Java tutorial
//package com.java2s; /* Copyright 2006 Ernest Micklei @ PhilemonWorks.com Licensed 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 java.io.InputStream; import javax.xml.xpath.XPath; import javax.xml.xpath.XPathExpressionException; import javax.xml.xpath.XPathFactory; import org.xml.sax.InputSource; public class Main { public static String valueForXPath(String xpath, InputStream inputStream) throws XPathExpressionException { /* * Report.systemProperty("javax.xml.parsers.DocumentBuilderFactory"); * Report.systemProperty("javax.xml.parsers.SAXParserFactory"); * Report.systemProperty("javax.xml.transform.TransformerFactory"); */ XPathFactory factory = XPathFactory.newInstance(); InputSource is = new InputSource(inputStream); XPath xp = factory.newXPath(); return xp.evaluate(xpath, is); } }