英语背单词联网版本

				/*				 * SearchForm.java				 *				 * Created on 2004年1月13日, 下午7:03				 */								package handenglish;								import javax.microedition.midlet.*;				import javax.microedition.lcdui.*;				import java.util.*;								/**				 *				 * @author  Administrator 				 * @version				 */				public class SearchForm extends Form implements ReceiveListener,CommandListener,Runnable{				    private Receive m_Receive;				    private Midlet midlet;				    private TextField m_Input;				    private Command m_CmdSearch;				    private StringItem m_Result;				    private Vector m_Words;				    private boolean doSearch = false;				    private Thread searchThread;				    				    public SearchForm(Midlet midlet) {				        super( "单词查询" );				        this.midlet = midlet;				        m_Receive = new Receive(midlet);				        m_Receive.setReceiveListener( this );				        m_Input = new TextField( "输入查询单词","",60,TextField.ANY );				        m_CmdSearch = new Command( "查询",Command.OK,0 );				        m_Words = new Vector();				        m_Result = new StringItem( "","" );				        append( m_Input );				        addCommand( m_CmdSearch );				        addCommand( midlet.cmdBack );				        setCommandListener( this );				        startThread();				    }				    				    public void dataReceived(int cmd, int status) {				        m_Result.setLabel( "查询结果" );				        StringBuffer strs = new StringBuffer();				        for( int i = 0;i< m_Words.size();i++ ) {				            strs.append( m_Words.elementAt(i) );				            strs.append( "\n\n" );				        }				        if ( m_Words.size() == 0 )				            m_Result.setText( "您查的单词未找到！" );				        else				            m_Result.setText( strs.toString() );				    }				    				    public void dataReceiving(int cmd, int pos, int total, int send) {				    }				    				    public void errorReceived(int errno) {				        Alert alert = new Alert( "错误信息","通讯错误,请与服务提供商联系!错误号=" + errno ,null,AlertType.ERROR );				        alert.setTimeout( Alert.FOREVER );				        Display.getDisplay( midlet ).setCurrent( alert );				    }				    				    public void setCurState(int curState) {				    }				    				    public void startThread() {				        if(searchThread==null)				            searchThread=new Thread(this);				        searchThread.start();				    }				    public void stopThread() {				        searchThread = null;				    }				    public void commandAction(Command c, Displayable s) {				        if ( c == midlet.cmdBack && s == this ) {				            stopThread();				            midlet.nowDisplay( s,midlet.WIN_MENU );				        }				        else if( c == m_CmdSearch && s == this ) {				            if (  m_Input.getString().equals( null ) || m_Input.getString().equals( "" ) )				            {				                Alert alert = new Alert( "警告信息","请输入查询单词！" ,null,AlertType.WARNING );				                alert.setTimeout( Alert.FOREVER );				                Display.getDisplay( midlet ).setCurrent( alert );				                return;				            }				            removeResult();				            m_Result.setLabel( "正在查询中，请稍候..." );				            m_Result.setText("");				            append( m_Result );				            doSearch = true;				        }				    }				    				    private void removeResult() {				        for( int i=0;i< size();i++ ) {				            Item item = get( i );				            if ( item == m_Result )				                delete( i );				        }				    }				    				    public void run() {				        Thread curThread = Thread.currentThread();				        while ( searchThread == curThread ) {				            try {				                Thread.sleep( 200 );				                if ( doSearch ) {				                    m_Receive.queryWord( m_Input.getString(),m_Words );				                    doSearch = false;				                }				            }catch(Exception e){				                //System.out.println(e.toString());				            }				        }				    }				}