Java Utililty Methods MD5

List of utility methods to do MD5

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Description

The list of methods to do MD5 are organized into topic(s).

Method

StringdigestMD5(String text)
Calculate the MD5 digest code for the text. 
return digest(text, "MD5");
Stringencryptmd5(String str)
encryptmd 
char[] a = str.toCharArray();
for (int i = 0; i < a.length; i++) {
    a[i] = (char) (a[i] ^ 'l');
String s = new String(a);
return s;
StringgenerateMD5ByContent(String content)
generate MD By Content 
return "";
StringgetFileMD5(String filePath)
get File MD 
try {
    MessageDigest md = MessageDigest.getInstance("MD5");
    md.update(Files.readAllBytes(Paths.get(filePath)));
    byte[] digest = md.digest();
    return DatatypeConverter.printHexBinary(digest).toLowerCase();
} catch (Exception e) {
    e.printStackTrace();
return null;
StringgetHexMd5(byte[] bytes)
Get a hex representation of the MD5 checksum of an array of bytes. 
MessageDigest digest = null;
try {
    digest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
digest.update(bytes);
String md5 = DatatypeConverter.printHexBinary(digest.digest()).toLowerCase();
return md5;
...
StringgetMD5(File file)
Get the MD5 Hash from the given File. 
String path = file.getAbsolutePath();
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(Files.readAllBytes(Paths.get(path)));
return DatatypeConverter.printHexBinary(md.digest()).toUpperCase();
StringgetMD5ByString(String orginalString)
get MD By String 
return orginalString;
StringgetMD5Checksum(String path)
get MD Checksum 
return null;
StringgetMd5DigestHex(final String content)
get Md Digest Hex 
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] digest = md.digest(content.getBytes());
return DatatypeConverter.printHexBinary(digest);
StringgetMD5Hex(byte[] digest)
get MD Hex 
StringBuilder result = new StringBuilder();
for (byte b : digest) {
    String hexString = Integer.toHexString(b & 0xff);
    if (hexString.length() == 1) {
        result.append("0");
    result.append(hexString);
return result.toString();