TCP / IP客户端错误地读取输入流字节数组

我正在创建一个Java客户端程序，它向服务器发送命令，服务器发回确认和响应字符串 .

响应以这种方式发送回客户端 - > server：cmd_string

服务器 - >客户端：ack_msg（06）

server - > client：response_msg

Client code

public static void readStream（InputStream in）{

byte[] messageByte = new byte[20];// assuming mug size -need to
                                        // know eact msg size ?
    boolean end = false;
    String dataString = "";
    int bytesRead = 0;

    try {
        DataInputStream in1 = new DataInputStream(in);
        // while ctr==2 todo 2 streams
        int ctr = 0;
        while (ctr < 2) {//counter 2 if ACK if NAK ctr=1 todo
            bytesRead = in1.read(messageByte);

            if (bytesRead > -1) {
                ctr++;
            }
            dataString += new String(messageByte, 0, bytesRead);

            System.out.println("\ninput byte arr "+ctr);
            for (byte b : messageByte) {
                char c=(char)b;
                System.out.print(" "+b);
            }
        }


        System.out.println("MESSAGE: " + dataString + "\n bytesread " + bytesRead + " msg length "
                + dataString.length() + "\n");
        char[] chars = dataString.toCharArray();
        ArrayList<String> hex=new ArrayList<>();
        // int[] msg ;
        for (int i = 0; i < chars.length; i++) {
            int val = (int) chars[i];
            System.out.print(" " + val);
        hex.add(String.format("%04x",  val));
        }
        System.out.println("\n"+hex);

    } catch (Exception e) {
        e.printStackTrace();
    }
    // ===

}

Output

client Socket created .. 
     response:

     input byte arr 1
     6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    input byte arr 2
     2 -77 67 79 -77 48 -77 3 -116 0 0 0 0 0 0 0 0 0 0 0
    MESSAGE: ##³CO³0³##
     (where # is some not supported special character )
     bytesread 9 msg length 10

     dec: 6 2 179 67 79 179 48 179 3 338
    hex: [0006, 0002, 00b3, 0043, 004f, 00b3, 0030, 00b3, 0003, 0152]
    bytes: 2 -77 67 79 -77 48 -77 3 -116 0 0 0 0 0 0 0 0 0 0 0 (bytes recieved in 2nd packet)
    connection closed

问题：我正在读取最后一个值不正确，我已经使用wireshark验证服务器已将响应发送回06 02 b3 43 4f b3 30 b3 03 8c我正在如何正确读取最后一个值 . 阅读流有问题吗？

EDIT

其余的响应被正确读取但最后一个字符应为8c但读为0152Hex

来自服务器的响应：06 02 b3 43 4f b3 30 b3 03 8c

通过程序阅读：[0006,0002,000b3,0043,004f，00b3,0030,00b3,0003,0152]

阅读最后一个字符的问题

EDIT 2

Response is received as 2 packets/streams

packet 1 byte arr :  6 (ACK)

packet 2 byte arr:  2 -77 67 79 -77 48 -77 3 -116 (response)

complete response read by client

dec: 6 2 179 67 79 179 48 179 3 338
  hex: [0006, 0002, 00b3, 0043, 004f, 00b3, 0030, 00b3, 0003, 0152]

谢谢