Here you can find the source of hasAttribute(Element element, String value)
public static boolean hasAttribute(Element element, String value)
//package com.java2s; /**/* www . ja v a 2 s . com*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import org.w3c.dom.Element; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; public class Main { public static boolean hasAttribute(Element element, String value) { NamedNodeMap attributes = element.getAttributes(); for (int i = 0; i < attributes.getLength(); i++) { Node node = attributes.item(i); if (value.equals(node.getNodeValue())) { return true; } } return false; } }