java 怎么通过 socket服务端 传参数

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

public class echoserver
{
     public static void main（string[] args)
     {
         try{
             serversocket s = new serversocket（5050);
             socket incoming = s.accept（);
             
             bufferedreader in = new bufferedreader（new inputstreamreader（incoming.getinputstream（)));
             printwriter out = new printwriter（incoming.getoutputstream（), true /* autoflush */);

             out.println（"55 7f 00 00 01 30");
         
             boolean done = false;
             while （!done)
             {
                 string line = in.readline（);
                 if （line == null)
                     done = true;
                 else{
                     out.println（"you to server : " + line);
                     system.out.println（"client to you :"+line);
                     if （line.trim（).equals（"bye"))
                         done = true;
                 }

             }

             incoming.close（);
         }
         catch （exception e){
             system.out.println（e);
         }
     }

}