package cc.mrbird.febs.pay.util;
|
|
import java.security.MessageDigest;
|
|
/**
|
* User: rizenguo
|
* Date: 2014/10/23
|
* Time: 15:43
|
*/
|
public class MD5 {
|
private final static String[] hexDigits = {"0", "1", "2", "3", "4", "5", "6", "7",
|
"8", "9", "a", "b", "c", "d", "e", "f"};
|
|
/**
|
* 转换字节数组为16进制字串
|
* @param b 字节数组
|
* @return 16进制字串
|
*/
|
public static String byteArrayToHexString(byte[] b) {
|
StringBuilder resultSb = new StringBuilder();
|
for (byte aB : b) {
|
resultSb.append(byteToHexString(aB));
|
}
|
return resultSb.toString();
|
}
|
|
/**
|
* 转换byte到16进制
|
* @param b 要转换的byte
|
* @return 16进制格式
|
*/
|
private static String byteToHexString(byte b) {
|
int n = b;
|
if (n < 0) {
|
n = 256 + n;
|
}
|
int d1 = n / 16;
|
int d2 = n % 16;
|
return hexDigits[d1] + hexDigits[d2];
|
}
|
|
/**
|
* MD5编码
|
* @param origin 原始字符串
|
* @return 经过MD5加密之后的结果
|
*/
|
public static String MD5Encode(String origin) {
|
String resultString = null;
|
try {
|
resultString = origin;
|
MessageDigest md = MessageDigest.getInstance("MD5");
|
resultString = byteArrayToHexString(md.digest(resultString.getBytes("utf-8")));
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
return resultString;
|
}
|
|
}
|
