serversocket java socket inputstream显示无法读取的数据

Question

String serverName = "192.168.1.18";
int port = 10900;
Socket client = new Socket(serverName, port);
OutputStream outToServer = client.getOutputStream();
DataOutputStream out = new DataOutputStream(outToServer);
String message = "hello";
out.writeUTF(message );
InputStream is = client.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
System.out.println(br.readLine());

它显示以下输出： 连接端口10900上的192.168.1.18 刚刚连接到/192.168.1.18:10900 “N���`�\ "