byte配列とStringの相互回転
2235 ワード
/***byte[]配列をStringタイプ**@param arg変換が必要なbyte[]配列*@param length変換が必要な配列長*@return変換後のString隊形*/private String toHexString(byte[]arg,int length){String result=new String();if(arg!=null){for(int i=0;i
/**
* String byte[]
*
* @param arg String
* @return byte[]
*/
private byte[] toByteArray(String arg) {
if (arg != null) {
/* 1. String ' '， String char */
char[] NewArray = new char[1000];
char[] array = arg.toCharArray();
int length = 0;
for (int i = 0; i < array.length; i++) {
if (array[i] != ' ') {
NewArray[length] = array[i];
length++;
}
}
/* char */
int EvenLength = (length % 2 == 0) ? length : length + 1;
if (EvenLength != 0) {
int[] data = new int[EvenLength];
data[EvenLength - 1] = 0;
for (int i = 0; i < length; i++) {
if (NewArray[i] >= '0' && NewArray[i] <= '9') {
data[i] = NewArray[i] - '0';
} else if (NewArray[i] >= 'a' && NewArray[i] <= 'f') {
data[i] = NewArray[i] - 'a' + 10;
} else if (NewArray[i] >= 'A' && NewArray[i] <= 'F') {
data[i] = NewArray[i] - 'A' + 10;
}
}
/* char 16 */
byte[] byteArray = new byte[EvenLength / 2];
for (int i = 0; i < EvenLength / 2; i++) {
byteArray[i] = (byte) (data[i * 2] * 16 + data[i * 2 + 1]);
}
return byteArray;
}
}
return new byte[]{};
}