前言
由于项目需求,系统的应用环境较为苛刻,不允许有什么无线设备,包括蓝牙、NFC都禁止使用,现在如果要实现移动端和PC端双向通信,包括传输文字和传输文件,就只能使用USB数据线。为此研究了多种实现通讯的方法,最后决定使用adb的方法,创建一个Socket,来实现应用进程之间进行双向通信。这个方法需要再PC端和移动端进行代码开发。直接上代码吧。
效果
效果视频请点这里
代码
PC端
主程序代码
import usb.ReceiveMsgThread;
import usb.SendMsgThread;
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;
public class mainApp {
private static Socket mSocket; //和Android设备之间的连接
private static DataInputStream inputStream; //输入流,接收来自android设备的数据
private static DataOutputStream outputStream; //输出流,向android设备发出数据
private static ReceiveMsgThread receiveMsgThread = null; //接收数据的线程
private static SendMsgThread sendMsgThread = null; //发送数据的线程
public static void main(String[] args) {
if (initLoaclSocket(7777, 8888)){
System.out.println("连接成功");
receiveData();
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
if (n==1){
System.out.println("发送消息");
if(sendMsgThread == null) {
sendMsgThread = new SendMsgThread(outputStream);
sendMsgThread.start();
}
//sendMsgThread.sendMsg("来自电脑的消息");
sendMsgThread.sendFile("C:\\Users\\nanju\\Desktop\\44.png");
}
}
}
/**
* 初始化本地设备
* @param localPort 本地socket端口
* @param androidPort android设备端socketserver端口
* @return true 成功 ,false 失败
*/
private static boolean initLoaclSocket(int localPort,int androidPort){
boolean isOk = false;
try {
Runtime.getRuntime().exec("adb forward tcp:" + localPort + " tcp:" + androidPort);
isOk = true;
} catch (IOException e) {
e.printStackTrace();
isOk = false;
}
if(isOk) {
isOk = connectAndroidDevice(localPort);
}
return isOk;
}
/**
* 连接Android设备 , adb forward ,端口转发
*/
private static boolean connectAndroidDevice(int port) {
boolean isOk = false;
String ip;
try {
ip = InetAddress.getLocalHost().getHostAddress();
System.out.println("ip = " + ip + ", port = " + port);
ip = "127.0.0.1";
mSocket = new Socket(ip,port);
inputStream = new DataInputStream(mSocket.getInputStream());
outputStream = new DataOutputStream(mSocket.getOutputStream());
isOk = true;
} catch (UnknownHostException e) {
e.printStackTrace();
isOk = false;