生成Mac地址,并制作mac.bin用于刷写
说明:
MAC地址由12位16进制的数字组成,同过申请或者购买可以获得一连串的Mac地址字符串,我们需要将这一连串的mac地址按照同意统一要求制作成单一的bin文件刷写,同时在刷写完成便删除此文件
通过提供起始mac地址,mac地址的个数以及mac文件命规则,批量生成mac.bin文件
采用java的写如流操作,批量生成.bin文件
为了便于测试,先采用string字符串写入文件进行查看测试
测试无误,在采用string转buye二进制数据进行写如文件
写入完成,同时提供测试批量打印输出写ru的bin文件是否符合要求(转码是否有误)
具体代码如下:
public class MacToBin {
// 文件路径
public static String filePath = "Mac";
// 统一起始文件名
public static String fileName = "Mac/mac";
// Mac地址递增数
public static int macCount = 300;
// 起始Mac地址
public static String macStart = "00:70:A4:00:00:00";
// 批量制作还是打印标志位
public static boolean makeMac = false;
public static void main(String[] args) {
// 制作
if (makeMac) {
// 文件存在判断
File file = new File(filePath);
if (file.exists()) {
if (file.isDirectory()) {
File[] files = file.listFiles();
// 遍历删除文件
for (int i = 0; i < files.length; i++) {
files[i].delete();
}
file.delete();
}
file.delete();
}
file.mkdir();
// 设定文件起始地址, 以及数量
makingMac();
} else {
//打印
printMac();
}
}
// 批量生成bin文件
private static void makingMac() {
String start = macStart.replaceAll(":", "");
BigInteger num = new BigInteger(start, 16);
BigInteger addNum = new BigInteger("1");
String result = "";
for (int i = 0; i < macCount; i++) {
try {
StringBuilder macName = new StringBuilder(fileName).append(i).append(".bin");
// 中间生成文件测试
// FileWriter writer = new FileWriter(new File(macName.toString()), true);
FileOutputStream fos = new FileOutputStream(macName.toString());
result = num.toString(16).toUpperCase();
for (int j = 12 - result.length(); j > 0; j--) {
result = "0" + result;
}
num = num.add(addNum);
fos.write(hexStringToBytes(getMacAdr(result)));
fos.close();
System.out.println(getMacAdr(result));
// 测试
// writer.write(getMacAdr(result));
// writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
System.out.println("finished");
}
// 批量打印测试代码段
public static void printMac() {
File file = new File(filePath);
if (!file.exists()) {
System.out.println("No file exist!");
return;
} else {
if (!file.isDirectory())
System.out.println("The file is no directory!");
else {
StringBuffer sb = new StringBuffer();
try {
// 批量打印
for (int i = 0; i < macCount; i++) {
StringBuilder macName = new StringBuilder(fileName).append(i).append(".bin");
File macfile = new File(macName.toString());
if (macfile.exists()) {
FileInputStream in = new FileInputStream(macfile);
byte[] temp = new byte[1];
while (in.read(temp) != -1) {
appendHexPair(temp[0], sb);
sb.append(":");
}
in.close();
}
String tempMac = sb.toString();
// 清空
sb.setLength(0);
// System.out.println(tempMac);
String macaddr = tempMac.substring(0, tempMac.length() - 1);
System.out.println(macaddr);
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("Print mafFile finished!");
}
}
}
private static void appendHexPair(byte bt, StringBuffer stringbuffer) {
char[] hexDigits = new char[]{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
char c0 = hexDigits[(bt & 240) >> 4];
char c1 = hexDigits[bt & 15];
stringbuffer.append(c0);
stringbuffer.append(c1);
}
private static String getMacAdr(String str) {
StringBuilder result = new StringBuilder("");
for (int i = 1; i <= 12; i++) {
result.append(str.charAt(i - 1));
// if (i % 2 == 0) {
// result.append(":");
// }
}
// return result.substring(0, 17);
return result.toString();
}
/**
* 16进制字符串转换为byte[]
*
* @param hexString
* @return
*/
public static byte[] hexStringToBytes(String hexString) {
if (hexString == null || hexString.equals("")) {
return null;
}
hexString = hexString.toUpperCase().replace(" ", "");
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] d = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
}
return d;
}
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
}
工厂mac地址刷写说明
检查/mnt/usb下是否存在(挂载U盘),是否存在MAC的文件夹
存在, 列出当前文件夹下所有文件,判断第一个文件是否存在
使用FileInputStream读流,获取字符串保存于tempMac中,同过裁剪获取最终的macaddr地址
获取本机存在的mac地址,CtvTvManager.getInstance().getEnvironment(mac_ethAddr),检查刷写和存在是否存在冲突(一样),一样,删除刷写的文件
不一样,执行刷写操作,CtvTvManager.getInstance().setEnvironment(mac_ethAddr, macaddr)
删除刷写的文件,避免刷写一样的mac地址
public static final String MAC = "MAC"; private static String mac_ethAddr = "macaddr"; static int UpgradeMAC() { int ret = 0; try { File listMacfile = new File(checkFileIsExist("/mnt/usb", Constant.MAC)); if (!listMacfile.exists()) { return EnumUpgradeStatus.E_UPGRADE_FILE_NOT_FOUND.ordinal(); } File macfile = listMacfile.listFiles()[0]; StringBuffer sb = new StringBuffer(); try { if (macfile.exists()) { FileInputStream in = new FileInputStream(macfile); byte[] temp = new byte[1]; while (in.read(temp) != -1) { appendHexPair(temp[0], sb); sb.append(":"); } in.close(); } else { ret = EnumUpgradeStatus.E_UPGRADE_FILE_NOT_FOUND.ordinal(); } String tempMac = sb.toString(); Log.d(TAG, "tempMac =" + tempMac); String macaddr = tempMac.substring(0, tempMac.length() - 1); Log.d(TAG, "macaddr =" + macaddr); String existsMac = CtvTvManager.getInstance().getEnvironment(mac_ethAddr); Log.d(TAG, "existsMac =" + existsMac); if (existsMac.trim().equals(macaddr) || existsMac.trim() == macaddr) { macfile.delete(); return ret; } if (!CtvTvManager.getInstance().setEnvironment(mac_ethAddr, macaddr)) { return ret; } String successMac = CtvTvManager.getInstance().getEnvironment(mac_ethAddr); if (!successMac.trim().equals(macaddr) && successMac.trim() != macaddr) { return ret; } macfile.delete(); macaddress = successMac; return EnumUpgradeStatus.E_UPGRADE_SUCCESS.ordinal(); } catch (FileNotFoundException e) { ret = EnumUpgradeStatus.E_UPGRADE_FILE_NOT_FOUND.ordinal(); e.printStackTrace(); return ret; } catch (IOException e2) { ret = EnumUpgradeStatus.E_UPGRADE_FAIL.ordinal(); e2.printStackTrace(); return ret; } } catch (Exception e3) { ret = EnumUpgradeStatus.E_UPGRADE_FAIL.ordinal(); e3.printStackTrace(); return ret; } }
