[Java] Socket/ServerSocket/Thread 控制台聊天程序--两人任意聊

//服务器端代码
import java.io.*;
import java.net.*;

public class ServerTest3{
public static void main(String[] args){
try{
//设置sever端的链接
ServerSocket s = new ServerSocket(8888);
Socket s1 = s.accept();//sever等待链接

//实例化输出流
OutputStream os = s1.getOutputStream();
DataOutputStream dos = new DataOutputStream(os);
//实例化输入流
InputStream is = s1.getInputStream();
DataInputStream dis = new DataInputStream(is);
//实例化两个线程的对象
Thread msr = new MyServerReader(dis);
Thread msw = new MyServerWriter(dos);
//启动线程
msr.start();
msw.start();
}
//捕获异常
catch(SocketException e){
System.out.println(e);
}catch(IOException e){
System.out.println(e);
}
}
}
//创建一个进程用来进行接收读取数据
class MyServerReader extends Thread{
private DataInputStream dis;
public MyServerReader (DataInputStream dis){
this.dis = dis;
}
public void run(){
String msg;
try{
while(true){
msg = dis.readUTF();
System.out.println("对方说:" + msg);
if(msg.equals("bye")){
System.out.println("对方下线,程序退出");
System.exit(0);
}
}
}catch(IOException e){
System.out.println(e);
}
}
}
//创建一个进程用来写入并发送数据
class MyServerWriter extends Thread{
private DataOutputStream dos;
public MyServerWriter(DataOutputStream dos){
this.dos = dos;
}
public void run(){
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isr);
String msg;
try{
while(true){
msg = br.readLine();
dos.writeUTF(msg);
if(msg.equals("bye")){
System.out.println("自己下线,程序退出");
System.exit(0);
}
}
}catch(IOException e){
System.out.println(e);
}
}
}
//客户端代码
import java.io.*;
import java.net.*;

public class ClientTest3{
public static void main(String[] args){
try{
//链接sever端
Socket s1 = new Socket("127.0.0.1",8888);
//实例化输入流
InputStream is = s1.getInputStream();
DataInputStream dis = new DataInputStream(is);
//实例化输出流
OutputStream os = s1.getOutputStream();
DataOutputStream dos = new DataOutputStream(os);
//实例化两个进程
Thread mcr = new MyClientReader(dis);
Thread mcw = new MyClientWriter(dos);
//启动两个进程
mcr.start();
mcw.start();
//捕获异常
}catch(SocketException e){
System.out.println(e);
}catch(IOException e){
System.out.println(e);
}
}
}
//创建一个进程用来进行接收读取数据
class MyClientReader extends Thread{
private DataInputStream dis;
public MyClientReader(DataInputStream dis){
this.dis = dis;
}
@Override
public void run(){
String msg;
try{
while(true){
msg = dis.readUTF();
System.out.println("对方说:"+msg);
if(msg.equals("bye")){
System.out.println("对方下线,程序退出");
System.exit(0);
}
}
}catch(IOException e){
System.out.println(e);
}
}
}
//创建一个进程用来写入并发送数据
class MyClientWriter extends Thread{
private DataOutputStream dos;
public MyClientWriter(DataOutputStream dos){
this.dos = dos;
}
@Override
public void run(){
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isr);
String msg;
try{
while(true){
msg = br.readLine();
dos.writeUTF(msg);
if(msg.equals("bye")){
System.out.println("自己下线,程序退出");
System.exit(0);
}
}
}catch(IOException e){
System.out.println(e);
}
}
}
打开两个控制台,先运行服务器端代码,再运行客户端代码,然后两端可以进行自由的通话