如何使用Android将.pdf .doc .txt文件上传到服务器（mysql数据库）

Question

I'm facing some difficulties while uploading files to server, I need to know full code of file uploading with namevaluepair. Hear is my android code, I'm getting only my file path, how to upload it to server with reference as "nameValuePairs.add(new BasicNameValuePair("attachment", selectedFilePath));"

       String selectedFilePath="downloads/harry.txt"  //(My file Path)



        InputStream is = null;
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
        nameValuePairs.add(new BasicNameValuePair("postiontitle", positiontitle));
        nameValuePairs.add(new BasicNameValuePair("description", description));
        nameValuePairs.add(new BasicNameValuePair("jobtype", jobtype));
        nameValuePairs.add(new BasicNameValuePair("visatype", visatype));



  if (selectedFilePath != null)
        {
            nameValuePairs.add(new BasicNameValuePair("attachment", selectedFilePath));


        }


        try {


            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new                                  HttpPost("http://10.0.3.2/dfsdsd/postjob");
            // HttpPost httpPost = new 
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();
            int code = response.getStatusLine().getStatusCode();
            String rescode = String.valueOf(code);




            //result=is.toString();
            return rescode;
        } catch (MalformedURLException e) {
            return "No Internet";
        } catch (IOException e) {
            return "No Internet";
        }
    }

Answer 1

If you want simple and fast then i will suggest you ION Library

Post multipart/form-data and read JSON with an upload progress bar With ION :

Ion.with(getContext())
.load("https://koush.clockworkmod.com/test/echo")
.uploadProgressBar(uploadProgressBar)
.setMultipartParameter("goop", "noop")
.setMultipartFile("archive", "application/zip", new File("/sdcard/filename.zip"))
.asJsonObject()
.setCallback(...)

Answer 2

Use Retrofil or Okhttp.

public static final String MULTIPART_FORM_DATA = "multipart/form-data";

 @NonNull
 private RequestBody createPartFromString(String descriptionString) {  
   return RequestBody.create(
        MediaType.parse(MULTIPART_FORM_DATA), descriptionString);
 }

 @NonNull
 private MultipartBody.Part prepareFilePart(String partName, Uri fileUri) {  
// https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/afilechooser/utils/FileUtils.java
// use the FileUtils to get the actual file by uri
File file = FileUtils.getFile(this, fileUri);

// create RequestBody instance from file
RequestBody requestFile =
    RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), file);

// MultipartBody.Part is used to send also the actual file name
return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);
}