Question

当我上传多个图片时，我的代码正在为一张图片工作，它向我显示错误。

有人可以帮我解决这个问题吗？

使用下面的代码，我可以上传单张图片，但我想上传多张图片，所以请帮助我如何上传图片。感谢

这是我的代码

  String image_path=imageUrl1;
      GetData(myFiles);         

}


        });

}


public void GetData(String myFiles)
{

        String image_retrive_url="http://tradewale.com/open/tradedata.php?submitType=PostAd";

        pDialog = new ProgressDialog(PostAddActivity.this);
        pDialog.setMessage(" Sending...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();




    Bitmap bitmap = BitmapFactory.decodeFile(myFiles);
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 30, stream);
    byte [] byte_arr = stream.toByteArray();
    String image_str = Base64.encodeBytes(byte_arr);
    final ArrayList<NameValuePair> nameValuePairs = new  ArrayList<NameValuePair>();

    String Title = title.getText().toString();
    String Description = description.getText().toString().trim();
    String PhoneNumber = phonenumber.getText().toString();
    String Email = email.getText().toString();
    String Price = price.getText().toString();


    nameValuePairs.add(new BasicNameValuePair("image",image_str));

    nameValuePairs.add(new BasicNameValuePair("photo_url", image_retrive_url));



    Thread t = new Thread(new Runnable() 
    {

   @Override
   public void run() {
         try{
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost("http://tradewale.com/open/tradedata.php?submitType=PostAd");
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                final String the_string_response = convertResponseToString(response);


            }
         catch(final Exception e)
            {
                 runOnUiThread(new Runnable() 
                 {

                   @Override
                   public void run() 
                   {
                       Toast.makeText(PostAddActivity.this, "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();                              
                   }
               });
                  System.out.println("Error in http connection "+e.toString());
            }  
   }
       });
   t.start();
    }

Answer 1

在webservice中发送更多图像。您还必须更改webservice。在服务部分添加one more参数。这样你就可以一次发送多张图像。

并获取base64

等第二张图片的e.g. img_str2字符串

喜欢：

String image_str = Base64.encodeBytes(byte_arr);
String image_str2 = Base64.encodeBytes(byte_arr2);

并在服务中命名新参数，例如image2

 nameValuePairs.add(new BasicNameValuePair("image",image_str));
 nameValuePairs.add(new BasicNameValuePair("image2",image_str2));

此处image和image2为2 diff。图像参数。这些参数名称也必须是define in your service side code ..这样服务代码可以保存您的iamges。

如何将多个图像发送到服务器

1 个答案: