안드로이드 예제 Service with HttpClient

시스템 부팅시부터 주기적으로 백그라운드에서 실행되는 Service가 HttpClient를 사용하여 웹사이트의 정보를 확인하는 예제

AndroidManifest.xml

 0: <?xml version="1.0" encoding="utf-8"?>
 1: <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 2:     package="test.android.hello"
 3:     android:versionCode="1"
 4:     android:versionName="1.0" >
 5:     <uses-sdk android:minSdkVersion="10" />
 6:     <uses-permission android:name="android.permission.INTERNET" />
 7:     <uses-permission android:name="android.permission.CALL_PHONE"/>
 8:     <uses-permission android:name="android.permission.SEND_SMS"/>
 9:     <uses-permission android:name="android.permission.CAMERA" />
10:  	<uses-feature android:name="android.hardware.camera" />
11:  	<uses-feature android:name="android.hardware.camera.autofocus" />
12:  	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
13:  	<uses-permission android:name="android.permission.RECORD_AUDIO"/>
14:  	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
15:     <application
16:         android:icon="@drawable/ic_launcher"
17:         android:label="@string/app_name" >
18:         
19:         <activity
20:             android:name=".ServiceStarterActivity"
21:             android:label="@string/app_name" >
22:             <intent-filter>
23:                 <action android:name="android.intent.action.MAIN" />
24:                 <category android:name="android.intent.category.LAUNCHER" />
25:             </intent-filter>
26:         </activity>
27:         
28:         <service  android:name=".HttpRequestService" />
29:         <receiver android:name=".BootBroadcastReceiver" android:label="@string/app_name">
30: 	   		<intent-filter>
31: 	    			<action android:name="android.intent.action.BOOT_COMPLETED" />
32: 	    			<category android:name="android.intent.category.LAUNCHER" />
33: 	   		</intent-filter>
34:   	    </receiver>
35:     </application>
36: </manifest>

BootBroadcastReceiver

 0:  package test.android.hello;
 1:  
 2:  import java.util.Calendar;
 3:  
 4:  import android.app.AlarmManager;
 5:  import android.app.PendingIntent;
 6:  import android.content.BroadcastReceiver;
 7:  import android.content.Context;
 8:  import android.content.Intent;
 9:  
10:  public class BootBroadcastReceiver extends BroadcastReceiver {
11:  
12:  	@Override
13:  	public void onReceive(Context context, Intent intent) {
14:  		 if(intent.getAction().equals("android.intent.action.BOOT_COMPLETED")){
15:  			 int SECS = 1000;
16:  			 int MINS = 60 * SECS;
17:  			 Calendar cal = Calendar.getInstance();
18:  			 Intent in = new Intent(context, HttpRequestService.class);
19:  			 PendingIntent pi = PendingIntent.getService(context, 0, in, PendingIntent.FLAG_UPDATE_CURRENT);
20:  			 AlarmManager alarms = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
21:  			 alarms.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), MINS, pi);
22:  		}
23:  	}
24:  }

HttpRequestService

 0:  package test.android.hello;
 1:  
 2:  import java.io.DataInputStream;
 3:  import java.io.IOException;
 4:  import java.net.Socket;
 5:  
 6:  import android.app.Service;
 7:  import android.content.Intent;
 8:  import android.os.IBinder;
 9:  import android.util.Log;
10:  
11:  import android.app.Notification;
12:  import android.app.NotificationManager;
13:  import android.app.PendingIntent;
14:  import android.content.BroadcastReceiver;
15:  import android.content.Context;
16:  import android.content.IntentFilter;
17:  import android.net.Uri;
18:  
19:  public class HttpRequestService extends Service {
20:  
21:  	private static final int MY_NOTIFICATION_ID=1;
22:  	private NotificationManager notificationManager;
23:  	private Notification myNotification;
24:  	private final String myBlog = "http://micropilot.tistory.com/";
25:  	
26:  	@Override
27:  	public void onCreate() {
28:  		super.onCreate();
29:  	}
30:  	
31:  	@Override
32:  	public int onStartCommand(Intent intent, int flags, int startId) {
33:  
34:  		Log.i("서비스호출", "onStartCommand()실행됨");
35:  		
36:  		HttpClientUtil httpUtil = new HttpClientUtil();
37:  		String result = httpUtil.request("id", "pwd", 
38:  				"http://xxxxxx.mireene.com/nms/isNewMsg.jsp"); //웹서버의 데이터 가져옴
39:  		if(result==null || !result.equals("1")) 
40:  			super.onStartCommand(intent, flags, startId);
41:  		
42:  		// 웹서버에서 응답한 데이터가 "1"인 경우에만 이용자에게 Notification을 출력하여 알려 줌
43:  		notificationManager =
44:  		 (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
45:  		myNotification = new Notification(R.drawable.ic_launcher,
46:  		  "Notification!",
47:  		  System.currentTimeMillis());
48:  		Context context = getApplicationContext();
49:  		String notificationTitle = "새로운 글 등록알림";
50:  		String notificationText = "http://micropilot.tistory.com 접속";
51:  		Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(myBlog)); // 통지를 선택하면 웹사이트로 이동
52:  		PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(),
53:  		    0, myIntent,
54:  		    Intent.FLAG_ACTIVITY_NEW_TASK);
55:  		myNotification.defaults |= Notification.DEFAULT_SOUND;
56:  		myNotification.flags |= Notification.FLAG_AUTO_CANCEL;
57:  		myNotification.setLatestEventInfo(context,
58:  		   notificationTitle,
59:  		   notificationText,
60:  		   pendingIntent);
61:  		notificationManager.notify(MY_NOTIFICATION_ID, myNotification);
62:  		
63:  		return super.onStartCommand(intent, flags, startId);
64:  	}
65:  	
66:  	@Override
67:  	public void onDestroy() {
68:  		super.onDestroy();
69:  	}
70:  	
71:  	@Override
72:  	public IBinder onBind(Intent arg0) {
73:  		return null;
74:  	}
75:  }

HttpClientUtil

 0: package test.android.hello;
 1: 
 2: import java.io.*;
 3: import java.util.*;
 4: 
 5: import org.apache.http.*;
 6: import org.apache.http.client.*;
 7: import org.apache.http.client.entity.*;
 8: import org.apache.http.client.methods.*;
 9: import org.apache.http.impl.client.*;
10: import org.apache.http.message.*;
11: import org.apache.http.params.*;
12: 
13: import android.util.Log;
14: 
15: public class HttpClientUtil {
16: 	
17: 	public String request(String id, String pwd, String url){
18: 		String result = null;
19: 		InputStream is = null;
20: 		String totalMessage = "";
21: 		//String url = "http://xxxxxx.mireene.com/";
22: 		HttpClient httpclient = new DefaultHttpClient();
23: 		try {
24: 		  /** 지정한 시간 내에 연결이 되지 않으면 오류를 발생하도록 설정함 */
25: 		  //String id = "id";
26: 		  //String pwd = "password";
27: 		
28: 		  ArrayList<BasicNameValuePair> nameValuePairs = new ArrayList<BasicNameValuePair>();
29: 		  nameValuePairs.add(new BasicNameValuePair("ID", id));
30: 		  nameValuePairs.add(new BasicNameValuePair("PWD", pwd));
31: 
32: 		  HttpParams params = httpclient.getParams();
33: 		  HttpConnectionParams.setConnectionTimeout(params, 5000); // 5초내에 연결되지 않으면 오류발생
34: 		  HttpConnectionParams.setSoTimeout(params, 5000);
35: 		
36: 		  HttpPost httppost = new HttpPost(url);
37: 		  UrlEncodedFormEntity entityRequest = new UrlEncodedFormEntity(nameValuePairs, "UTF-8");
38: 		  httppost.setEntity(entityRequest);
39: 		
40: 		  HttpResponse response = httpclient.execute(httppost);
41: 		  HttpEntity entityResponse = response.getEntity();
42: 		  is = entityResponse.getContent();
43: 		
44: 		  /** convert response to string */
45: 		  BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8);
46: 		
47: 		  StringBuilder sb = new StringBuilder();
48: 		  String line = null;
49: 		  while ((line = reader.readLine()) != null) {
50: 		      sb.append(line).append("\n");
51: 		  }
52: 		  is.close();
53: 		  result = sb.toString();
54: 		  
55: 		  Log.i("응답결과", result);
56: 		} catch (IOException e) {
57: 		    e.printStackTrace();
58: 		}catch (Exception e){
59: 			e.printStackTrace();
60: 		} finally {
61: 		    httpclient.getConnectionManager().shutdown();
62: 		}
63: 		return result;
64: 	}
65: }

서버측 코드 (isNewMsg.jsp)

0: <%@ page language="java" contentType="text/plain; charset=EUC-KR" pageEncoding="EUC-KR"%>
1: <%="1"%><% out.flush(); %>