生成MD5值
String str = "12345";
MessageDigest digest =MessageDigest.getInstance("MD5");
byte[] bs = digest.digest(str.getBytes());
BytesPrint("未经过散列的S:",bs);
String bb = "";
for(int i =0;i<bs.length;i++)
{
bb += byteHEX(bs[i]);
}
System.out.println(bb);
String aa = new String(bs, "iso-8859-1");//直接转化成字符串，省地x
1
String str = "12345";2
MessageDigest digest =MessageDigest.getInstance("MD5");3
byte[] bs = digest.digest(str.getBytes());4
BytesPrint("未经过散列的S:",bs);5
String bb = "";6
for(int i =0;i<bs.length;i++)7
{8
bb += byteHEX(bs[i]);9
}10
System.out.println(bb);11
12
String aa = new String(bs, "iso-8859-1");//直接转化成字符串，省地打印出来
82 7c cb 0e ea 8a 70 6c 4c 34 a1 68 91 f8 4e 7b
static public void BytesPrint(String string, byte[] bs)
{
System.out.print(string);
for (int i=0;i<bs.length;i++)
{
System.out.printf("%02x ",bs[i]);
}
System.out.println("");
}9
1
static public void BytesPrint(String string, byte[] bs)2
{3
System.out.print(string);4
for (int i=0;i<bs.length;i++)5
{6
System.out.printf("%02x ",bs[i]);7
}8
System.out.println("");9
}生成字符串
public static String byteHEX(byte ib)
{
char[] Digit ={ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
char[] ob = new char[2];
ob[0] = Digit[(ib >>> 4) & 0X0F];
ob[1] = Digit[ib & 0X0F];
String s = new String(ob);
return s;
}x
1
public static String byteHEX(byte ib)2
{3
char[] Digit ={ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };4
char[] ob = new char[2];5
ob[0] = Digit[(ib >>> 4) & 0X0F];6
ob[1] = Digit[ib & 0X0F];7
String s = new String(ob);8
return s;9
}
参考：