Tcp: 从客户端传数据,服务端接收后,转成大写,客户端接收(自编)

 
import java.net.*;
import java.io.*;
class L
{
	public static void main(String args[]) throws Exception
	{
		Socket s=new Socket("192.168.1.101",407);//查
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bwOut=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
		BufferedReader brIn=new BufferedReader(new InputStreamReader(s.getInputStream()));
		String line=null;
		while((line=br.readLine())!=null)
		{
			if(line.equals("886"))
				break;
			bwOut.write(line);
			bwOut.newLine();
			bwOut.flush();
			String line1=brIn.readLine();
		    System.out.println(line1);
		}
		
		br.close();
		s.close();
	}
}

class L1
{
	public static void main(String args[]) throws Exception
	{
		ServerSocket ss=new ServerSocket(407);
		Socket s=ss.accept();
		String ip=s.getInetAddress().getHostAddress();
		System.out.println(ip+"......connected");
		
		BufferedReader brIn=new BufferedReader(new InputStreamReader(s.getInputStream()));
		BufferedWriter bwOut=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
		String line=null;
		while((line=brIn.readLine())!=null)
		{
			System.out.println(line);
			bwOut.write(line.toUpperCase());
			bwOut.newLine();
			bwOut.flush();

		}
		ss.close();
		s.close();
	}
}

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