Java创建XML并使用XSL创建HTML转义字符

Question

I have a bit of an issue

1. Get user data with java
2. Generate XML using JAXB
3. Create my XSL template
4. Use Java to generate the HTML

Now i have an issue with \\r and \\n and some other funky symbols. Should i parse the content of my xml with xml escapes or html escapes. The default Java escape utility class is doing a piss poor job of it and the custom class i found online isn't working either.

Would a good solution be to just replace \\n and \\r with <p> </p> or what html tag would be a good choice? Thank you!

A simple example would be my date value in my xml which was passed in as a string and all escapes were used.

Original: (same time, i don't remember which) - Mon, 29 Feb 2016 13:40:58 EST (-0500)

Escaped XML entry: - <Date>Mon&amp;#044; 29 Feb 2016 03&amp;#058;40&amp;#058;43 EST&amp;#040;&amp;#045;0500&amp;#041;</Date> <Date>Mon&amp;#044; 29 Feb 2016 03&amp;#058;40&amp;#058;43 EST&amp;#040;&amp;#045;0500&amp;#041;</Date>

Parsed HTML output: - Mon, 29 Feb 2016 03:40:43 EST(-0500) Mon, 29 Feb 2016 03:40:43 EST(-0500)

Something clearly went wrong in the encoding and decoding of the special characters. but when this is parsed into html

EDIT: I also have this junk which i don't even recognize was: 


EDIT: I fixed the date issue but it's still not encoding properly in parts.

public static String entityEncode(String text) {
    String result = text;
    if (result == null)
        return result;
    return StringEscapeUtils.escapeXml(XMLStringUtil.escapeControlChrs(result));
}

And the other class is:

public class XMLStringUtil {

    private static HashSet<Character> illegalChrSet = new HashSet<>();

    static {
        final String illegalChrs = "\u0000\u0001\u0002\u0003\u0004\u0005" +
                "\u0006\u0007\u0008\u000B\u000C\u000E\u000F\u0010\u0011\u0012" +
                "\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C" +
                "\u001D\u001E\u001F\uFFFE\uFFFF";

        for (int i=0; i < illegalChrs.length(); i++) {
            illegalChrSet.add(illegalChrs.charAt(i));
        }
    }

    public static String escapeControlChrs(String str) {
        if (str == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder(str.length());
        for (int i=0; i < str.length(); i++) {
            char chr = str.charAt(i);
            if (illegalChrSet.contains(chr)) {
                sb.append("\\x");
                sb.append(String.format("%04x", (int) chr));
            } else {
                sb.append(chr);
            }
        }

        return sb.toString();
    }

    public static String removeControlChrs(String str) {
        if (str == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder(str.length());
        for (int i=0; i < str.length(); i++) {
            char chr = str.charAt(i);
            if (! illegalChrSet.contains(chr)) {
                sb.append(chr);
            }
        }

        return sb.toString();
    }

but i still get this junk in the xml:

<Info>The origin domain used for comparison was: &#xD;
google.ca.ca&#xD;
blah blah blah&#xD;
</Info>

It occurs on new lines.

Answer 1

The problem is when you are encoding to xml itself. HTML is parsing the values properly. For html & is &. Please check how you are encoding to xml. XML should not be having all those ascii chars.

basically your string is having the character '/'. when encoded it is getting converted to for xml. This is not known to html. Either when creating xml replace '/' with / and when decoded html will automatically convert to '/'