我这样做是为了上传单张图片。但我想在同一个键上上传多个图像，如5个图像。有人告诉我如何使用multipart
来做到这一点Json答案 0 :(得分：1)
试试此代码，
HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 60000); // 1 min
HttpConnectionParams.setSoTimeout(httpParams,60000); // 1 min
HttpClient client = new DefaultHttpClient(httpParams);
//
// HttpPost post = new
//HttpPost("ex.php/my_api/my_service_api_test/event_user_data");
HttpPost post = new HttpPost(AppConstants.URL_BASE + "event_user_data");
MultipartEntity entity = new MyMultipartEntity(new ProgressListener() {
@Override
public void transferred(long num) {
// TODO Auto-generated method stub
publishProgress((int) ((num / (float) totalSize) *100));
}
});
boolean datacomplete=false;
try {
JSONArray array = new JSONArray();
JSONObject text = new JSONObject();
text.put("event_main_id",Session.GetInstance(getApplicationContext()).GetEventId());
text.put("event_title", Session.GetInstance(getApplicationContext()).getUserDetail().getUserfname());
text.put("event_detail", "");
text.put("event_privacy", "public");
FileBody fileBody;
if (posttype.equals("image")) {
text.put("post_type", posttype);
File myFile2 = new File(postpath);
fileBody = new FileBody(myFile2, "image/jpeg");
entity.addPart("image", fileBody);
// }
} else {
text.put("post_type", posttype);
File myFile = new File(postpath);
fileBody = new FileBody(myFile, "video/mp4");
entity.addPart("video", fileBody);
File myFile2 = new File(postpaththumb);
FileBody fileBody2 = new FileBody(myFile2, "image/jpeg");
entity.addPart("video_thumb", fileBody2);
}
text.put("post_userid", Session.GetInstance(getApplicationContext()).getUserDetail().getUserid());
text.put("post_username", Session.GetInstance(getApplicationContext()).getUserDetail().getUserfname());
text.put("post_comment", postcomment);
text.put("post_privacy", postprivacy);
text.put("post_tagging", posttages);
text.put("post_mood", postmood);
// if (mGPS.canGetLocation) {
text.put("post_lat", LocationService.getLat());
text.put("post_long", LocationService.getLong());
text.put("post_location", LocationService.GetMysubAddress(MainActivity.this));
// } else {
// text.put("post_lat", "22.25");
// text.put("post_long", "75.25");
// text.put("post_location", "NA");
// }
array.put(text);
entity.addPart("data", new StringBody(array.toString()));
datacomplete=true;
} catch (Exception exception) {
return null;
}
// List<NameValuePair> pairs = new ArrayList<NameValuePair>();
if(datacomplete)
{
totalSize = entity.getContentLength();
post.addHeader("user_id", Session.GetInstance(MainActivity.this).getUserDetail().getUserid());
post.addHeader("device_id", MainActivity.GetDeviceId(MainActivity.this).toString());
post.addHeader("device_type", "android");
post.setEntity(entity); // as UTF-8
try {
HttpResponse response = client.execute(post);
HttpEntity httpEntity = response.getEntity();
is = httpEntity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
//System.out.println(sb.toString());
// try parse the string to a JSON object
try {
jObj = new JSONObject(sb.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
return jObj;
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
答案 1 :(得分：0)
尝试以下代码
protected WebserviceResultData doInBackground(Void... params) {
Object resultObject = null;
WebserviceResultData webserviceResultData = null;
// ******************************************************************
try {
// Create the POST object
HttpPost post = new HttpPost(webServiceData.serverUrl);
// ********************************************************************************************************************
// Create the multipart entity object and add a progress listener
// this is a our extended class so we can know the bytes that have
// been transfered
MultipartEntity entity = new MyMultipartEntity(new ProgressListener() {
@Override
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
Log.d("DEBUG", num + " - " + totalSize);
}
});
// Add the file to the content's body
ContentBody cbFile = null;
for (int i = 0; i < strImagePath.size(); i++) {
File file = new File(strImagePath.get(i));
cbFile = new FileBody(file, "image/jpeg");
entity.addPart("source", cbFile);
}
// entity.addPart("source", cbFile);
// After adding everything we get the content's lenght
totalSize = entity.getContentLength();
// We add the entity to the post request
post.setEntity(entity);
// Execute post request
HttpResponse response = client.execute(post);
// int statusCode = response.getStatusLine().getStatusCode();
String resObj = EntityUtils.toString(response.getEntity());
if (resObj != null) {
Logger.logger("===============================================");
Logger.logger("Responce---------", "" + resObj.toString());
Logger.logger("===============================================");
resultObject = getParsedResponse(resObj, webServiceData.parsedClass);
webserviceResultData = new WebserviceResultData(resultObject, webServiceData);
}
return webserviceResultData;
} catch (ClientProtocolException e) {
// Any error related to the Http Protocol (e.g. malformed url)
e.printStackTrace();
} catch (IOException e) {
// Any IO error (e.g. File not found)
e.printStackTrace();
}
return null;
// ******************************************************************
}