1. 项目截图

　　

 

2. 服务端源码

　　

package test;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;public class MyServer {	// 服务器连接	public static ServerSocket cServerSocket;	// 连接	public static Socket cSocket;	// 端口	public static final int PORT = 8888;	/**	 * 主方法	 * 	 * @time 注释时间：2013-12-23 下午4:10:47	 * @param args	 */	public static void main ( String [ ] args ) {		DataInputStream dis = null;		DataOutputStream dos = null;			try {			cServerSocket = new ServerSocket (			                              PORT );			while ( true ) {				System.out.println ( "正在等待客户连接..." );				// 这里处于等待状态，如果没有客户端连接，程序不会向下执行				cSocket = cServerSocket.accept ( );				dis = new DataInputStream (				                              cSocket.getInputStream ( ) );				dos = new DataOutputStream (				                              cSocket.getOutputStream ( ) );				// 读取数据				String clientStr = dis.readUTF ( );				// 写出数据				dos.writeUTF ( "已收到信息:"				                              + clientStr );				System.out.println ( "---客户端已成功连接---" );				// 得到客户端的IP				System.out.println ( "客户端的IP="				                              + cSocket.getInetAddress ( ) );				// 得到客户端的端口号				System.out.println ( "客户端的端口号="				                              + cSocket.getPort ( ) );				// 得到本地端口号				System.out.println ( "本地服务器端口号="				                              + cSocket.getLocalPort ( ) );				System.out.println ( "客户端:"				                              + clientStr );				System.out.println ( "---------------------------------" );			}		}		catch ( IOException e ) {			e.printStackTrace ( );		}		finally {			try {				if (dis != null) {					dis.close ( );				}				if (dos != null) {					dos.close ( );				}			}			catch ( IOException e ) {				e.printStackTrace ( );			}		}	}}

 客户端源码

package com.example.cf_mysocketclient;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.view.WindowManager;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class MainActivity extends Activity {	// 发送按钮	private Button cButtonSend;	// 发送的内容	private EditText cEditTextContent;	// 接收的内容	private TextView cTextViewContent;	// Socket用于连接服务器获取输入输出流	private Socket cSocket;	// 服务器server/IP地址(当前PC的IP地址)	private final String ADDRESS = "10.0.2.2";	// 服务器端口	private final int PORT = 8888;	// 消息处理的线程	private Thread cThread;	// 消息的内容	private String cContent;	// 处理消息机制	Handler cHandler = new Handler ( ) {		@ Override		public void handleMessage ( Message msg ) {			switch ( msg.what ) {				case 0x01 :					cThread = new Thread ( ) {						@ Override						public void run ( ) {							super.run ( );							DataInputStream dis = null;							DataOutputStream dos = null;							try {								// 阻塞函数，正常连接后才会向下继续执行								cSocket = new Socket (								                              ADDRESS ,								                              PORT );								dis = new DataInputStream (								                              cSocket.getInputStream ( ) );								dos = new DataOutputStream (								                              cSocket.getOutputStream ( ) );								// 向服务器写数据								dos.writeUTF ( cEditTextContent								                              .getText ( )								                              .toString ( ) );								cContent = "I Say:";								cContent += cEditTextContent.getText ( )								                              .toString ( );								cContent += "\n";								cContent += "Server Say:";								// 读取服务器发来的数据								cContent += dis.readUTF ( );							}							catch ( UnknownHostException e ) {								e.printStackTrace ( );							}							catch ( IOException e ) {								e.printStackTrace ( );							}							finally {								try {									if (dis != null) {										dis.close ( );									}									if (dos != null) {										dos.close ( );									}								}								catch ( IOException e ) {									e.printStackTrace ( );								}								cHandler.sendEmptyMessage ( 0x02 );							}						}					};					cThread.start ( );					break;				case 0x02 :					cTextViewContent.setText ( cContent );					break;				default :					break;			}		}	};	@ Override	protected void onCreate ( Bundle savedInstanceState ) {		super.onCreate ( savedInstanceState );		this.getWindow ( )		                              .setFlags ( WindowManager.LayoutParams.FLAG_FULLSCREEN ,		                                                            WindowManager.LayoutParams.FLAG_FULLSCREEN );		this.requestWindowFeature ( Window.FEATURE_NO_TITLE );		setContentView ( R.layout.activity_main );		init ( );	}	/**	 * 初始化	 * 	 */	private void init ( ) {		cButtonSend = ( Button ) findViewById ( R.id.btn );		cEditTextContent = ( EditText ) findViewById ( R.id.et );		cTextViewContent = ( TextView ) findViewById ( R.id.tv );		cButtonSend.setOnClickListener ( new OnClickListener ( ) {			@ Override			public void onClick ( View v ) {				cHandler.sendEmptyMessage ( 0x01 );			}		} );	}}

 布局文件

当用户在编辑框中输入内容，便可以在TextView中显示出来

温馨提示  ：

　　 运行项目之前，一定要把服务端先启动 ，在运行客户端