Lightweight XML processing component based on JDK built-in XML API, supporting DOM/SAX/StAX parsing, XPath queries, Bean binding, and XXE protection. 基于 JDK 内置 XML API 的轻量级 XML 处理组件，支持 DOM/SAX/StAX 解析、XPath 查询、Bean 绑定和 XXE 防护。