如何使用Android將.pdf .doc .txt文件上傳到服務器（mysql數據庫）

Question

將文件上傳到服務器時遇到一些困難，我需要知道使用namevaluepair上傳文件的完整代碼。 聽到的是我的android代碼，我只有我的文件路徑，如何將其上傳到服務器，引用為“ 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

如果您想簡單快速地我會建議您ION Library

發布多部分/表單數據並使用ION使用上傳進度欄讀取JSON：

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

使用Retrofil或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);
}