Socket通信

服务端代码：

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class SocketService {
	
	public static void main(String[] args) throws IOException {
		ServerSocket serverSocket = new ServerSocket(8090);
		System.out.println("服务器端启动监听中");
		Socket socket = serverSocket.accept();
		
		System.out.println("开始:" + socket);
		
		GetMessage gm = new GetMessage(socket);
		SendMessage sm = new SendMessage(socket);
		
		Thread gt = new Thread(gm);
		Thread st = new Thread(sm);
		
		gt.start();
		st.start();
	}
}

//接收消息
class GetMessage implements Runnable{
	BufferedReader in;
	public GetMessage(Socket socket) {
		try {
			in = new BufferedReader(new InputStreamReader(socket.getInputStream(), "utf-8"));
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void run() {
		String str = "";
		while(true){
			try {
				str = in.readLine();
			} catch (Exception e) {
				e.printStackTrace();
			}
			if(str.equals("q")){
				break;
			}
			System.out.println(str);
		}
	}
}

class SendMessage implements Runnable{
	PrintWriter out;
	BufferedReader is;
	
	public SendMessage(Socket socket) {
		try {
			out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"utf-8")), true);
			is = new BufferedReader(new InputStreamReader(System.in)); 
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	public void run() {
		String input = new String();
		while(true){
			try {
				input = is.readLine().trim();
			} catch (Exception e) {
				e.printStackTrace();
			}
			
			out.println(input);
			System.out.println("服务器说：" + input);
			out.flush();
		}
	}
	
}

客户端代码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

public class SocketClient {

public static void main(String[] args) {
try {
InetAddress addr = InetAddress.getByName("192.168.200.221");
Socket socket = new Socket(addr, 8090);
System.out.println("客户端发出socket：" + socket);

CGetMessage gm = new CGetMessage(socket);
CSendMessage sm = new CSendMessage(socket);

Thread gt = new Thread(gm);
Thread st = new Thread(sm);

gt.start();
st.start();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

}
}
//接收消息
class CGetMessage implements Runnable{
private Socket socket;
BufferedReader in;

public CGetMessage(Socket socket) {
this.socket = socket;
}

public void run() {
String str = new String();
while(true){
try {
in = new BufferedReader(new InputStreamReader(socket.getInputStream(), "utf-8"));
str = in.readLine();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("服务器回应说：" + str);
}
}

}

//发送消息
class CSendMessage implements Runnable{
private PrintWriter out;
private BufferedReader is;

public CSendMessage(Socket socket) {
try {
out = new PrintWriter(new OutputStreamWriter(socket.getOutputStream(), "utf-8"), true);
is = new BufferedReader(new InputStreamReader(System.in));
} catch (IOException e) {
e.printStackTrace();
}
}

public void run() {
String input = new String();
while(true){
try {
input = is.readLine().trim();
} catch (IOException e) {
e.printStackTrace();
}
out.println(input);
System.out.println("客户端说：" + input);
out.flush();
}
}