Pertama lakukan instalasi Bluecove di Eclipse atau Netbeans. Lalu buat sorce code berikut ini:
1. Aplikasi di PC (Komputer) Anda:
import java.io.*;
import javax.bluetooth.*;
import javax.microedition.io.*;
public class EchoServer {
public final UUID uuid = new UUID( //the uid of the service, it has to be unique,
"27012f0c68af4fbf8dbe6bbaf7aa432a", false); //it can be generated randomly
public final String name = "Echo Server"; //the name of the service
public final String url = "btspp://localhost:" + uuid //the service url
+ ";name=" + name
+ ";authenticate=false;encrypt=false;";
LocalDevice local = null;
StreamConnectionNotifier server = null;
StreamConnection conn = null;
public EchoServer() {
try {
System.out.println("Setting device to be discoverable...");
local = LocalDevice.getLocalDevice();
local.setDiscoverable(DiscoveryAgent.GIAC);
System.out.println("Start advertising service...");
server = (StreamConnectionNotifier)Connector.open(url);
System.out.println("Waiting for incoming connection...");
conn = server.acceptAndOpen();
System.out.println("Client Connected...");
DataInputStream din = new DataInputStream(conn.openInputStream());
while(true){
String cmd = "";
char c;
while (((c = din.readChar()) > 0) && (c!='\n') ){
cmd = cmd + c;
}
System.out.println("Received " + cmd);
}
} catch (Exception e) {System.out.println("Exception Occured: " + e.toString());}
}
public static void main (String args[]){
EchoServer echoserver = new EchoServer();
}
}
2. Aplikasi di HP Anda:
import javax.microedition.midlet.*; import javax.microedition.lcdui.*; import javax.microedition.io.*; import javax.bluetooth.*; import java.io.*; public class EchoClient extends MIDlet implements CommandListener,DiscoveryListener { List main_list,dev_list; Command exit,ok; TextBox cmd; Display display; java.util.Vector devices,services; LocalDevice local; DiscoveryAgent agent; DataOutputStream dout; int currentDevice = 0; //used as an indicator to the device queried for //the echo server public void startApp() { main_list = new List("Echo Server",Choice.IMPLICIT); //the main menu dev_list = new List("Select Device",Choice.IMPLICIT); //the list of devices cmd = new TextBox("Text to echo","",120,TextField.ANY); exit = new Command("Exit",Command.EXIT,1); ok = new Command("Send",Command.OK,1); display = Display.getDisplay(this); main_list.addCommand(exit); main_list.setCommandListener(this); dev_list.addCommand(exit); dev_list.setCommandListener(this); cmd.addCommand(ok); cmd.setCommandListener(this); main_list.append("Find Echo Server",null); display.setCurrent(main_list); } public void commandAction(Command com, Displayable dis) { if (com == exit){ //exit triggered from the main form destroyApp(false); notifyDestroyed(); } if (com == List.SELECT_COMMAND){ if (dis == main_list){ //select triggered from the main from if (main_list.getSelectedIndex() >= 0){ //find devices FindDevices(); do_alert("Searching for devices...", Alert.FOREVER); } } if (dis == dev_list){ //select triggered from the device list StreamConnection conn = null; ServiceRecord service = (ServiceRecord) services.elementAt(dev_list.getSelectedIndex()); String url = service.getConnectionURL( ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false); try { conn = (StreamConnection) Connector.open(url); //establish the connection dout = new DataOutputStream(conn.openOutputStream());//Get the output stream display.setCurrent(cmd); //Show the textbox } catch (Exception e) {this.do_alert("Error Connecting" , 4000);} } } if(com == ok){ //the user is sending a command try{ dout.writeChars(cmd.getString() + "\n"); dout.flush(); cmd.setString(""); } catch (Exception e) {this.do_alert("Error sending data" , 4000);} } } public void FindDevices(){ try{ devices = new java.util.Vector(); LocalDevice local = LocalDevice.getLocalDevice(); DiscoveryAgent agent = local.getDiscoveryAgent(); agent.startInquiry(DiscoveryAgent.GIAC,this); }catch(Exception e){this.do_alert("Erron in initiating search" , 4000);} } public void FindServices(RemoteDevice device){ try{ UUID[] uuids = new UUID[1]; uuids[0] = new UUID("27012f0c68af4fbf8dbe6bbaf7aa432a",false); //The UUID of the ech service local = LocalDevice.getLocalDevice(); agent = local.getDiscoveryAgent(); agent.searchServices(null,uuids,device,this); }catch(Exception e){this.do_alert("Erron in initiating search" , 4000);} } public void deviceDiscovered(RemoteDevice remoteDevice,DeviceClass deviceClass) { devices.addElement(remoteDevice); } public void servicesDiscovered(int transID,ServiceRecord[] serviceRecord) { for (int x = 0; x < serviceRecord.length; x++ ) services.addElement(serviceRecord[x]); try{ dev_list.append(((RemoteDevice)devices.elementAt(currentDevice)). getFriendlyName(false),null); }catch(Exception e){this.do_alert("Erron in initiating search" , 4000);} } public void inquiryCompleted(int param){ switch (param) { case DiscoveryListener.INQUIRY_COMPLETED: //Inquiry completed normally if (devices.size() > 0){ //Atleast one device has been found services = new java.util.Vector(); this.FindServices((RemoteDevice) devices.elementAt(0)); //Check if the first device offers the service }else do_alert("No device found in range",4000); break; case DiscoveryListener.INQUIRY_ERROR: // Error during inquiry this.do_alert("Inqury error" , 4000); break; case DiscoveryListener.INQUIRY_TERMINATED: // Inquiry terminated by agent.cancelInquiry() this.do_alert("Inqury Canceled" , 4000); break; } } public void serviceSearchCompleted(int transID, int respCode) { switch(respCode) { case DiscoveryListener.SERVICE_SEARCH_COMPLETED: if(currentDevice == devices.size() -1){ //all devices have been searched if(services.size() > 0){ display.setCurrent(dev_list); }else do_alert("The service was not found",4000); }else{ //search next device currentDevice++; this.FindServices((RemoteDevice)devices.elementAt(currentDevice)); } break; case DiscoveryListener.SERVICE_SEARCH_DEVICE_NOT_REACHABLE: this.do_alert("Device not Reachable" , 4000); break; case DiscoveryListener.SERVICE_SEARCH_ERROR: this.do_alert("Service serch error" , 4000); break; case DiscoveryListener.SERVICE_SEARCH_NO_RECORDS: this.do_alert("No records returned" , 4000); break; case DiscoveryListener.SERVICE_SEARCH_TERMINATED: this.do_alert("Inqury Cancled" , 4000); break; } } public void do_alert(String msg,int time_out){ if (display.getCurrent() instanceof Alert ){ ((Alert)display.getCurrent()).setString(msg); ((Alert)display.getCurrent()).setTimeout(time_out); }else{ Alert alert = new Alert("Bluetooth"); alert.setString(msg); alert.setTimeout(time_out); display.setCurrent(alert); } } public void pauseApp() {} public void destroyApp(boolean unconditional) {} }Silakan anda juga membaca: http://www.miniware.net/articles/viewarticle.php?id=22
-= Sapto Sutardi =-
Mataram, 4 November 2009
Sapto Code 