android - 发送多个图像到服务器 : One image sending thrice to server issue

Question

• 我必须在服务器端发送三张不同的图片。现在一张图片上传了三次，但我选择了三张不同的图片。

• 因为我给定了 count=0。然后它拍摄第一张图片并发送第一张图片三次发送到服务器。

• 如果我给 count=1 那么它需要三次发送第二张图片一次发送到服务器。

• 我不知道如何一次给出 0,1 和 2 的计数以发送三张图片。这样我就可以一次发送三张图片以将其发送到服务器。

日志:

02-11 04:32:20.565: E/params[0](16395): 0
02-11 04:32:20.582: E/ParamsArray(16395): [0, pk0.jpg]

MainActivity.java:

  public class MainActivity extends Activity {

    private Button upload, pick;
    MultipartEntity entity;
    GridView gv;
    int count = 0;
    public ArrayList<String> map = new ArrayList<String>();
    Bundle b;
    TextView noImage;


   @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

     upload.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                new ImageUploadTask().execute(count + "", "pk" + count + ".jpg");

                /*Log.e("url", url);
                new UserProfileUpdateAsynTask().execute(url);*/
            }
        });
}

class ImageUploadTask extends AsyncTask<String, Void, String> {


        ProgressDialog dialog;
        String url = "";

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            dialog = new ProgressDialog(MainActivity.this);
            dialog.setMessage("Loading...");
            dialog.setCancelable(false);
            dialog.show();
        }

        @Override
        protected String doInBackground(String... params) {

            HttpEntity resEntity;  

            int i = Integer.parseInt(params[0]);
            Log.e("params[0]",""+i);

            Bitmap bitmap = decodeFile(map.get(i));
            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            entity = new MultipartEntity();

            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            bitmap.compress(CompressFormat.JPEG, 100, bos);
            byte[] data = bos.toByteArray();

            try {

                Log.e("ParamsArray",""+Arrays.toString(params));



            entity.addPart("filename[0]", new ByteArrayBody(data,"image/jpeg", params[1]));
            entity.addPart("filename[1]", new ByteArrayBody(data,"image/jpeg", params[1]));
            entity.addPart("filename[2]", new ByteArrayBody(data,"image/jpeg", params[1]));


                httpPost.setEntity(entity);
                HttpResponse response = httpClient.execute(httpPost);
                resEntity = response.getEntity();
                String entityContentAsString = EntityUtils.toString(resEntity);

                return entityContentAsString;

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            return null;

        }

        @Override
        protected void onPostExecute(String result) {
            super.onPostExecute(result);

            if (result != null) {
                dialog.dismiss();
                Log.e("Update_profile", result);

            }
        }

    }



}

任何人都可以帮助我。谢谢。

Answer 1

entity.addPart("filename[0]", new ByteArrayBody(data,"image/jpeg", params[1]));
entity.addPart("filename[1]", new ByteArrayBody(data,"image/jpeg", params[1]));
entity.addPart("filename[2]", new ByteArrayBody(data,"image/jpeg", params[1]));

您发送同一个文件三次，这就是问题所在。

---

最好将图片路径放在 SharedPrefrence 中.

    byte[] data1 = null,data2= null,data3= 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();
    }

如果字节数组有数据则只发送给服务器

    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"));
    }

---

在服务器上发送数据:

    HttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost(url);
    MultipartEntity entity = new MultipartEntity();
    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\"}";
    }