Here you can find the source of stringToMD5(String string)
public static String stringToMD5(String string)
//package com.java2s; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static String stringToMD5(String string) { byte[] hash; try {/*from ww w. j a v a 2 s . co m*/ hash = MessageDigest.getInstance("MD5").digest( string.getBytes("UTF-8")); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); return null; } catch (UnsupportedEncodingException e) { e.printStackTrace(); return null; } StringBuilder hex = new StringBuilder(hash.length * 2); for (byte b : hash) { if ((b & 0xFF) < 0x10) hex.append("0"); hex.append(Integer.toHexString(b & 0xFF)); } return hex.toString(); } }