# 1.編輯線程類
~~~
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Socket;
public class ServerThread extends Thread{
private Socket socket;
public ServerThread(Socket socket){
this.socket=socket;
}
@Override
public void run() {
// 從socket中獲取字節輸入流對象
try (InputStream inputStream = socket.getInputStream()) {
//把字節輸入流包裝成緩存字節輸入流
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String msg;
while ((msg=bufferedReader.readLine())!=null){
System.out.println("服務器收到信息："+msg);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
~~~
# 2.編寫Server類
~~~
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) {
System.out.println("服務端啟動");
try {
// ServerSocket 對象進行服務器端口注冊
ServerSocket serverSocket = new ServerSocket(9999);
while (true){
new ServerThread(serverSocket.accept()).start();
}
}catch (Exception e){
e.fillInStackTrace();
}
}
}
~~~
3.客戶端
~~~
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class Client {
public static void main(String[] args) {
try {
// 創建socket鏈接請求
Socket socket = new Socket("127.0.0.1", 9999);
// 從socket中獲取字節輸出流對象
OutputStream socketOutputStream = socket.getOutputStream();
//把字節輸出流包裝成打印流
PrintStream printStream = new PrintStream(socketOutputStream);
// 掃描器
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("請說：");
printStream.println(scanner.nextLine());
printStream.flush();
}
} catch (Exception e) {
e.fillInStackTrace();
}
}
}
~~~
BIO是一個連接一個線程。
