JAXPParser.java 文件源码

private static SAXParser allowFileAccess(SAXParser saxParser, boolean disableSecureProcessing) throws SAXException {

        // if feature secure processing enabled, nothing to do, file is allowed,
        // or user is able to control access by standard JAXP mechanisms
        if (disableSecureProcessing) {
            return saxParser;
        }

        try {
            saxParser.setProperty(ACCESS_EXTERNAL_SCHEMA, "file");
            LOGGER.log(Level.FINE, Messages.format(Messages.JAXP_SUPPORTED_PROPERTY, ACCESS_EXTERNAL_SCHEMA));
        } catch (SAXException ignored) {
            // nothing to do; support depends on version JDK or SAX implementation
            LOGGER.log(Level.CONFIG, Messages.format(Messages.JAXP_UNSUPPORTED_PROPERTY, ACCESS_EXTERNAL_SCHEMA), ignored);
        }
        return saxParser;
    }