Node.ELEMENT_NODE點(diǎn)進(jìn)去會(huì)發(fā)現(xiàn)這是一個(gè),接口類型中的靜態(tài)常量類型為short

public static final short ELEMENT_NODE              = 1;
/**
 * The node is an <code>Attr</code>.
 */
public static final short ATTRIBUTE_NODE            = 2;
/**
 * The node is a <code>Text</code> node.
 */
public static final short TEXT_NODE                 = 3;
/**
 * The node is a <code>CDATASection</code>.
 */
public static final short CDATA_SECTION_NODE        = 4;
/**
 * The node is an <code>EntityReference</code>.
 */
public static final short ENTITY_REFERENCE_NODE     = 5;
/**
 * The node is an <code>Entity</code>.
 */
public static final short ENTITY_NODE               = 6;
/**
 * The node is a <code>ProcessingInstruction</code>.
 */
public static final short PROCESSING_INSTRUCTION_NODE = 7;
/**
 * The node is a <code>Comment</code>.
 */
public static final short COMMENT_NODE              = 8;
/**
 * The node is a <code>Document</code>.
 */
public static final short DOCUMENT_NODE             = 9;
/**
 * The node is a <code>DocumentType</code>.
 */
public static final short DOCUMENT_TYPE_NODE        = 10;
/**
 * The node is a <code>DocumentFragment</code>.
 */
public static final short DOCUMENT_FRAGMENT_NODE    = 11;
/**
 * The node is a <code>Notation</code>.
 */
public static final short NOTATION_NODE             = 12;
與w3c包中的beanNode類中的對象調(diào)用的getNodeTye(返回值也為short)進(jìn)行比較
 以此來進(jìn)行判斷 是否類型相同 大佬就大佬NB