package com.XX.core.myutil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.security.MessageDigest;
public class Md5Util {
private static final Logger LOGGER = LoggerFactory.getLogger(Md5Util.class);
private static String compute(String inStr) {
try {
char[] charArray = inStr.toCharArray();
byte[] byteArray = new byte[charArray.length];
for (int i = 0; i < charArray.length; i++) {
byteArray[i] = (byte) charArray[i];
}
MessageDigest md5 = MessageDigest.getInstance("MD5");
byte[] md5Bytes = md5.digest(byteArray);
StringBuffer hexValue = new StringBuffer();
for (int i = 0; i < md5Bytes.length; i++) {
int val = ((int) md5Bytes[i]) & 0xff;
if (val < 16) {
hexValue.append("0");
}
hexValue.append(Integer.toHexString(val));
}
return hexValue.toString();
}catch (Exception e) {
LOGGER.error("MD5 Error...", e);
return "";
}
}
/**
* 按传入编码进行MD5加密
* @param charsetName
* @return
*/
private static String compute(String inStr, String charsetName){
try{
byte[] byteArray = inStr.getBytes(charsetName);
MessageDigest md5 = MessageDigest.getInstance("MD5");
byte[] md5Bytes = md5.digest(byteArray);
StringBuffer hexValue = new StringBuffer();
for (int i = 0; i < md5Bytes.length; i++) {
int val = ((int) md5Bytes[i]) & 0xff;
if (val < 16) {
hexValue.append("0");
}
hexValue.append(Integer.toHexString(val));
}
return hexValue.toString();
}catch (Exception e) {
LOGGER.error("MD5 Error...", e);
return "";
}
}
public static String encrypt(final String key) {
return compute(key);
}
/**
* 按传入编码进行MD5加密
* @param key
* @param charsetName
* @return
*/
public static String encrypt(final String key, final String charsetName){
return compute(key, charsetName);
}
public static void main(String[] args) {
System.out.println(Md5Util.encrypt("123456123456"));
}
}
