**WIFI調試助手源碼(支持十六進制和ACSII發送與接收)
客戶端(我自己修改的工程文件,支持十六制的接收與發送,主要是通信協議,代碼簡單,可輕鬆改造爲上位機)
**
分爲操作分析和代碼分析。
1.代碼分析:
代碼1獲取連接熱點的IP地址,然後寫入:(這個代碼之後添加的,用戶可自行復制粘貼)
WifiManager wifiManager = (WifiManager) getApplicationContext(). getSystemService(Context.WIFI_SERVICE);//定義服務器
DhcpInfo dhcpInfo = wifiManager.getDhcpInfo();//獲取服務器信息
String IP = Formatter.formatIpAddress(dhcpInfo.gateway);//獲取服務器IP
edtIP = (EditText) this.findViewById(R.id.id_edt_inputIP);
edtIP.setText(IP+"");//
代碼2.建立連接
//建立連接按鈕的線程
private void connectThread() {
if (!isConnected) {
new Thread(new Runnable() {
public void run() {
Looper.prepare();
Log.i(tag, "---->> connect/close server!");
connectServer(edtIP.getText().toString(), edtPort.getText()//獲取輸入框的IP和端口號
.toString());
isConnected=true;
}
}).start();
} else {
try {
if (mSocket != null) {
mSocket.close();
mSocket = null;
Log.i(tag, "--->>重新連server.");
}
} catch (IOException e) {
e.printStackTrace();
}
btnConn.setText("斷開連接");
edtIP.setEnabled(true);
edtPort.setEnabled(true);
isConnected = false;
}
}
//與服務器連接
private void connectServer(String ip, String port) {
try {
Log.e(tag, "--->>start connect server !" + ip + "," + port);
mSocket = new Socket(ip, Integer.parseInt(port));
Log.e(tag, "--->>end connect server!");
OutputStream outputStream = mSocket.getOutputStream();
printWriter = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(outputStream,
Charset.forName("gb2312"))));
in = mSocket.getInputStream();
myHandler.sendEmptyMessage(2);
showInfo("連接服務器成功");
} catch (Exception e) {
isConnected = false;
showInfo("連接服務器失敗");
Log.e(tag, "exception:" + e.toString());
}
}
代碼3.十六進制與ACSII的切換
case R.id.buttonfasong:
if (sendon.getText().equals("16進制發送")) {
sendon.setText("HEX發送");
}
else {
sendon.setText("16進制發送");
}
break;
case R.id.buttonjieshou:
if (receiveon.getText().equals("16進制接收")) {
receiveon.setText("HEX接收");
}
else {
receiveon.setText("16進制接收");
}
break;
代碼4.十六進制接收於發送代碼(難點,也是開發中最重要的,這裏主要參考藍牙十六進制而改的)
private String getHexString() {
String s = edtSend.getText().toString();
StringBuilder sb = new StringBuilder();
for ( i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (('0' <= c && c <= '9') || ('a' <= c && c <= 'f') ||
('A' <= c && c <= 'F')) {
sb.append(c);
}
}
if ((sb.length() % 2) != 0) {
sb.deleteCharAt(sb.length());
}
return sb.toString();
}
private byte[] stringToBytes(String s) {
byte[] buf = new byte[s.length() / 2];
for (int i = 0; i < buf.length; i++) {
try {
buf[i] = (byte) Integer.parseInt(s.substring(i * 2, i * 2 + 2), 16);
} catch (NumberFormatException e) {
e.printStackTrace();
}
}
return buf;
}
public String bytesToString(byte[] bytes) {
try {
final char[] hexArray = "0123456789ABCDEF".toCharArray();
char[] hexChars = new char[bytes.length * 2];
StringBuilder sb = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
int v = bytes[i] & 0xFF;
hexChars[i * 2] = hexArray[v >>> 4];
hexChars[i * 2 + 1] = hexArray[v & 0x0F];
sb.append(hexChars[i * 2]);
sb.append(hexChars[i * 2 + 1]);
sb.append(' ');
}
return sb.toString();
}catch (Exception e) {
Log.e(tag, "--->> send failure!" + e.toString());
}
return null;
}
public String asciiToString(byte[] bytes) {
char[] buf = new char[bytes.length];
StringBuilder sb = new StringBuilder();
for (int i = 0; i < buf.length; i++) {
buf[i] = (char) bytes[i];
sb.append(buf[i]);
}
return sb.toString();
}
剩下的都是Button textview 的聲明瞭。
操作分析如下:
1.PC端測試
1.PC連接手機的熱點:
2.PC上輸入cmd指令:
2.接着輸入ipconfig 查看網絡信息
3.找WiFi的網絡 192.168.43.161
4.點擊窗口調試工具
5,配置參數
5.試驗如下
2.ESP8266 測試
1.AT+RST (復位)
2.AT+CWMODE=2 (服務器模式)
3.AT+CWSAP=“traffic”,“12345678”,11,0(“名字和密碼”)
4.AT+CWMODE=2(傳輸模式)
5.AT+CIPMUX=1
6.AT+CIPSERVER=1,9999 (9999爲端口號)
7.AT+CIFSR (查看ip)
8.AT+CIPSEND=1,6(0表示客戶端的地址,也可是其他數,主要看客戶端的數目;6表6個字節)
手機連接這個熱點,使用代碼1,獲取IP地址,再填入端口號就能使用了。