Android 一串字符串怎么转换成16进制数组

一串字符串怎么转换成16进制数组，什么方法啊。。求指点。，，，，，，，，，，，，，，，，，，，，，，，，，，，，

java :
/**
* 将字符串转为指定编码的16进制
*
* @param str
* @return
*/
public static String encode(String str) throws Exception {
String hexString = "0123456789ABCDEF";
//根据编码获取字节数组
byte[] bytes = str.getBytes("GBK");
StringBuilder sb = new StringBuilder(bytes.length * 2);
//将字节数组中每个字节拆解成2位16进制整数
for (int i = 0; i < bytes.length; i++) {
sb.append(hexString.charAt((bytes[i] & 0xf0) >> 4));
sb.append(hexString.charAt((bytes[i] & 0x0f) >> 0));
}
return sb.toString();
}

    //字符串转化数组
    String str = "0,1,2,3,4,5";

String[] arr = str.split(","); // 用,分割
System.out.println(Arrays.toString(arr)); // [0, 1, 2, 3, 4, 5]

/*String转byte数组*/
public static byte[] Stringtobytes(String s) {
byte[] present = {};
if (Integer.parseInt(s) >= 16) {
present = hexString2Bytes(Integer.toHexString(Integer.parseInt(s)));
}else if(Integer.parseInt(s) == 0){
present = new byte[]{0x00};
}else if(Integer.parseInt(s) == 1){
present = new byte[]{0x01};
}else if(Integer.parseInt(s) == 2){
present = new byte[]{0x02};
}else if(Integer.parseInt(s) == 3){
present = new byte[]{0x03};
}else if(Integer.parseInt(s) == 4){
present = new byte[]{0x04};
}else if(Integer.parseInt(s) == 5){
present = new byte[]{0x05};
}else if(Integer.parseInt(s) == 6){
present = new byte[]{0x06};
}else if(Integer.parseInt(s) == 7){
present = new byte[]{0x07};
}else if(Integer.parseInt(s) == 8){
present = new byte[]{0x08};
}else if(Integer.parseInt(s) == 9){
present = new byte[]{0x09};
}else if(Integer.parseInt(s) == 10){
present = new byte[]{0x0a};
}else if(Integer.parseInt(s) == 11){
present = new byte[]{0x0b};
}else if(Integer.parseInt(s) == 12){
present = new byte[]{0x0c};
}else if(Integer.parseInt(s) == 13){
present = new byte[]{0x0d};
}else if(Integer.parseInt(s) == 14){
present = new byte[]{0x0e};
}else if(Integer.parseInt(s) == 15){
present = new byte[]{0x0f};
}

return present;

}

可以参考一下下面的代码：

https://www.cnblogs.com/xiezunxu/articles/8968605.html

class Program
{
static void Main(string[] args)
{
string str = "Hello,C#!!!";
//调用。
string result = StringToHex16String(str);
Console.WriteLine(string.Format("将普通字符串:{0}转换成16进制字符串是:{1}", str, result));
Console.ReadKey();
}

///
/// 此方法用于将普通字符串转换成16进制的字符串。
///
/// 要转换的字符串。
///
public static string StringToHex16String(string _str)
{
//将字符串转换成字节数组。
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(_str);
//定义一个string类型的变量，用于存储转换后的值。
string result = string.Empty;
for (int i = 0; i < buffer.Length; i++)
{
//将每一个字节数组转换成16进制的字符串，以空格相隔开。
result += Convert.ToString(buffer[i], 16) + " ";
}
return result;
}
}