Java Utililty Methods File Name Encode

List of utility methods to do File Name Encode

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Description

The list of methods to do File Name Encode are organized into topic(s).

Method

StringfileNameEncode(String fileName)
file Name Encode 
if (fileName == null)
    return null;
try {
    return new String(fileName.getBytes("gbk"), "ISO-8859-1");
} catch (Exception ex) {
    return fileName;
StringfileNameEncode(String str)
This encodes a string so that it may be used as a file name, converting the illegal characters to their Unicode HEX values. 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < str.length(); ++i) {
    char c = str.charAt(i);
    if (c < 32 || c > 126 || BAD_CHARS.indexOf(c) != -1) {
        sb.append("[").append(Integer.toHexString(c)).append("]");
    } else {
        sb.append(c);
return sb.toString();
StringfilenameEncode(String string)
Encodes the given string by removing chars which are illegal on most file systems. 
if (string != null) {
    string = string.replaceAll(ILLEGAL_FILENAME_CHARS_REGEX, "");
    if (string.length() > 255) {
        string = string.substring(0, 255);
return string;