在Android(服务器)和pc(客户端)上的bluecove之间初始化蓝牙连接
我知道还有其他相关的话题,但在我的例子中,我希望Android设备将蓝牙连接初始化为服务器。我按照文档的说明编写了服务器:在Android(服务器)和pc(客户端)上的bluecove之间初始化蓝牙连接,android,bluetooth,Android,Bluetooth,我知道还有其他相关的话题,但在我的例子中,我希望Android设备将蓝牙连接初始化为服务器。我按照文档的说明编写了服务器: private class AcceptThread implements Runnable { private final BluetoothServerSocket mmServerSocket; public AcceptThread() { BluetoothServerSocket tmp = null; try
private class AcceptThread implements Runnable {
private final BluetoothServerSocket mmServerSocket;
public AcceptThread() {
BluetoothServerSocket tmp = null;
try {
tmp = mBluetooth.listenUsingRfcommWithServiceRecord(
"myService", mUuid);
} catch (IOException e) { }
mmServerSocket = tmp;
}
public void run() {
BluetoothSocket socket = null;
// Keep listening until exception occurs or a socket is returned
while (true) {
try {
System.out.println("SERVER SOCKET LISTENING");
socket = mmServerSocket.accept();
} catch (IOException e) {
break;
}
// If a connection was accepted
if (socket != null) {
System.out.println("SIGNAL RECEIVED");
// Do work to manage the connection (in a separate thread)
Toast.makeText(getApplicationContext(), "SIGNAL RECEIVED", Toast.LENGTH_LONG).show();
try {
mmServerSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
break;
}
}
}
/** Will cancel the listening socket, and cause the thread to finish */
public void cancel() {
try {
mmServerSocket.close();
} catch (IOException e) { }
}
}
另一方面,我使用bluecove API来发现远程设备和服务
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.Vector;
import javax.bluetooth.DeviceClass;
import javax.bluetooth.DiscoveryAgent;
import javax.bluetooth.DiscoveryListener;
import javax.bluetooth.LocalDevice;
import javax.bluetooth.RemoteDevice;
import javax.bluetooth.ServiceRecord;
import javax.bluetooth.UUID;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
/**
* A simple SPP client that connects with an SPP server
*/
public class SampleSPPClient implements DiscoveryListener{
//object used for waiting
private static Object lock=new Object();
//vector containing the devices discovered
private static Vector vecDevices=new Vector();
private static String connectionURL=null;
public static void main(String[] args) throws IOException {
SampleSPPClient client=new SampleSPPClient();
//display local device address and name
LocalDevice localDevice = LocalDevice.getLocalDevice();
System.out.println("Address: "+localDevice.getBluetoothAddress());
System.out.println("Name: "+localDevice.getFriendlyName());
//find devices
DiscoveryAgent agent = localDevice.getDiscoveryAgent();
System.out.println("Starting device inquiry...");
agent.startInquiry(DiscoveryAgent.GIAC, client);
try {
synchronized(lock){
lock.wait();
}
}
catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("Device Inquiry Completed. ");
//print all devices in vecDevices
int deviceCount=vecDevices.size();
if(deviceCount <= 0){
System.out.println("No Devices Found .");
System.exit(0);
}
else{
//print bluetooth device addresses and names in the format [ No. address (name) ]
System.out.println("Bluetooth Devices: ");
for (int i = 0; i <deviceCount; i++) {
RemoteDevice remoteDevice=(RemoteDevice)vecDevices.elementAt(i);
System.out.println((i+1)+". "+remoteDevice.getBluetoothAddress()+" ("+remoteDevice.getFriendlyName(true)+")");
}
}
System.out.print("Choose Device index: ");
BufferedReader bReader=new BufferedReader(new InputStreamReader(System.in));
String chosenIndex=bReader.readLine();
int index=Integer.parseInt(chosenIndex.trim());
//check for spp service
RemoteDevice remoteDevice=(RemoteDevice)vecDevices.elementAt(index-1);
UUID[] uuidSet = new UUID[1];
uuidSet[0]=new UUID("4e3aea40e2a511e095720800200c9a66", false);
System.out.println("\nSearching for service...");
agent.searchServices(null,uuidSet,remoteDevice,client);
try {
synchronized(lock){
lock.wait();
}
}
catch (InterruptedException e) {
e.printStackTrace();
}
if(connectionURL==null){
System.out.println("Device does not support Simple SPP Service.");
System.exit(0);
}
//connect to the server and send a line of text
StreamConnection streamConnection=(StreamConnection)Connector.open(connectionURL);
//send string
OutputStream outStream=streamConnection.openOutputStream();
PrintWriter pWriter=new PrintWriter(new OutputStreamWriter(outStream));
pWriter.write("Test String from SPP Client\r\n");
pWriter.flush();
//read response
InputStream inStream=streamConnection.openInputStream();
BufferedReader bReader2=new BufferedReader(new InputStreamReader(inStream));
String lineRead=bReader2.readLine();
System.out.println(lineRead);
}//main
//methods of DiscoveryListener
public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
//add the device to the vector
if(!vecDevices.contains(btDevice)){
vecDevices.addElement(btDevice);
}
}
//implement this method since services are not being discovered
public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
System.out.println(servRecord[0].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false));
if(servRecord!=null && servRecord.length>0){
connectionURL=servRecord[0].getConnectionURL(ServiceRecord.AUTHENTICATE_ENCRYPT,false);
}
synchronized(lock){
lock.notify();
}
}
//implement this method since services are not being discovered
public void serviceSearchCompleted(int transID, int respCode) {
synchronized(lock){
lock.notify();
}
}
public void inquiryCompleted(int discType) {
synchronized(lock){
lock.notify();
}
}//end method
}
导入java.io.BufferedReader;
导入java.io.IOException;
导入java.io.InputStream;
导入java.io.InputStreamReader;
导入java.io.OutputStream;
导入java.io.OutputStreamWriter;
导入java.io.PrintWriter;
导入java.util.Vector;
导入javax.bluetooth.DeviceClass;
导入javax.bluetooth.DiscoveryAgent;
导入javax.bluetooth.DiscoveryListener;
导入javax.bluetooth.LocalDevice;
导入javax.bluetooth.RemoteDevice;
导入javax.bluetooth.ServiceRecord;
导入javax.bluetooth.UUID;
导入javax.microedition.io.Connector;
导入javax.microedition.io.StreamConnection;
/**
*与SPP服务器连接的简单SPP客户端
*/
公共类SampleSPPClient实现DiscoveryListener{
//用于等待的对象
私有静态对象锁=新对象();
//包含已发现设备的向量
私有静态向量vecDevices=新向量();
私有静态字符串connectionURL=null;
公共静态void main(字符串[]args)引发IOException{
SampleSPPClient客户端=新建SampleSPPClient();
//显示本地设备地址和名称
LocalDevice LocalDevice=LocalDevice.getLocalDevice();
System.out.println(“地址:+localDevice.getBluetoothAddress());
System.out.println(“名称:+localDevice.getFriendlyName());
//查找设备
DiscoveryAgent=localDevice.getDiscoveryAgent();
System.out.println(“启动设备查询…”);
startInquiry代理(DiscoveryAgent.GIAC,客户);
试一试{
已同步(锁定){
lock.wait();
}
}
捕捉(中断异常e){
e、 printStackTrace();
}
System.out.println(“设备查询完成”);
//在vecDevices中打印所有设备
int-deviceCount=vecDevices.size();
如果(deviceCount我在使用时找到了一些电话服务记录:
UUID[] uuidSet = new UUID[1];
uuidSet[0]=new UUID(0x0100);
int[] attrIds = { 0x0100 };
System.out.println("\nSearching for service...");
agent.searchServices(attrIds, uuidSet, remoteDevice, client);
在serviceSearch之后,您将调用lock.notify()两次,请在servicesDiscovered函数中删除它
您还应该浏览服务记录并查找您感兴趣的服务记录。URL将显示btgoep://或btspp://
在for循环中搜索时,使用此代码列出服务名称
for(int i = 0; i < servRecord.length; i++)
{
String url = servRecord[i].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
DataElement serviceName = srs[i].getAttributeValue(0x0100);
if (serviceName != null) {
System.out.println("service " + serviceName.getValue() + " found " + url);
} else {
System.out.println("service found " + url);
}
for(int i=0;i
我有一个确切的问题,android api似乎没有向SDP注册ServiceRecord,以便Bluecove api可以找到它。
无论我使用什么UUID,它都只会找到我的手机默认注册的UUID,即音频网关和电话簿OBEX推送等
编辑---
我也遇到了同样的问题,但我意识到我实际上还没有调用ListenusingSecureRfcomSocket。然后它没有注册服务记录。
但在那之后,一切都很好