Java Utililty Methods File Name Sanitize

List of utility methods to do File Name Sanitize

  1. HOME
  2. Java
  3. F
  4. File Name Sanitize

Description

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

Method

StringsanitizeFileName(String s)
Return a valid file name, replacing all invalid characters with '_'. 
if (s == null || s.length() <= 0)
    return s;
StringBuffer sb = new StringBuffer(s);
for (int i = 0; i < sb.length(); i++) {
    char c = sb.charAt(i);
    if (INVALID_FILE_NAME_CHARS.indexOf(c) >= 0)
        sb.setCharAt(i, '_');
return sb.toString();
StringsanitizeFilename(String toClean)
makes the string a more friendly filesystem path for java. 
if (toClean == null)
    return toClean; 
String toReturn = toClean.replace('\\', '/');
return toReturn;
StringsanitizeFilenameForWindows(String filename)
sanitize Filename For Windows 
String sanitized = filename;
for (String ic : ILLEGAL_FILENAME_CHARS) {
    sanitized = sanitized.replace(ic, "_");
return sanitized;
StringsanitizeForFileName(final String orig)
Converts a string into an other string that looks about as similar to the original as possible, while being save (and nice) to be used as a (part of a) file name. 
return orig.replaceAll("[^_\\-.0-9a-zA-Z]", "_");
StringsanitizeToValidFilename(String name)
sanitize To Valid Filename 
String[] invalidSymbols = new String[] { "\\", "/", ":", "*", "?", "\"", "<", ">", "|" };
String sanitizedName = name;
for (String currentSymbol : invalidSymbols) {
    sanitizedName = sanitizedName.replaceAll("[\\" + currentSymbol + "]", "_");
return sanitizedName;