Java Utililty Methods HTML Escape

List of utility methods to do HTML Escape

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Description

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

Method

StringhtmlescapeAll(String s1)
Turns all characters into HTML entity equivalents 
if (s1 == null)
    return null;
StringBuffer buf = new StringBuffer();
int i;
for (i = 0; i < s1.length(); ++i) {
    char ch = s1.charAt(i);
    buf.append("&#" + ((int) ch) + ";");
return buf.toString();
StringhtmlEscapeBasicMarkup(final String text)
Performs necessary escaping to render arbitrary plain text as plain text without any markup. 
final StringBuilder buf = new StringBuilder(text.length() + 64);
for (int i = 0; i < text.length(); i++) {
    final char ch = text.charAt(i);
    switch (ch) {
    case '<':
        buf.append("&lt;");
        break;
    case '&':
...
StringHTMLEscapeBr(String original)
HTML Escape Br 
if (original == null)
    return "";
StringBuffer out = new StringBuffer("");
char[] chars = original.toCharArray();
for (int i = 0; i < chars.length; i++) {
    boolean found = true;
    switch (chars[i]) {
    case '\n':
...
StringBufferhtmlEscapeSpace(String uri)
html Escape Space 
StringBuffer sbURI = new StringBuffer((int) (uri.length() * 1.5));
char ch;
for (int i = 0; i < uri.length(); ++i) {
    ch = uri.charAt(i);
    if (ch == ' ') {
        sbURI.append("%20");
    } else if (ch == '\\') {
        sbURI.append('/');
...
StringhtmlUnescape(String safeHtml)
html Unescape 
if (safeHtml == null)
    return null;
if (safeHtml.indexOf("&lt;") != -1) {
    safeHtml = safeHtml.replace("&lt;", "<");
if (safeHtml.indexOf("&gt;") != -1) {
    safeHtml = safeHtml.replace("&gt;", ">");
if (safeHtml.indexOf("&quot;") != -1) {
    safeHtml = safeHtml.replace("&quot;", "\"");
if (safeHtml.indexOf("&#39;") != -1) {
    safeHtml = safeHtml.replace("&#39;", "'");
if (safeHtml.indexOf("&amp;") != -1) {
    safeHtml = safeHtml.replace("&amp;", "&");
return safeHtml;