使用java對xxe漏洞進行修復的方法

xxe漏洞代碼：

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
String FEATURE = null;
// dbf.setExpandEntityReferences無法防止xxe
dbf.setExpandEntityReferences(false);
DocumentBuilder documentBuilder = dbf.newDocumentBuilder();
Document document = documentBuilder.parse(new File("poc.xml"));

xxe漏洞修復代碼：

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
String FEATURE = null;
FEATURE = "http://apache.org/xml/features/disallow-doctype-decl";
dbf.setFeature(FEATURE, true);
FEATURE = "http://xml.org/sax/features/external-general-entities";
dbf.setFeature(FEATURE, false);
FEATURE = "http://xml.org/sax/features/external-parameter-entities";
dbf.setFeature(FEATURE, false);
FEATURE = "http://apache.org/xml/features/nonvalidating/load-external-dtd";
dbf.setFeature(FEATURE, false);
dbf.setXIncludeAware(false);
// dbf.setExpandEntityReferences無法防止xxe
dbf.setExpandEntityReferences(false);
DocumentBuilder documentBuilder = dbf.newDocumentBuilder();