Android 使用socket实现两个真机之间的通信

来源：互联网发布：网络影视发行编辑：程序博客网时间：2024/05/01 18:08

1、使用Socket进行两个手机之间的通信需要安装两个不同的代码文件：服务端和客户端分别进行安装

2、创建局域网：两个手机同时连一个WiFi或者两个手机进行热点和WLAN连接

3、客户端连接另一个手机IP时把另一个手机的IP改成静态IP（3的第二种方法做这个步骤）

下面上代码分客户端的和服务端的，布局文件textview、Editview、Button不上代码了，不懂socket通信原理的可以在百度百科上查看

客户端：

1）、MianSocketClient.java

public class MianSocketClient extends AppCompatActivity{    private SocketClient client;    private TextView txt;    private EditText edit;    private Button btn;    @Override    protected void onCreate(@Nullable Bundle savedInstanceState)    {        super.onCreate ( savedInstanceState );        setContentView ( R.layout.activity_main );        txt=(TextView)findViewById ( R.id.textView );        edit=(EditText)findViewById ( R.id.edit );        btn=(Button)findViewById ( R.id.btn );        client=new SocketClient ();        //服务端的IP地址和端口号        client.clintValue (this,"10.0.3.15" ,6666);        //开启客户端接收消息线程        client.openClientThread ();        /**         * 发送消息         * */        btn.setOnClickListener ( new View.OnClickListener ( )        {            @Override            public void onClick(View v)            {                client.sendMsg ( edit.getText ().toString () );            }        } );        /**         *  接受消息         *         **/        SocketClient.mHandler=new Handler (  ){            @Override            public void handleMessage(Message msg)            {                txt.setText ( msg.obj.toString ());                Log.i ( "msghh",msg.obj.toString ());            }        };    }}

2)、SocketClient.java

public class SocketClient{    private Socket client;    private Context context;    private int port;           //IP    private String site;            //端口    private Thread thread;    public static Handler mHandler;    private boolean isClient=false;    private PrintWriter out;    private InputStream in;    private String str;    /**     * @effect 开启线程建立连接开启客户端     * */    public void openClientThread(){        thread=new Thread ( new Runnable ( )        {            @Override            public void run()            {                try {                    /**                     *  connect()步骤                     * */                    client=new Socket ( site,port );//                    client.setSoTimeout ( 5000 );//设置超时时间                    if (client!=null)                    {                        isClient=true;                        forOut();                        forIn ();                    }else {                        isClient=false;                        Toast.makeText ( context,"网络连接失败",Toast.LENGTH_LONG ).show ();                    }                    Log.i ( "hahah","site="+site+" ,port="+port );                }catch (UnknownHostException e) {                    e.printStackTrace ();                    Log.i ( "socket","6" );                }catch (IOException e) {                    e.printStackTrace ();                    Log.i ( "socket","7" );                }            }        } );        thread.start ();    }    /**     * 调用时向类里传值     * */    public void clintValue(Context context,String site,int port)    {        this.context=context;        this.site=site;        this.port=port;    }    /**     * @effect 得到输出字符串     * */    public void forOut()    {        try {            out=new PrintWriter ( client.getOutputStream () );        }catch (IOException e){            e.printStackTrace ();            Log.i ( "socket","8" );        }    }    /**     * @steps read();     * @effect 得到输入字符串     * */    public void forIn(){        while (isClient) {            try {                in=client.getInputStream ();                /**得到的是16进制数，需要进行解析*/                byte[] bt = new byte[50];                in.read ( bt );                str=new String ( bt,"UTF-8" );                } catch (IOException e) {}           if (str!=null) {               Message msg = new Message ( );               msg.obj =str ;               mHandler.sendMessage ( msg );            }        }    }    /**     * @steps write();     * @effect 发送消息     * */    public void sendMsg(final String str)    {        new Thread ( new Runnable ( )        {            @Override            public void run()            {                if (client!=null)                {                    out.print ( str );                    out.flush ();                    Log.i ( "outtt",out+"" );                }else                {                    isClient=false;                    Toast.makeText ( context,"网络连接失败",Toast.LENGTH_LONG ).show ();                }            }        } ).start ();    }}

服务端：

1）、MianActivity.java 之前取的名字没有改应该改成MainSocketServer.java

public class MainActivity extends AppCompatActivity{    private TextView txt;    private EditText edit;    private Button btn;    /**启动服务端端口     * 服务端IP为手机IP     * */    private SocketServer server=new SocketServer ( 6666 );    @Override    protected void onCreate(Bundle savedInstanceState)    {        super.onCreate ( savedInstanceState );        setContentView ( R.layout.activity_main );        txt = (TextView) findViewById ( R.id.textView );        edit = (EditText) findViewById ( R.id.edit );        btn = (Button) findViewById ( R.id.btn );        /**socket服务端开始监听*/        server.beginListen ( );        btn.setOnClickListener ( new View.OnClickListener ( )        {            @Override            public void onClick(View v)            {                /**socket发送数据*/                server.sendMessage ( edit.getText ().toString () );            }        } );        /**socket收到消息线程*/        SocketServer.ServerHandler=new Handler (  ){            @Override            public void handleMessage(Message msg)            {                txt.setText ( msg.obj.toString ());            }        };    }}

2)、SocketServer.java

public class SocketServer{    private ServerSocket server;    private Socket socket;    private InputStream in;    private String str=null;    private boolean isClint=false;    public static Handler ServerHandler;    /**     * @steps bind();绑定端口号     * @effect 初始化服务端     * @param port 端口号     * */    public SocketServer(int port){        try {            server= new ServerSocket ( port );            isClint=true;        }catch (IOException e){            e.printStackTrace ();        }           }    /**     * @steps listen();     * @effect socket监听数据     * */    public void beginListen()    {        new Thread ( new Runnable ( )        {            @Override            public void run()            {                try {                    /**                     * accept();                     * 接受请求                     * */                    socket=server.accept ();                    try {                        /**得到输入流*/                        in =socket.getInputStream();                        /**                         * 实现数据循环接收                         * */                        while (!socket.isClosed())                        {                            byte[] bt=new byte[50];                            in.read ( bt );                            str=new String ( bt,"UTF-8" );                  //编码方式  解决收到数据乱码                            if (str!=null&&str!="exit")                            {                                returnMessage ( str );                            }else if (str==null||str=="exit"){                                break;                                     //跳出循环结束socket数据接收                            }                            System.out.println(str);                        }                    } catch (IOException e) {                        e.printStackTrace ( );                        socket.isClosed ();                    }                } catch (IOException e) {                    e.printStackTrace ( );                    socket.isClosed ();                }            }        } ).start ();    }    /**     * @steps write();     * @effect socket服务端发送信息     * */    public void sendMessage(final String chat)    {        Thread thread=new Thread ( new Runnable ( )        {            @Override            public void run()            {                try {                    PrintWriter out=new PrintWriter ( socket.getOutputStream () );                    out.print ( chat );                    out.flush ();                } catch (IOException e) {                    e.printStackTrace ( );                }            }        } );        thread.start ();    }    /**     * @steps read();     * @effect socket服务端得到返回数据并发送到主界面     * */    public void returnMessage(String chat){        Message msg=new Message ();        msg.obj=chat;        ServerHandler.sendMessage ( msg );    }}

这样就完成了，如果再有疑问就问我吧

实现了两个真机的简单通信

之后动项目时候改完的新代码，可以两个真机都可以装这个一个软件

下载地址：https://github.com/845774766/socket

3 0