获取输入流中 STX 和 ETX 之间的字符串/字节

Question

I'm working on TCP socket but I realize it will only print the message ends with "\n". The problem is the server will send the message ends with ETX (without "\n") hence I'm having trouble to print the String. Is there any way to get data between the STX and ETX?

this.input = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    rxMsg = input.readLine();
                 
                    Log.v("InputStream",rxMsg);

Answer 1

Though I've not tested your code, the cause lies on your readLine function call. readLine does not finish its work until ETX is found.

Instead, try using read() or read(char[] cbuf, int off, int len) instead of readLine . These functions receives arbitrary length of bytes (same or shorter than what the sender had sent) sometimes, then you may want to call read again for receiving the remaining data.