();
        }
        catch (IOException ioex){
             Log.e("Debug", "error: " + ioex.getMessage(), ioex);
        }
      }
}

但它给了我一个错误：

E/Debug(590): error: java.net.URISyntaxException: Authority expected at index 7: http://

Answer 1

另一答案