j2me 基於socke t通訊

伺服器端：

import java.io.DataInputStream;<br />import java.io.DataOutputStream;<br />import java.io.IOException;</p><p>import javax.microedition.io.Connector;<br />import javax.microedition.io.ServerSocketConnection;<br />import javax.microedition.io.SocketConnection;<br />import javax.microedition.lcdui.Command;<br />import javax.microedition.lcdui.CommandListener;<br />import javax.microedition.lcdui.Display;<br />import javax.microedition.lcdui.Displayable;<br />import javax.microedition.lcdui.Form;<br />import javax.microedition.lcdui.TextField;<br />import javax.microedition.midlet.MIDlet;<br />import javax.microedition.midlet.MIDletStateChangeException;</p><p>//ServerSocketMidlet.java<br />/**<br /> * @author boolean liuhao137310@163.com:<br /> * @version 建立時間：2009-2-19 下午02:39:51<br /> * @TODO 伺服器端<br /> */<br />public class ServerSocketMidlet extends MIDlet {</p><p>private Display display;</p><p>public ServerSocketMidlet() {<br />display = Display.getDisplay(this);<br />}</p><p>protected void startApp() throws MIDletStateChangeException {<br />display.setCurrent(new ServerForm("Server", display));<br />}</p><p>protected void destroyApp(boolean arg0) throws MIDletStateChangeException {<br />}</p><p>protected void pauseApp() {<br />}</p><p>}</p><p>/**<br /> *<br /> * SocketTest<br /> *<br /> * @author boolean boolean@live.cn 402662067<br /> * @version 建立時間：2009-2-19 下午05:13:32 TODO 伺服器端的介面<br /> */<br />class ServerForm extends Form implements Runnable, CommandListener {</p><p>private ServerSocketConnection serverSocketConn = null;</p><p>private SocketConnection socketConnection = null;</p><p>/** 發送資訊時候用的資料流 */<br />private DataOutputStream dos = null;</p><p>/** 接受時候用的資料流 */<br />private DataInputStream dis = null;</p><p>/** 要說的話 */<br />private TextField send = null;</p><p>/** 接受的話 */<br />private TextField recive = null;</p><p>private Display display;</p><p>public ServerForm(String title, Display display) {<br />super(title);</p><p>System.out.println("serverForm");<br />this.display = display;</p><p>send = new TextField("要說的話：", null, 34, TextField.ANY);<br />recive = new TextField("收到：", null, 34, TextField.ANY);</p><p>try {<br />serverSocketConn = (ServerSocketConnection) Connector<br />.open("socket://:9999");<br />socketConnection = (SocketConnection) serverSocketConn<br />.acceptAndOpen();<br />dis = socketConnection.openDataInputStream();<br />dos = socketConnection.openDataOutputStream();<br />} catch (IOException e) {<br />e.printStackTrace();<br />}</p><p>this.append(send);<br />this.append(recive);</p><p>this.addCommand(new Command("send", Command.OK, 1));<br />this.setCommandListener(this);<br />new Thread(this).start();<br />}</p><p>/**<br /> * 開闢新線程去接收資訊<br /> */<br />public void run() {<br />while (true) {<br />try {<br />recive.setString(dis.readUTF());<br />} catch (IOException e) {<br />e.printStackTrace();<br />} finally {<br />// try {<br />// dis.close();<br />// } catch (IOException e) {<br />// e.printStackTrace();<br />// }<br />}<br />}</p><p>}</p><p>public void commandAction(Command c, Displayable d) {<br />if (c.getLabel().equals("send")) {<br />try {<br />dos.writeUTF(send.getString());<br />} catch (IOException e) {<br />e.printStackTrace();<br />} finally {// 注意 千萬不可以在這裡關閉流，應該在程式結束時候關閉<br />// try {<br />// dos.close();<br />// } catch (IOException e) {<br />// e.printStackTrace();<br />// }<br />}<br />}<br />}</p><p>}<br />

 

用戶端：

import java.io.DataInputStream;<br />import java.io.DataOutputStream;<br />import java.io.IOException;</p><p>import javax.microedition.io.Connector;<br />import javax.microedition.io.SocketConnection;<br />import javax.microedition.lcdui.Command;<br />import javax.microedition.lcdui.CommandListener;<br />import javax.microedition.lcdui.Display;<br />import javax.microedition.lcdui.Displayable;<br />import javax.microedition.lcdui.Form;<br />import javax.microedition.lcdui.TextField;<br />import javax.microedition.midlet.MIDlet;<br />import javax.microedition.midlet.MIDletStateChangeException;</p><p>//ServerSocketMidlet.java<br />/**<br /> * @author boolean liuhao137310@163.com:<br /> * @version 建立時間：2009-2-19 下午02:39:51<br /> * @TODO<br /> */<br />public class ClientSocketMidlet extends MIDlet {</p><p>private Display display;</p><p>public ClientSocketMidlet() {<br />display = Display.getDisplay(this);<br />}</p><p>protected void startApp() throws MIDletStateChangeException {<br />display.setCurrent(new ClientForm("Client", display));<br />}</p><p>protected void destroyApp(boolean arg0) throws MIDletStateChangeException {<br />}</p><p>protected void pauseApp() {<br />}</p><p>}</p><p>class ClientForm extends Form implements Runnable, CommandListener {</p><p>private SocketConnection scClient = null;</p><p>/** 發送資訊時候用的資料流 */<br />private DataOutputStream dos = null;</p><p>/** 接受時候用的資料流 */<br />private DataInputStream dis = null;</p><p>/** 要說的話 */<br />private TextField send = null;</p><p>/** 接受的話 */<br />private TextField recive = null;</p><p>private Display display;</p><p>public ClientForm(String title, Display display) {<br />super(title);</p><p>System.out.println("clientForm");<br />this.display = display;</p><p>send = new TextField("要說的話：", null, 34, TextField.ANY);<br />recive = new TextField("收到：", null, 34, TextField.ANY);</p><p>try {//192.168.1.102 測得資料<br />scClient = (SocketConnection) Connector<br />.open("socket://127.0.0.1:9999");<br />dis = scClient.openDataInputStream();<br />dos = scClient.openDataOutputStream();<br />} catch (IOException e) {<br />e.printStackTrace();<br />}</p><p>this.append(send);<br />this.append(recive);<br />this.addCommand(new Command("send", Command.OK, 1));<br />this.setCommandListener(this);<br />new Thread(this).start();<br />}</p><p>public void run() {<br />while (true) {<br />try {<br />recive.setString(dis.readUTF());<br />} catch (IOException e) {<br />e.printStackTrace();<br />} finally {<br />//try {<br />//dis.close();<br />//} catch (IOException e) {<br />//e.printStackTrace();<br />//}<br />}<br />}</p><p>}</p><p>public void commandAction(Command c, Displayable d) {<br />if (c.getLabel().equals("send")) {<br />try {<br />dos.writeUTF(send.getString());<br />} catch (IOException e) {<br />e.printStackTrace();<br />} finally {<br />//try {<br />//dos.close();<br />//} catch (IOException e) {<br />//e.printStackTrace();<br />//}<br />}<br />}<br />}</p><p>}<br />