我在服务中使用AsyncTask，以便将数据从本地数据库上传到服务器。
如果我从Activity启动服务并且应用程序仍处于前台，则所有工作都完美无缺。但是，如果我将我的应用程序发送到后台，则Asynctask不会被执行，因此不会上传任何数据。
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpVersion;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.params.HttpParams;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;
import android.util.Log;
public class UploadDataService extends Service {
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
final Intent dataIntent = intent;
ArrayList<String>CASE_ID_ARRAY = dataIntent.getStringArrayListExtra("CASE_ID_ARRAY");
ArrayList<String>CPV_NUMBER_ARRAY = dataIntent.getStringArrayListExtra("CPV_NUMBER_ARRAY");
ArrayList<String>CUSTOMER_NAME_ARRAY = dataIntent.getStringArrayListExtra("CUSTOMER_NAME_ARRAY");
ArrayList<String>BILLING_LANDMARK_ARRAY = dataIntent.getStringArrayListExtra("BILLING_LANDMARK_ARRAY");
ArrayList<String>BILLING_LANDLINE_ARRAY = dataIntent.getStringArrayListExtra("BILLING_LANDLINE_ARRAY");
ArrayList<String>EMAIL_ID_ARRAY = dataIntent.getStringArrayListExtra("EMAIL_ID_ARRAY");
ArrayList<String>BILLING_ADDRESS_CHANGE_ARRAY = dataIntent.getStringArrayListExtra("BILLING_ADDRESS_CHANGE_ARRAY");
ArrayList<String>COMPANY_LANDMARK_ARRAY = dataIntent.getStringArrayListExtra("COMPANY_LANDMARK_ARRAY");
ArrayList<String>COMPANY_LANDLINE_ARRAY = dataIntent.getStringArrayListExtra("COMPANY_LANDLINE_ARRAY");
ArrayList<String>COMPANY_ADDRESS_CHANGE_ARRAY = dataIntent.getStringArrayListExtra("COMPANY_ADDRESS_CHANGE_ARRAY");
ArrayList<String>ADDRESS_TYPE_ARRAY = dataIntent.getStringArrayListExtra("ADDRESS_TYPE_ARRAY");
ArrayList<String>ADDRESS_VERIFIED_ARRAY = dataIntent.getStringArrayListExtra("ADDRESS_VERIFIED_ARRAY");
ArrayList<String>SUB_IDENTITY_CONFIRM_ARRAY = dataIntent.getStringArrayListExtra("SUB_IDENTITY_CONFIRM_ARRAY");
ArrayList<String>VISIT_MONTH_ARRAY = dataIntent.getStringArrayListExtra("VISIT_MONTH_ARRAY");
ArrayList<String>VISIT_DATE_ARRAY = dataIntent.getStringArrayListExtra("VISIT_DATE_ARRAY");
ArrayList<String>VISIT_YEAR_ARRAY = dataIntent.getStringArrayListExtra("VISIT_YEAR_ARRAY");
ArrayList<String>VISIT_TIME_HOUR_ARRAY = dataIntent.getStringArrayListExtra("VISIT_TIME_HOUR_ARRAY");
ArrayList<String>VISIT_TIME_MINUTE_ARRAY = dataIntent.getStringArrayListExtra("VISIT_TIME_MINUTE_ARRAY");
ArrayList<String>PERSON_CONTACT_ARRAY = dataIntent.getStringArrayListExtra("PERSON_CONTACT_ARRAY");
ArrayList<String>RELATION_PERSON_ARRAY = dataIntent.getStringArrayListExtra("RELATION_PERSON_ARRAY");
ArrayList<String>REMARKS_ARRAY = dataIntent.getStringArrayListExtra("REMARKS_ARRAY");
ArrayList<String>SIM_RECEIVED_ARRAY = dataIntent.getStringArrayListExtra("SIM_RECEIVED_ARRAY");
ArrayList<String>NEIGHBOUR_CHECKED_ARRAY = dataIntent.getStringArrayListExtra("NEIGHBOUR_CHECKED_ARRAY");
ArrayList<String>HOUSE_AREA_ARRAY = dataIntent.getStringArrayListExtra("HOUSE_AREA_ARRAY");
ArrayList<String>HOUSE_LOCALITY_ARRAY = dataIntent.getStringArrayListExtra("HOUSE_LOCALITY_ARRAY");
ArrayList<String>HOUSE_OWNERSHIP_ARRAY = dataIntent.getStringArrayListExtra("HOUSE_OWNERSHIP_ARRAY");
ArrayList<String>RESIDENCE_TYPE_ARRAY = dataIntent.getStringArrayListExtra("RESIDENCE_TYPE_ARRAY");
ArrayList<String>HOUSE_APPROACH_ARRAY = dataIntent.getStringArrayListExtra("HOUSE_APPROACH_ARRAY");
ArrayList<String>HOUSE_LOCATION_ARRAY = dataIntent.getStringArrayListExtra("HOUSE_LOCATION_ARRAY");
ArrayList<String>EXTERIOR_CONDITION_ARRAY = dataIntent.getStringArrayListExtra("EXTERIOR_CONDITION_ARRAY");
ArrayList<String>INTERIOR_CONDITION_ARRAY = dataIntent.getStringArrayListExtra("INTERIOR_CONDITION_ARRAY");
ArrayList<String>THIRD_PARTY_CONTACT_ARRAY = dataIntent.getStringArrayListExtra("THIRD_PARTY_CONTACT_ARRAY");
ArrayList<String>ASSETS_TV_ARRAY = dataIntent.getStringArrayListExtra("ASSETS_TV_ARRAY");
ArrayList<String>ASSETS_AC_ARRAY = dataIntent.getStringArrayListExtra("ASSETS_AC_ARRAY");
ArrayList<String>ASSETS_FRIDGE_ARRAY = dataIntent.getStringArrayListExtra("ASSETS_FRIDGE_ARRAY");
ArrayList<String>ASSETS_MUSIC_ARRAY = dataIntent.getStringArrayListExtra("ASSETS_MUSIC_ARRAY");
ArrayList<String>ASSETS_NA_ARRAY = dataIntent.getStringArrayListExtra("ASSETS_NA_ARRAY");
ArrayList<String>NEGATIVE_AREA_ARRAY = dataIntent.getStringArrayListExtra("NEGATIVE_AREA_ARRAY");
ArrayList<String>FAMILY_STRUCTURE_ARRAY = dataIntent.getStringArrayListExtra("FAMILY_STRUCTURE_ARRAY");
ArrayList<String>FAMILY_STATUS_ARRAY = dataIntent.getStringArrayListExtra("FAMILY_STATUS_ARRAY");
ArrayList<String>ORGANISATION_ARRAY = dataIntent.getStringArrayListExtra("ORGANISATION_ARRAY");
ArrayList<String>PROFESSION_ARRAY = dataIntent.getStringArrayListExtra("PROFESSION_ARRAY");
ArrayList<String>SERVICE_YEAR_ARRAY = dataIntent.getStringArrayListExtra("SERVICE_YEAR_ARRAY");
ArrayList<String>VEHICLE_ARRAY = dataIntent.getStringArrayListExtra("VEHICLE_ARRAY");
ArrayList<String>EDUCATION_ARRAY = dataIntent.getStringArrayListExtra("EDUCATION_ARRAY");
ArrayList<String>AGENT_RATING_ARRAY = dataIntent.getStringArrayListExtra("AGENT_RATING_ARRAY");
ArrayList<String>CPV_STATUS_ARRAY = dataIntent.getStringArrayListExtra("CPV_STATUS_ARRAY");
ArrayList<String>ST_REMARK_ARRAY = dataIntent.getStringArrayListExtra("ST_REMARK_ARRAY");
ArrayList<String>LATITUDE_ARRAY = dataIntent.getStringArrayListExtra("LATITUDE_ARRAY");
ArrayList<String>LONGITUDE_ARRAY = dataIntent.getStringArrayListExtra("LONGITUDE_ARRAY");
ArrayList<String>SIGNATURE_IMAGE_ARRAY = dataIntent.getStringArrayListExtra("SIGNATURE_IMAGE_ARRAY");
ArrayList<String>JPEG_ONE_ARRAY = dataIntent.getStringArrayListExtra("JPEG_ONE_ARRAY");
ArrayList<String>JPEG_TWO_ARRAY = dataIntent.getStringArrayListExtra("JPEG_TWO_ARRAY");
ArrayList<String>JPEG_THREE_ARRAY = dataIntent.getStringArrayListExtra("JPEG_THREE_ARRAY");
for (int i = 0; i < CASE_ID_ARRAY.size(); i++) {
new UploadDataTask(getApplicationContext()).execute(
CASE_ID_ARRAY.get(i),
CPV_NUMBER_ARRAY.get(i),
CUSTOMER_NAME_ARRAY.get(i),
BILLING_LANDMARK_ARRAY.get(i),
BILLING_LANDLINE_ARRAY.get(i),
EMAIL_ID_ARRAY.get(i),
BILLING_ADDRESS_CHANGE_ARRAY.get(i),
COMPANY_LANDMARK_ARRAY.get(i),
COMPANY_LANDLINE_ARRAY.get(i),
COMPANY_ADDRESS_CHANGE_ARRAY.get(i),
ADDRESS_TYPE_ARRAY.get(i),
ADDRESS_VERIFIED_ARRAY.get(i),
SUB_IDENTITY_CONFIRM_ARRAY.get(i),
VISIT_MONTH_ARRAY.get(i),
VISIT_DATE_ARRAY.get(i),
VISIT_YEAR_ARRAY.get(i),
VISIT_TIME_HOUR_ARRAY.get(i),
VISIT_TIME_MINUTE_ARRAY.get(i),
PERSON_CONTACT_ARRAY.get(i),
RELATION_PERSON_ARRAY.get(i),
REMARKS_ARRAY.get(i),
SIM_RECEIVED_ARRAY.get(i),
NEIGHBOUR_CHECKED_ARRAY.get(i),
HOUSE_AREA_ARRAY.get(i),
HOUSE_LOCALITY_ARRAY.get(i),
HOUSE_OWNERSHIP_ARRAY.get(i),
RESIDENCE_TYPE_ARRAY.get(i),
HOUSE_APPROACH_ARRAY.get(i),
HOUSE_LOCATION_ARRAY.get(i),
EXTERIOR_CONDITION_ARRAY.get(i),
INTERIOR_CONDITION_ARRAY.get(i),
THIRD_PARTY_CONTACT_ARRAY.get(i),
ASSETS_TV_ARRAY.get(i),
ASSETS_AC_ARRAY.get(i),
ASSETS_FRIDGE_ARRAY.get(i),
ASSETS_MUSIC_ARRAY.get(i),
ASSETS_NA_ARRAY.get(i),
NEGATIVE_AREA_ARRAY.get(i),
FAMILY_STRUCTURE_ARRAY.get(i),
FAMILY_STATUS_ARRAY.get(i),
ORGANISATION_ARRAY.get(i),
PROFESSION_ARRAY.get(i),
SERVICE_YEAR_ARRAY.get(i),
VEHICLE_ARRAY.get(i),
EDUCATION_ARRAY.get(i),
AGENT_RATING_ARRAY.get(i),
CPV_STATUS_ARRAY.get(i),
ST_REMARK_ARRAY.get(i),
LATITUDE_ARRAY.get(i),
LONGITUDE_ARRAY.get(i),
SIGNATURE_IMAGE_ARRAY.get(i),
JPEG_ONE_ARRAY.get(i),
JPEG_TWO_ARRAY.get(i),
JPEG_THREE_ARRAY.get(i)
);
}
return Service.START_NOT_STICKY;
}
}
class UploadDataTask extends AsyncTask<String, Integer, String> {
Context mContext;
String CPVNUMBER = null;
public UploadDataTask(Context context) {
this.mContext = context;
}
@Override
protected String doInBackground(String... strings) {
String CASEID = strings[0];
CPVNUMBER = strings[1];
String EXEC_CODE = strings[2];
String BILLINGLANDMARK = strings[3];
String BILLINGLANDLINE = strings[4];
String EMAILID = strings[5];
String BILLINGADDRESSCHANGE = strings[6];
String COMPANYLANDMARK = strings[7];
String COMPANYLANDLINE = strings[8];
String COMPANYADDRESSCHANGE = strings[9];
String ADDTYPE = strings[10];
String ADDRESSVERIFIED = strings[11];
String SUBIDENTITYCONFIRM = strings[12];
String VISITMONTH = strings[13];
String VISITDATE = strings[14];
String VISITYEAR = strings[15];
String VISITTIMEHOUR = strings[16];
String VISITTIMEMINUTE = strings[17];
String PERSONCONTACT = strings[18];
String RELATIONPERSON = strings[19];
String REMARKS = strings[20];
String SIMRECEIVED = strings[21];
String NEIGHBORCHECK = strings[22];
String HOUSEAREA = strings[23];
String HOUSELOCALITY = strings[24];
String HOUSEOWNERSHIP = strings[25];
String RESIDENCETYPE = strings[26];
String HOUSEAPPROACH = strings[27];
String HOUSELOCATION = strings[28];
String EXTERIORCONDITION = strings[29];
String INTERIORCONDITION = strings[30];
String THIRDPARTYCONTACT = strings[31];
String ASSETSTV = strings[32];
String ASSETSAC = strings[33];
String ASSETSFRIDGE = strings[34];
String ASSETSMUSIC = strings[35];
String ASSETSNA = strings[36];
String NEGATIVEAREA = strings[37];
String FAMILYSTRUCTURE = strings[38];
String FAMILYSTATUS = strings[39];
String ORGANISATION = strings[40];
String PROFESSION = strings[41];
String SERVICEYEAR = strings[42];
String VEHICLE = strings[43];
String EDUCATION = strings[44];
String AGENTRATING = strings[45];
String CPVSTATUS = strings[46];
String STREMARK = strings[47];
String LATITUDE = strings[48];
String LONGITUDE = strings[49];
String SIGNATUREIMAGE = strings[50];
String JPEGONEIMAGE = strings[51];
String JPEFTWOIMAGE = strings[52];
String JPEGTHREEIMAGE = strings[53];
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("ID", CASEID));
pairs.add(new BasicNameValuePair("cpv_number", CPVNUMBER));
pairs.add(new BasicNameValuePair("EXEC_CODE", EXEC_CODE));
pairs.add(new BasicNameValuePair("code", EXEC_CODE));
pairs.add(new BasicNameValuePair("BILLING_LANDMARK", BILLINGLANDMARK));
pairs.add(new BasicNameValuePair("BILLING_LANDLINE", BILLINGLANDLINE));
pairs.add(new BasicNameValuePair("EMAIL", EMAILID));
pairs.add(new BasicNameValuePair("BILLING_ADDRESS_CHANGE", BILLINGADDRESSCHANGE));
pairs.add(new BasicNameValuePair("COMPANY_LANDMARK", COMPANYLANDMARK));
pairs.add(new BasicNameValuePair("COMPANY_LANDLINE", COMPANYLANDLINE));
pairs.add(new BasicNameValuePair("COMPANY_ADDRESS_CHANGE", COMPANYADDRESSCHANGE));
pairs.add(new BasicNameValuePair("ADD_TYPE", ADDTYPE));
pairs.add(new BasicNameValuePair("ADDRESS_VERIFIED", ADDRESSVERIFIED));
pairs.add(new BasicNameValuePair("SUB_IDENTITY_CONFIRM", SUBIDENTITYCONFIRM));
pairs.add(new BasicNameValuePair("visit_mm", VISITMONTH));
pairs.add(new BasicNameValuePair("visit_dd", VISITDATE));
pairs.add(new BasicNameValuePair("visit_yy", VISITYEAR));
pairs.add(new BasicNameValuePair("visit_time_hh", VISITTIMEHOUR));
pairs.add(new BasicNameValuePair("visit_time_mm", VISITTIMEMINUTE));
pairs.add(new BasicNameValuePair("PERSON_CONTACT", PERSONCONTACT));
pairs.add(new BasicNameValuePair("RELATION_PERSON", RELATIONPERSON));
pairs.add(new BasicNameValuePair("REMARKS", REMARKS));
pairs.add(new BasicNameValuePair("SIM_RECD", SIMRECEIVED));
pairs.add(new BasicNameValuePair("NEIGHBOR_CHECK", NEIGHBORCHECK));
pairs.add(new BasicNameValuePair("HOUSE_AREA", HOUSEAREA));
pairs.add(new BasicNameValuePair("HOUSE_LOCALITY", HOUSELOCALITY));
pairs.add(new BasicNameValuePair("HOUSE_OWNERSHIP", HOUSEOWNERSHIP));
pairs.add(new BasicNameValuePair("RESIDENCE_TYPE", RESIDENCETYPE));
pairs.add(new BasicNameValuePair("HOUSE_APPROACH", HOUSEAPPROACH));
pairs.add(new BasicNameValuePair("HOUSE_LOCATION", HOUSELOCATION));
pairs.add(new BasicNameValuePair("EXTERIOR_CONDITION", EXTERIORCONDITION));
pairs.add(new BasicNameValuePair("INTERIOR_CONDITION", INTERIORCONDITION));
pairs.add(new BasicNameValuePair("THIRD_PARTY_CONTACT", THIRDPARTYCONTACT));
pairs.add(new BasicNameValuePair("ASSETS_TV", ASSETSTV));
pairs.add(new BasicNameValuePair("ASSETS_AC", ASSETSAC));
pairs.add(new BasicNameValuePair("ASSETS_FRIDGE", ASSETSFRIDGE));
pairs.add(new BasicNameValuePair("ASSETS_MUSIC", ASSETSMUSIC));
pairs.add(new BasicNameValuePair("ASSETS_NA", ASSETSNA));
pairs.add(new BasicNameValuePair("NEGATIVE_AREA", NEGATIVEAREA));
pairs.add(new BasicNameValuePair("FAMILY_STRUCTURE", FAMILYSTRUCTURE));
pairs.add(new BasicNameValuePair("FAMILY_STATUS", FAMILYSTATUS));
pairs.add(new BasicNameValuePair("ORGANISATION", ORGANISATION));
pairs.add(new BasicNameValuePair("PROFESSION", PROFESSION));
pairs.add(new BasicNameValuePair("SERVICE_YEAR", SERVICEYEAR));
pairs.add(new BasicNameValuePair("VEHICLE", VEHICLE));
pairs.add(new BasicNameValuePair("EDUCATION", EDUCATION));
pairs.add(new BasicNameValuePair("AGENT_RATING", AGENTRATING));
pairs.add(new BasicNameValuePair("CPV_STATUS", CPVSTATUS));
pairs.add(new BasicNameValuePair("ST_REMARK", STREMARK));
pairs.add(new BasicNameValuePair("cpv_lat", LATITUDE));
pairs.add(new BasicNameValuePair("cpv_long", LONGITUDE));
pairs.add(new BasicNameValuePair("jpgfile2", JPEGONEIMAGE));
pairs.add(new BasicNameValuePair("jpgfile3", JPEFTWOIMAGE));
pairs.add(new BasicNameValuePair("jpgfile4", JPEGTHREEIMAGE));
pairs.add(new BasicNameValuePair("signature", SIGNATUREIMAGE));
HttpParams params = new BasicHttpParams();
params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION,
HttpVersion.HTTP_1_1);
HttpClient mHttpClient = new DefaultHttpClient(params);
HttpPost localHttpPost = new HttpPost("http://example.com/Update.aspx");
localHttpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
try {
localHttpPost.setEntity(new UrlEncodedFormEntity(pairs));
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String response = mHttpClient.execute(localHttpPost, responseHandler);
System.out.println(response);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
Log.e("Exception", e.getLocalizedMessage());
} catch (ClientProtocolException e) {
e.printStackTrace();
Log.e("Exception", e.getLocalizedMessage());
} catch (IOException e) {
e.printStackTrace();
Log.e("Exception", e.getLocalizedMessage());
}
return null;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(mContext)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Case Upload Successfully")
.setContentText("Case With CPV Number "+ CPVNUMBER +" uploaded successfully")
.setAutoCancel(true);
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(mContext, MainActivity.class);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(mContext);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MainActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
mBuilder.setDefaults(Notification.DEFAULT_ALL);
NotificationManager mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(0, mBuilder.build());
}
}
答案 0 :(得分：0)
没有理由创建所有这些AsyncTasks。创建一个简单的Thread来完成您的工作并在那里进行循环。
您正在Service.START_NOT_STICKY中返回onStartCommand，告知系统 NOT 如果过早被杀，则重新启动服务。你应该回来了。 Service.START_REDELIVER_INTENT。