Java: how to prevent ‘systemid’ #resolveentity (string PublicID, string systemid) in entityresolver from being absolute to the current working directory

I want to parse the following XML document to parse all entities in it:

<!DOCTYPE doc SYstem 'mydoc.dtd'>
 <doc>&title;</doc>

My entityresolver should get the external entity with the given system id from the database and execute the solution. See the following illustration:

private static class MyEntityResolver
 {
    public InputSource resolveEntity(String publicId,String systemId)
        throws SAXException,IOException
    {
        // At this point,systemId is always absolutized to the current working directory,// even though the XML document specified it as relative.
        // E.g. "file:///H:/mydoc.dtd" instead of just "mydoc.dtd"
        // Why???  How can I prevent this???

        SgmlEntity entity = findEntityFromDatabase(systemId);
        InputSource is = new InputSource(new ByteArrayInputStream(entity.getContents()));
        is.setPublicId(publicId);
        is.setSystemId(systemId);
        return is;
    }
 }

I try to use DOM (documentbuilder) and sax (xmlreader) to set the entity parser to myentityresolver (i.e. setentityresolver (New myentityresolver())), but the systemid #resolveentity (string PublicID, string systemid) in myentityresolver is always absolute to the current working directory

I also tried calling setfeature（“ http://xml.org/sax/features/resolve-dtd-uris ”,false); But it doesn't help anything

So how can I achieve my goal?

thank you!

Solution

Obviously, there is another interface called entityresolver2, which is an extension of the old entityresolver (talking about confusing names!)

In any case, I found that entityresolver2 implements what I want, that is, it will not make any changes to the systemid, so it will always be exactly what is specified in the XML document