小贝子编程

帮我解决j2me的蓝牙问题



我对j2me的润色有疑问。我使用eclipse IDE。以下是我的j2me文件:

BluetoothHandler.java 

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.microedition.lcdui.Form;
/**
 * @author sivakumar.j1
 *
 */
public class BluetoothHandler implements DiscoveryListener {
 Form frm=null;
 LocalDevice localDevice=null;
 DiscoveryAgent agent=null;
 boolean inquiry_started=false;
 boolean bluetooth_turned_on=false;
 public BluetoothHandler(Form frm1)
 {
  frm=frm1;
  frm1=null;
 }
 public void doDeviceSearching()
 {
  localDevice=null;
  agent=null;
  try
  {
   localDevice=LocalDevice.getLocalDevice();
   localDevice.setDiscoverable(DiscoveryAgent.GIAC);
   bluetooth_turned_on=true;
  }
  catch(Exception ex)
  {
   ex.printStackTrace();
   frm.append("ntTurn on bluetooth in ur device");
   bluetooth_turned_on=false;
  }
  agent=localDevice.getDiscoveryAgent();
  inquiry_started=false;
  if(this.bluetooth_turned_on)
  {
   try
   {
    inquiry_started=agent.startInquiry(DiscoveryAgent.GIAC,this);
    if(inquiry_started==false)
     frm.append("ntCannot able to start inquiry");
    else
     frm.append("ntStarted inquiry");
   }
   catch(Exception ex)
   {
    ex.printStackTrace();
    frm.append("ntInquiry starting exception : "+ex.toString());
   }
  }
 }
 /* (non-Javadoc)
  * @see javax.bluetooth.DiscoveryListener#deviceDiscovered(javax.bluetooth.RemoteDevice, javax.bluetooth.DeviceClass)
  */
 public void deviceDiscovered(RemoteDevice remoteDevice1, DeviceClass arg1) {
  // TODO Auto-generated method stub
  RemoteDevice remoteDevice=remoteDevice1;
  String address=null;
  String name=null;
  try
  {
   address=remoteDevice.getBluetoothAddress();
   name=remoteDevice.getFriendlyName(true);
   frm.append("ntDevice address : "+address+" , name : "+name);
   address=name=null;
  }
  catch(Exception ex)
  {
   frm.append("ntException in getting name & address of device : "+ex.toString());
  }
 }
 /* (non-Javadoc)
  * @see javax.bluetooth.DiscoveryListener#inquiryCompleted(int)
  */
 public void inquiryCompleted(int arg0) {
  // TODO Auto-generated method stub
  frm.append("ntInquiry completed");
 }
 /* (non-Javadoc)
  * @see javax.bluetooth.DiscoveryListener#serviceSearchCompleted(int, int)
  */
 public void serviceSearchCompleted(int arg0, int arg1) {
  // TODO Auto-generated method stub
 }
 /* (non-Javadoc)
  * @see javax.bluetooth.DiscoveryListener#servicesDiscovered(int, javax.bluetooth.ServiceRecord[])
  */
 public void servicesDiscovered(int arg0, ServiceRecord[] arg1) {
  // TODO Auto-generated method stub
 }
}

BluetoothMidlet.java 

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class BluetoothMidlet extends MIDlet implements CommandListener
{
 Form frm=null;
 Display display=null;
 Command cmdExit=null;
 Command cmdPair=null;
 BluetoothHandler handler=null;
 public BluetoothMidlet() {
  // TODO Auto-generated constructor stub
  display=Display.getDisplay(this);
  frm=new Form("Tesing bluetooth");
  cmdExit=new Command("Exit",Command.EXIT,0);
  cmdPair=new Command("Pair",Command.OK,1);
  frm.append("ntTesting bluetooth");
  frm.addCommand(this.cmdExit);
  frm.addCommand(this.cmdPair);
  frm.setCommandListener(this);
  display.setCurrent(frm);
 }
 protected void destroyApp(boolean flag) throws MIDletStateChangeException {
  // TODO Auto-generated method stub

  this.cmdExit=this.cmdPair=null;
  this.frm=null;
  this.display=null;
  this.notifyDestroyed();
 }
 protected void pauseApp() {
  // TODO Auto-generated method stub
 }
 protected void startApp() throws MIDletStateChangeException {
  // TODO Auto-generated method stub
 }
 public void commandAction(Command cmd, Displayable arg1) {
  // TODO Auto-generated method stub
  if(cmd==this.cmdExit)
  {
   try
   {
    this.destroyApp(true);
   }
   catch(Exception ex)
   {
    ex.printStackTrace();
    this.notifyDestroyed();
   }
  }
  else if(cmd==this.cmdPair)
  {
   handler=null;
   this.handler=new BluetoothHandler(frm);
   handler.doDeviceSearching();
  }
 }
}
以上是我的j2me蓝牙应用程序中的两个java文件。当我在移动设备上部署和执行时，它工作得很好。(显示所发现的设备地址和名称)

但是我创建了一个新的j2me润色项目。将这两个java文件复制到j2me polish项目的源目录中。我还添加了"J2ME-Polishimportbtapi.jar"在构建路径通过右键单击项目，然后选择属性->java构建路径，然后选择选项卡库，然后添加btapi.jar。

然后在eclipse中使用无线工具包模拟器运行j2me polish应用程序。然后出现以下错误

错误:

j2mepolish:
[j2mepolish] info: the license attribute is no longer supported. Please place your license.key file either to ${project.home} or to ${polish.home}.
[j2mepolish] J2ME Polish 2.0 (2008-02-10) (GPL License)
[j2mepolish] Loading device database...
[j2mepolish] using locale [de_DE]...
[j2mepolish] assembling resources for device [Generic/DefaultColorPhone].
[j2mepolish] preprocessing for device [Generic/DefaultColorPhone].
[j2mepolish] Warning: CSS-Style [focused] not found, now using the default style instead. If you use Forms or Lists, you should define the style [focused].
[j2mepolish] Warning: CSS style [title] not found, you should define it for designing the titles of screens.
[j2mepolish] processing locale code...
[j2mepolish] compiling for device [Generic/DefaultColorPhone].
[j2mepolish-javac-Generic/DefaultColorPhone] Compiling 287 source files to C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEclasses
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:6: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.DeviceClass;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:7: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.DiscoveryAgent;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:8: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.DiscoveryListener;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:9: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.LocalDevice;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:10: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.RemoteDevice;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:11: package javax.bluetooth does not exist
    [javac] import javax.bluetooth.ServiceRecord;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:18: cannot find symbol
    [javac] symbol: class DiscoveryListener
    [javac] public class BluetoothHandler implements DiscoveryListener {
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:21: cannot find symbol
    [javac] symbol  : class LocalDevice
    [javac] location: class BluetoothHandler
    [javac] LocalDevice localDevice=null;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:22: cannot find symbol
    [javac] symbol  : class DiscoveryAgent
    [javac] location: class BluetoothHandler
    [javac] DiscoveryAgent agent=null;
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:76: cannot find symbol
    [javac] symbol  : class RemoteDevice
    [javac] location: class BluetoothHandler
    [javac] public void deviceDiscovered(RemoteDevice remoteDevice1, DeviceClass arg1) {
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:76: cannot find symbol
    [javac] symbol  : class DeviceClass
    [javac] location: class BluetoothHandler
    [javac] public void deviceDiscovered(RemoteDevice remoteDevice1, DeviceClass arg1) {
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:114: cannot find symbol
    [javac] symbol  : class ServiceRecord
    [javac] location: class BluetoothHandler
    [javac] public void servicesDiscovered(int arg0, ServiceRecord[] arg1) {
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:40: cannot find symbol
    [javac] symbol  : variable LocalDevice
    [javac] location: class BluetoothHandler
    [javac] localDevice=LocalDevice.getLocalDevice();
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:41: cannot find symbol
    [javac] symbol  : variable DiscoveryAgent
    [javac] location: class BluetoothHandler
    [javac] localDevice.setDiscoverable(DiscoveryAgent.GIAC);
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:58: cannot find symbol
    [javac] symbol  : variable DiscoveryAgent
    [javac] location: class BluetoothHandler
    [javac] inquiry_started=agent.startInquiry(DiscoveryAgent.GIAC,this);
    [javac] ^
    [javac] Internal J2ME Polish class: C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildrealGenericDefaultColorPhonede_DEsourceBluetoothHandler.java:78: cannot find symbol
    [javac] symbol  : class RemoteDevice
    [javac] location: class BluetoothHandler
    [javac] RemoteDevice remoteDevice=remoteDevice1;
    [javac] ^
    [javac] 16 errors
    [javac] An internal class of J2ME Polish could not be compiled. Please try a clean rebuild by either calling "ant clean j2mepolish" or by removing the working directory "C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1buildreal".
    [javac] When an API-class was not found, you might need to define where to find the device-APIs. Following classpath has been used: [C:Userssivakumar.j1J2ME-Polishimportmmapi.jar;C:Userssivakumar.j1J2ME-Polishimportmidp-2.0.jar;C:Userssivakumar.j1J2ME-Polishimportcldc-1.1.jar;C:/Users/sivakumar.j1/J2ME-Polish/import/mmapi.jar;C:/Users/sivakumar.j1/J2ME-Polish/import/wmapi.jar;C:/Users/sivakumar.j1/J2ME-Polish/import/pdaapi.jar].
BUILD FAILED
C:Userssivakumar.j1j2me_polish_workspacetest_bluetooth1build.xml:107: Unable to compile source code for device [Generic/DefaultColorPhone]: Compile failed; see the compiler error output for details.

我无法解决这些问题。请帮我解决这个问题。

* *谢谢,问候,

从j2me polish-eclipse的设备选择过程中选择合适的设备。如果设备在j2me中没有蓝牙设置。以上错误可能会出现，所以请选择合适的设备，而不是"虚拟默认彩色手机"。

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