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J2ME开发环境 – 系统环境检测程序

yoours2011-08-27 17:07:14 阅读 1187

简介一边听听音乐，一边写写文章。

J2ME环境安装
下载并安装如下程序，并按照以下顺序安装：
可在如下网址寻找
http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javame-419430.html

j2sdk-1_4_2_07-windows-i586-p.exe

j2me_wireless_toolkit-2_2-ml-windows.exe

j2me_wireless_toolkit-2_2-update_1-ml-windows.zip

创建自己的J2ME程序
启动开始菜单中 J2ME Wireless Toolkit 2.2 –> KToolbar
1. 点击新建项目 -> 输入项目名字以及MiDlet类名为HelloWord。
2. 打开 C:\WTK22\apps\HelloWord\src目录，创建Hello.java文件
3. 输入J2ME代码：
  import javax.microedition.midlet.*;
  import javax.microedition.lcdui.*;
  
  public class Hello extends MIDlet implements CommandListener
  {
  Display display;
  Form showForm;
  Command button;
  Font myFont;
  
  public Hello() {
          showForm = new Form("J2ME系统检测信息");
  }
  
  protected void destroyApp(boolean unconditional) {
  }
  
  protected void pauseApp() {
  }
  
  protected void startApp() {
  display = Display.getDisplay(this);
          myFont = Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_PLAIN,Font.SIZE_SMALL);
  
  // 系统信息
  StringItem str = new StringItem("\r\n", "平台名称:" + System.getProperty("microedition.platform"), Item.PLAIN);str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "MIDP版本:" + System.getProperty("microedition.profiles"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "CLDC或CDC版本:" + System.getProperty("microedition.configuration"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "默认的系统编码:" + System.getProperty("microedition.encoding"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "默认的区域设置:" + System.getProperty("microedition.locale"));str.setFont(myFont);showForm.append(str);
  
  // MMAPI相关
  str = new StringItem("\r\n", "MMAPI的版本:" + System.getProperty("microedition.media.version"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "支持混音:" + System.getProperty("supports.mixing"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "支持音频捕获:" + System.getProperty("supports.audio.capture"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "支持视频捕获:" + System.getProperty("supports.video.capture"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "支持录音:" + System.getProperty("supports.recording"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "音频编码格式:" + System.getProperty("audio.encodings"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "拍摄图片的编码格式:" + System.getProperty("video.snapshot.encodings"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "支持的流媒体格式:" + System.getProperty("streamable.contents"));str.setFont(myFont);showForm.append(str);
  
  //WMA相关
  str = new StringItem("\r\n", "SMS的服务中心:" + System.getProperty("wireless.messaging.sms.smsc"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "MMS的服务中心:" + System.getProperty("wireless.messaging.mms.mmsc"));str.setFont(myFont);showForm.append(str);
  
  // 其他
  str = new StringItem("\r\n", "Mobile 3D的版本:" + System.getProperty("microedition.m3g.version"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "蓝牙API的版本:" + System.getProperty("bluetooth.api.version"));str.setFont(myFont);showForm.append(str);
  
  str = new StringItem("\r\n", "FileConnection的版本:" + System.getProperty("microedition.io.file.FileConnection.version"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "PIM的版本:" + System.getProperty("microedition.pim.version"));str.setFont(myFont);showForm.append(str);
  
  str = new StringItem("\r\n", "file.separator:" + System.getProperty("file.separator"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.commports:" + System.getProperty("microedition.commports"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.hostname:" + System.getProperty("microedition.hostname"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.smartcardslots:" + System.getProperty("microedition.smartcardslots"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.location.version:" + System.getProperty("microedition.location.version"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.sip.version:" + System.getProperty("microedition.sip.version"));str.setFont(myFont);showForm.append(str);
  str = new StringItem("\r\n", "microedition.jtwi.version:" + System.getProperty("microedition.jtwi.version"));str.setFont(myFont);showForm.append(str);
  
  // 定义一个按钮
  button = new Command("Exit", Command.ITEM, 10);
  // 追加到form中
  showForm.addCommand(button);
  // 注册监听器
  showForm.setCommandListener(this);
  display.setCurrent(showForm);
  }
  
  // 监听处理
      public void commandAction(Command c, Displayable d)
      {
  if (c == button)
          {
              notifyDestroyed();
              destroyApp(true);
          }
      }
  }