Question

我有代码在一个请求中向服务器发送文本和多个图像，我的情况是，我遍历本地数据库以获取数据和多个图像，因此我可以使用addPart(key, textdata);来获取文本数据和{{ 1}}用于图像数据。但问题是，当我在一个请求中有多个图像时，我只能发送其中一个图像。这是我的完整code。主要问题发生在第31行，当我有多个图像时，它只发送其中一个。我将不胜感激任何帮助。谢谢。

Answer 1

我认为问题可能就在这里

 reqEntity.addPart("myFile", yourImage);

在此，您的密钥（myFile）对于所有图像保持不变。因此，当您的图像不止一个时，它会一直覆盖前一个图像。所以我认为，你应该用你的密钥附加索引（从0,1开始，依此类推），例如这样的东西

 reqEntity.addPart("myFile_"+i, yourImage);

并且还将image_count与图像一起发送到服务器，这样，它就会知道您实际发送了多少图像，并且通过在服务器端进行简单的for循环，他们将能够获得所有这些图像。希望这有帮助。

Answer 2

试试这种方式

            String sResponse = "";
            String url = "http://www.api.in/rpcs/uploadfiles/?";
            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            MultipartEntity entity = new MultipartEntity();


            options1.inPreferredConfig = Bitmap.Config.ARGB_8888;

            byte[] data1 = null,data2= null,data3= null,data4= null,data5= null;

            if(PreferenceManager.getDefaultSharedPreferences(getBaseContext()).contains("endum_image_0"))
            {       up_image1 = PreferenceManager.getDefaultSharedPreferences(getBaseContext()).getString("endum_image_0", "");
                    bitmap = BitmapFactory.decodeFile(up_image1, options1);
                    bitmap.compress(CompressFormat.JPEG, 100, bos1);
                    data1 = bos1.toByteArray();
            }
            if(PreferenceManager.getDefaultSharedPreferences(getBaseContext()).contains("endum_image_1"))
            {       up_image2 = PreferenceManager.getDefaultSharedPreferences(getBaseContext()).getString("endum_image_1", "");
                    bitmap = BitmapFactory.decodeFile(up_image2, options1);
                    bitmap.compress(CompressFormat.JPEG, 100, bos2);
                    data2 = bos2.toByteArray();
            }

            if(PreferenceManager.getDefaultSharedPreferences(getBaseContext()).contains("endum_image_2"))
            {       up_image3 = PreferenceManager.getDefaultSharedPreferences(getBaseContext()).getString("endum_image_2", "");
                    bitmap = BitmapFactory.decodeFile(up_image3, options1);
                    bitmap.compress(CompressFormat.JPEG, 100, bos3);
                    data3 = bos3.toByteArray();
            }

            if(PreferenceManager.getDefaultSharedPreferences(getBaseContext()).contains("endum_image_3"))
            {       up_image4 = PreferenceManager.getDefaultSharedPreferences(getBaseContext()).getString("endum_image_3", "");
                    bitmap = BitmapFactory.decodeFile(up_image4, options1);
                    bitmap.compress(CompressFormat.JPEG, 100, bos4);
                    data4 = bos4.toByteArray();
            }

            if(PreferenceManager.getDefaultSharedPreferences(getBaseContext()).contains("endum_image_4"))
            {       up_image5 = PreferenceManager.getDefaultSharedPreferences(getBaseContext()).getString("endum_image_4", "");
                    bitmap = BitmapFactory.decodeFile(up_image5, options1);
                    bitmap.compress(CompressFormat.JPEG, 100, bos5);
                    data5 = bos5.toByteArray();
            }




            entity.addPart("post_id", new StringBody(post_id));
            entity.addPart("user_id", new StringBody(user_id));
            entity.addPart("cat_id", new StringBody(category));

            if(data1!=null){
            entity.addPart("files[]", new ByteArrayBody(data1,"image/jpeg", "u1.jpg"));
            }
            if(data2!=null){
            entity.addPart("files[]", new ByteArrayBody(data2,"image/jpeg", "u2.jpg"));
            }
            if(data3!=null){
            entity.addPart("files[]", new ByteArrayBody(data3,"image/jpeg", "u3.jpg"));
            }
            if(data4!=null){
            entity.addPart("files[]", new ByteArrayBody(data4,"image/jpeg", "u4.jpg"));
            }
            if(data5!=null){
            entity.addPart("files[]", new ByteArrayBody(data5,"image/jpeg", "u5.jpg"));
            }



            httpPost.setEntity(entity);
            HttpResponse response = httpClient.execute(httpPost);

            BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));

           StringBuilder s = new StringBuilder();

            while ((sResponse = reader.readLine()) != null) 
            {
                s = s.append(sResponse);
            }

            if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
            {
                return s.toString();
            }else
            {
                return "{\"status\":\"false\",\"message\":\"Some error occurred\"}";
            }

在android中发送带有图像和文本的多部分表单数据

2 个答案: