Java XML Node to String getAttributeValue(Node node, String attrName)

Description

get Attribute Value

License

Apache License

Declaration

public static String getAttributeValue(Node node, String attrName) throws TransformerException 

Method Source Code

//package com.java2s;
/**//from w  w w .j  ava  2  s .  c o m
 * 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 javax.xml.transform.*;
import javax.xml.xpath.XPath;

import javax.xml.xpath.XPathExpressionException;

import org.w3c.dom.*;

public class Main {
    private Document document_;
    private XPath xpath_;

    public static String getAttributeValue(Node node, String attrName) throws TransformerException {
        String value = null;
        node = node.getAttributes().getNamedItem(attrName);
        if (node != null) {
            value = node.getNodeValue();
        }
        return value;
    }

    public String getNodeValue(String xql) throws XPathExpressionException {
        String value = xpath_.compile(xql).evaluate(document_);
        return "".equals(value) ? null : value;
    }
}

Related

1. convertToString(Node node)
2. createXmlString(Node node)
3. dump(Node node)
4. dumpNode(Node node)
5. elementToString(Node element)
6. getDescriptionOfNode(Node node)
7. getNodeAsInputStream(Node node)
8. getNodeAsStream(Node node)
9. getNodeSubtreeXMLString(final Node node)