[Java] 网络-02 TestSockClient / TestSockServer / 学生作品 : talkclient / talkserver

/*  范例名称：简单的client/server程序
 *  源文件名称：TestClient.java/TestServer.java
 *  要  点：
 *      1. Java Socket编程步骤
 *      2. Socket/ServerSocket类用法
 *      3. 通过Socket对象可以获取通信对方Socket的信息
 */

import java.net.*;
import java.io.*;

public class TestClient {
    public static void main(String args[]) {
        try {
            Socket s1 = new Socket("127.0.0.1", 8888);
            InputStream is = s1.getInputStream();
            DataInputStream dis = new DataInputStream(is);
            System.out.println(dis.readUTF());
            dis.close();
            s1.close();
        } catch (ConnectException connExc) {
            connExc.printStackTrace();
            System.err.println("服务器连接失败！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

/*  范例名称：简单的client/server程序
 *  源文件名称：TestClient.java/TestServer.java
 *  要  点：
 *      1. Java Socket编程步骤
 *      2. Socket/ServerSocket类用法
 *      3. 通过Socket对象可以获取通信对方Socket的信息
 */
import java.net.*;
import java.io.*;

public class TestServer {
    public static void main(String args[]) {
        try {       
            ServerSocket s = new ServerSocket(8888); // 8888是服务器端的端口号
            while (true) {
                Socket s1 = s.accept();
                OutputStream os = s1.getOutputStream();
                DataOutputStream dos = new DataOutputStream(os);
                dos.writeUTF("Hello," + s1.getInetAddress() + 
                        "port#" +s1.getPort() + "  bye-bye!");  //1964/...是本身客户端连上去，他选择的端口号 这个端口号是随便选的
                dos.close();
                s1.close();
            }
        }catch (IOException e) {
            e.printStackTrace();
            System.out.println("程序运行出错:" + e);          
        }
    }
}

import java.net.*;
import java.io.*;

public class TestSockClient {
    public static void main(String[] args) {
        InputStream is = null;
        OutputStream os = null;
        try {
            Socket socket = new Socket("localhost", 5888);
            is = socket.getInputStream();
            os = socket.getOutputStream();
            DataInputStream dis = new DataInputStream(is);
            DataOutputStream dos = new DataOutputStream(os);
            dos.writeUTF("hey");
            String s = null;
            if ((s = dis.readUTF()) != null)
                ;
            System.out.println(s);
            dos.close();
            dis.close();
            socket.close();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;
import java.net.*;

public class TestSockServer {
    public static void main(String[] args) {
        InputStream in = null;
        OutputStream out = null;
        try {
            ServerSocket ss = new ServerSocket(5888);
            Socket socket = ss.accept();
            in = socket.getInputStream();
            out = socket.getOutputStream();
            DataOutputStream dos = new DataOutputStream(out);
            DataInputStream dis = new DataInputStream(in);
            String s = null;
            if ((s = dis.readUTF()) != null) {
                System.out.println(s);
                System.out.println("from: " + socket.getInetAddress());
                System.out.println("Port: " + socket.getPort());
            }
            dos.writeUTF("hi，hello");
            dis.close();
            dos.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;
import java.net.*;

public class talkclient {
    public static void main(String args[]) {
        try {
            Socket socket = new Socket("127.0.0.1", 4700);
            BufferedReader sin = new BufferedReader(new InputStreamReader(
                    System.in));
            PrintWriter os = new PrintWriter(socket.getOutputStream());
            BufferedReader is = new BufferedReader(new InputStreamReader(
                    socket.getInputStream()));
            String readline;
            readline = sin.readLine();
            while (!readline.equals("bye")) {
                os.println(readline);
                os.flush();
                System.out.println("Client:" + readline);
                System.out.println("Server:" + is.readLine());
                readline = sin.readLine();
            }
            os.close();
            is.close();
            socket.close();
        } catch (Exception e) {
            System.out.println("Error" + e);
        }
    }
}

import java.io.*;
import java.net.*;
import java.applet.Applet;

public class talkserver {
    public static void main(String args[]) {
        try {
            ServerSocket server = null;
            try {
                server = new ServerSocket(4700);
            } catch (Exception e) {
                System.out.println("can not listen to:" + e);
            }
            Socket socket = null;
            try {
                socket = server.accept();
            } catch (Exception e) {
                System.out.println("Error:" + e);
            }
            String line;
            BufferedReader is = new BufferedReader(new InputStreamReader(
                    socket.getInputStream()));
            PrintWriter os = new PrintWriter(socket.getOutputStream());
            BufferedReader sin = new BufferedReader(new InputStreamReader(
                    System.in));
            System.out.println("Client:" + is.readLine());
            line = sin.readLine();
            while (!line.equals("bye")) {
                os.println(line);
                os.flush();
                System.out.println("Server:" + line);
                System.out.println("Client:" + is.readLine());
                line = sin.readLine();
            }

            is.close();
            os.close();
            socket.close();
            server.close();
        } catch (Exception e) {
            System.out.println("Error" + e);
        }
    }
}