Java学习【网络编程】

博客:http://blog.csdn.net/muyang_ren

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发送与接收线程
Recv.java

package lhy.socket.server;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.Socket;public class Recv implements Runnable{    String  str = null;    private Socket            client    = null;    private InputStreamReader recv      = null;    private BufferedReader    reader    = null;    public Recv(Socket c) {        this.client = c;    }    public void run() {        System.out.println("recv thread");        //System.out.flush();        try {            recv    =   new InputStreamReader(client.getInputStream());            reader  =   new BufferedReader(recv);            while (!client.isClosed()) {                str = reader.readLine();                System.out.println(str);            }            client.close();        } catch (IOException e) {            e.printStackTrace();        }    }}

Send.java

package lhy.socket.server;import java.io.IOException;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.Socket;import java.util.Scanner;public class Send implements Runnable{    private Socket client = null;    private static OutputStreamWriter send = null;    private static PrintWriter writer = null;    Scanner sin = null;    String  msgstr = null;    String  sendstr = null;    //c :客户端或者服务器套接字    //str : 存放客户端或者服务器发送过来的字符串:Server 或者 Client    public Send(Socket c,String str) {        this.client  = c;        this.sendstr = str;    }    public void run() {        System.out.println("send thread");        sin = new Scanner(System.in);        try {            send = new OutputStreamWriter(client.getOutputStream());            writer = new PrintWriter(send,true);            while (!client.isClosed()) {                msgstr = sin.nextLine();                writer.println(sendstr+client.getInetAddress()+":"+msgstr);            }        } catch (IOException e) {            System.out.println(e.getMessage());        }    }}

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服务器
TestServer.java

package lhy.socket.server;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;public class TestServer {    private static ServerSocket server;    private static final int TCP_PORT = 3002;    /**     * @param args     */    public static void main(String[] args)     {        System.out.println("server->致:hello world! 最伟大的程序!");        try {            //1.设置服务器            server = new ServerSocket(TCP_PORT);            System.out.println("服务器已经启动!");            while (true) {                //2.监听客户端,这里只实现了与一个客户端的通信                //【如果要和多个客户端进行通信,将连接的客户端通过监                //听将客户端保存到集合内,发送只开一个线程就够了,重                //写我send方法,比如实现发送时历遍集合发送;而服务器                //接收信息时就需要为每一次监听到的客户端开一个线程】                Socket client =server.accept();                //3.开接收线程                Recv readthread = new Recv(client);                new Thread(readthread,"Server-Read-Thread").start();                Send sendthread = new Send(client,"Server");                new Thread(sendthread,"Server-Send-Thread").start();            }         } catch (IOException e) {            System.out.println(e.getMessage());        }    }}

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客户端

package lhy.socket.server;import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;public class TestClient {    private static Socket clienSocket;    private final static String TCP_IP   ="127.0.0.1";     private final static int    TCP_PORT = 3002;    /**     * @param args     */    public static void main(String[] args) {        System.out.println("client->致:hello world! 最伟大的程序!");        try {            clienSocket = new Socket(TCP_IP, TCP_PORT);            Recv readthread = new Recv(clienSocket);            new Thread(readthread,"接收").start();            Send sendthread = new Send(clienSocket,"Client");            new Thread(sendthread,"发送").start();        } catch (UnknownHostException e) {            System.out.println(e.getMessage());        } catch (IOException e) {            System.out.println(e.getMessage());        }    }}