Java Utililty Methods HTML Encode

List of utility methods to do HTML Encode

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Description

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

Method

StringhtmlEncode(String str)
html Encode 
if (str == null) {
    return "";
String tmp = str;
tmp = replace(tmp, "&", "&", false);
tmp = replace(tmp, "<", "&lt;", false);
tmp = replace(tmp, "\"", "&quot;", false);
tmp = replace(tmp, ">", "&gt;", false);
...
StringhtmlEncode(String str)
Replaces the chars '>', '<', and '&' with the sequences '>', '<', and '&'. 
StringBuilder result = null;
for (int i = 0, max = str.length(), delta = 0; i < max; i++) {
    char c = str.charAt(i);
    String replacement = null;
    if (c == '&') {
        replacement = "&amp;";
    } else if (c == '<') {
        replacement = "&lt;";
...
StringhtmlEncode(String string)
Escapes all characters that may cause a problem if a string is used directly in HTML. 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < string.length(); i++) {
    char c = string.charAt(i);
    if (c > 127 || c == '\"' || c == '\'' || c == '&' || c == '<' || c == '>' || c == '#' || c == ';')
        sb.append("&#").append((int) c).append(';');
    else
        sb.append(c);
return sb.toString();
StringHTMLEncode(String string)
Encode a string to be displayed in HTML

If fullHTML encode, then all unicode characters above 7 bits are converted into HTML entitites 

return HTMLEncode(string, false);
StringhtmlEncode(String string)
html Encode 
String encoded = replaceString(string, '&', "&amp;");
encoded = replaceString(encoded, '<', "&lt;");
return replaceString(encoded, '>', "&gt;");
StringHtmlEncode(String strInput)
Html Encode 
String input = strInput;
input = nullToEmpty(input);
if ("".equals(input)) {
    return "&nbsp;";
} else {
    input = Replace(input, "\"", "&quot;");
    input = Replace(input, "<", "&lt;");
    input = Replace(input, ">", "&gt;");
...
StringhtmlEncode(String strSrc)
html Encode 
if (strSrc == null)
    return "";
char[] arr_cSrc = strSrc.toCharArray();
StringBuffer buf = new StringBuffer(arr_cSrc.length);
char ch;
for (int i = 0; i < arr_cSrc.length; i++) {
    ch = arr_cSrc[i];
    if (ch == '<')
...
StringhtmlEncode(String strSrc)
html Encode 
if (strSrc == null) {
    return "";
char[] arrCsrc = strSrc.toCharArray();
StringBuilder buf = new StringBuilder(arrCsrc.length);
char ch;
for (char anArrCSrc : arrCsrc) {
    ch = anArrCSrc;
...
StringhtmlEncode(String text)
html Encode 
if (text == null || text.length() == 0) {
    return text;
int length = text.length();
StringBuffer ret = new StringBuffer(length * 12 / 10);
boolean isEncodeSpace = true;
int last = 0;
for (int i = 0; i < length; i++) {
...
StringhtmlEncode(String txt)
Encodes the given text to HTML save form. 
if (txt == null) {
    return "";
return txt.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;").replace("\"", "&quot;")
        .replace("'", "&#39;").replace("\r\n", "<br/>").replace("\n", "<br/>");