Android使用服务将文件上传到带有进度条的服务器 [英] Android upload file to server with progressbar using service
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问题描述
我已经使用asynctask使用进度条实现了上传文件，但是大文件或上传多个文件使我的活动挂起，我现在想做同样的事情，但要使用服务而不是使用asynctask.这是我的代码.
I have already implement upload file with progress bar using asynctask but large files or uploading multiple files hang up my activity now i want to do the same but using service and not by using asynctask. Here is my code..
private class UploadFileToServer extends AsyncTask<Void, Integer, String> {
@Override
protected void onPreExecute() {
// setting progress bar to zero
mBuilder.setProgress(100, 0, false);
mNotifyManager.notify(0, mBuilder.build());
super.onPreExecute();
}
@Override
protected void onProgressUpdate(Integer... progress) {
mBuilder.setProgress(100,
Integer.parseInt(String.valueOf(progress[0])), false);
mNotifyManager.notify(0, mBuilder.build());
}
@Override
protected String doInBackground(Void... params) {
return uploadFile();
}
private String uploadFile() {
String responseString = null;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(***);
try {
AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
new AndroidMultiPartEntity.ProgressListener() {
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
});
File sourceFile = new File(orignal1);
entity.addPart("image", new FileBody(sourceFile));
totalSize = entity.getContentLength();
httppost.setEntity(entity);
// Making server call
HttpResponse response = httpclient.execute(httppost);
HttpEntity r_entity = response.getEntity();
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 200) {
// Server response
responseString = EntityUtils.toString(r_entity);
} else {
responseString = "Error occurred! Http Status Code: "
+ statusCode;
}
} catch (ClientProtocolException e) {
responseString = e.toString();
} catch (IOException e) {
responseString = e.toString();
}
return responseString;
}
@Override
protected void onPostExecute(String result) {
mBuilder.setContentText("Upload complete").setProgress(0, 0,false);
mNotifyManager.notify(6532365, mBuilder.build());
mNotifyManager.cancel(6532365);
super.onPostExecute(result);
}
}
推荐答案
嘿，我终于做到了，这里是代码
Hey i finally did it here is the code
public class UploadFile extends Service {
NotificationManager mNotifyManager;
NotificationCompat.Builder mBuilder;
private static final String TAG = "HelloService";
private boolean isRunning = false;
@Override
public void onCreate() {
Log.i(TAG, "Service onCreate");
isRunning = true;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
mNotifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mBuilder = new NotificationCompat.Builder(UploadFile.this);
mBuilder.setContentTitle("File uploaded").setSmallIcon(
R.drawable.myicons);
UpadtePost();
return Service.START_STICKY;
}
private void UpadtePost() {
new UploadFileToServer().execute();
}
private class UploadFileToServer extends AsyncTask<Void, Integer, String> {
protected void onPreExecute() {
// setting progress bar to zero
mBuilder.setProgress(100, 0, false);
mNotifyManager.notify(0, mBuilder.build());
super.onPreExecute();
}
@Override
protected void onProgressUpdate(Integer... progress) {
mBuilder.setProgress(100,
Integer.parseInt(String.valueOf(progress[0])), false);
mNotifyManager.notify(0, mBuilder.build());
}
@Override
protected String doInBackground(Void... params) {
return uploadFile();
}
private String uploadFile() {
String responseString = null;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(****);
try {
AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
new AndroidMultiPartEntity.ProgressListener() {
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
});
File sourceFile = new File(orignal1);
entity.addPart("image", new FileBody(sourceFile));
totalSize = entity.getContentLength();
httppost.setEntity(entity);
// Making server call
HttpResponse response = httpclient.execute(httppost);
HttpEntity r_entity = response.getEntity();
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 200) {
// Server response
responseString = EntityUtils.toString(r_entity);
} else {
responseString = "Error occurred! Http Status Code: "
+ statusCode;
}
} catch (ClientProtocolException e) {
responseString = e.toString();
} catch (IOException e) {
responseString = e.toString();
}
return responseString;
}
@Override
protected void onPostExecute(String result) {
session.showNot(result);
mBuilder.setContentText("Upload complete").setProgress(0, 0,false);
mNotifyManager.notify(6532365, mBuilder.build());
mNotifyManager.cancel(6532365);
super.onPostExecute(result);
}
}
@Override
public IBinder onBind(Intent arg0) {
Log.i(TAG, "Service onBind");
return null;
}
@Override
public void onDestroy() {
isRunning = false;
Log.i(TAG, "Service onDestroy");
}
}
AndroidMultiPartEntity .java
AndroidMultiPartEntity .java
public class AndroidMultiPartEntity extends MultipartEntity
{
private final ProgressListener listener;
public AndroidMultiPartEntity(final ProgressListener listener) {
super();
this.listener = listener;
}
public AndroidMultiPartEntity(final HttpMultipartMode mode,
final ProgressListener listener) {
super(mode);
this.listener = listener;
}
public AndroidMultiPartEntity(HttpMultipartMode mode, final String boundary,
final Charset charset, final ProgressListener listener) {
super(mode, boundary, charset);
this.listener = listener;
}
@Override
public void writeTo(final OutputStream outstream) throws IOException {
super.writeTo(new CountingOutputStream(outstream, this.listener));
}
public static interface ProgressListener {
void transferred(long num);
}
public static class CountingOutputStream extends FilterOutputStream {
private final ProgressListener listener;
private long transferred;
public CountingOutputStream(final OutputStream out,
final ProgressListener listener) {
super(out);
this.listener = listener;
this.transferred = 0;
}
public void write(byte[] b, int off, int len) throws IOException {
out.write(b, off, len);
this.transferred += len;
this.listener.transferred(this.transferred);
}
public void write(int b) throws IOException {
out.write(b);
this.transferred++;
this.listener.transferred(this.transferred);
}
}
这篇关于Android使用服务将文件上传到带有进度条的服务器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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