套接字Java中的IO流

Question

首先，我为我的英语道歉。我正在尝试使用Java建立客户端 - 服务器连接，但是从服务器获取响应时遇到问题。当我先关闭服务器时，客户端将收到服务器的响应。如果我先关闭客户端，没有任何反应。

以下是服务器的代码：

 BufferedReader input = new BufferedReader(new InputStreamReader(socket.getInputStream(),"8859_1"),1024);
            DataOutputStream sendToClient= new DataOutputStream(socket.getOutputStream());
            StringBuffer sb = new StringBuffer();
            sb.append(input.readLine());
            if(sb.toString().equalsIgnoreCase("lamoyenne")) {
                    System.out.println(Esclave.moyenneTarif());
                    sendToClient.writeBytes(String.valueOf(Esclave.moyenneTarif())); 
            }
            if(sb.toString().equalsIgnoreCase("nombrelieuentre100et200")) {
                    System.out.println(Esclave.nombreLieuEntre100et200());
                    sendToClient.writeBytes(String.valueOf(Esclave.nombreLieuEntre100et200())); 
            }
            else  {
                    System.out.println(Esclave.tarifParLieu(sb.toString()));
                    sendToClient.writeBytes(String.valueOf(Esclave.tarifParLieu(sb.toString())));
            }

以下是客户端的代码：

System.out.println("Type in: ");
            this.connexion = new Socket(InetAddress.getLocalHost(),44000);
            Writer output = new OutputStreamWriter(connexion.getOutputStream(), "8859_1");

            BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
            this.line = in.readLine();
            //DataOutputStream sendToServer  = new DataOutputStream(connexion.getOutputStream(),"8859_1");
            //sendToServer.writeBytes(this.line+'\n');

            output.write(this.line);
            output.flush();
            connexion.shutdownOutput();

            BufferedReader inFromServer = new BufferedReader(new InputStreamReader(connexion.getInputStream()));
            String temp = inFromServer.readLine();
            System.out.println("FROM SERVER: "+ temp);