想用java写个上位机接收esp8266的数据,但是接收不到

firing00 · 发表于 2017-2-28 09:04:06

如题写了一个tcp sever的发送和接收。发现接收不到。于是用网络调试助手测试，建立 client连接后，sever接收不到数据。不知道是不是接收要有固定格式？
程序如下

public static void main(String[] args) {
try{
ServerSocket ss = new ServerSocket(5566);
  Socket client =  ss.accept();
  DataInputStream inFromClient = new DataInputStream(client.getInputStream());
  DataOutputStream outTOClient = new DataOutputStream(client.getOutputStream());
  String str;
  double radius, area;
  boolean flag = true;
  while(flag) {
    str = inFromClient.readUTF();
    if(!"bye".equals(str)){
       radius = Double.parseDouble(str);
       System.out.println("收到的客户端数据：" + radius);
       outTOClient.writeUTF(str);
       outTOClient.flush();
       System.out.println("str:" + str +"已经发送到客户端");
    }else {
    flag = false;
    outTOClient.writeUTF("bye");
    outTOClient.flush();
    }
  }
  inFromClient.close();
  outTOClient.close();
  ss.close();
}catch(IOException e) {
e.printStackTrace();
}
}