将String转化成HTML格式

public static String toHTMLString(String in) {
        StringBuffer out = new StringBuffer();
        for (int i = 0; in != null && i < in.length(); i++) {
            char c = in.charAt(i);
            if (c == '/'')
                out.append("&#039;");
            else if (c == '/"')
                out.append("&#034;");
            else if (c == '<')
                out.append("&lt;");
            else if (c == '>')
                out.append("&gt;");
            else if (c == '&')
                out.append("&amp;");
            else if (c == ' ')
                out.append("&nbsp;");
            else if (c == '/n')
                out.append("<br/>");
            else
                out.append(c);
        }
        return out.toString();
    }