使用dom4j 解析xml
阿新 • • 發佈:2017-06-18
package png servle dom4j read .cn cati nbsp test
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://www.example.org/web-app_2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.example.org/web-app_2_5 web-app_2_5.xsd" version="2.5"> <servlet> <servlet-name>MyServlet1</servlet-name> <servlet-class>cn.itheima.web.servlet1.MyServlet1</servlet-class> </servlet> <servlet-mapping> <servlet-name>MyServlet1</servlet-name> <url-pattern>/myServlet1</url-pattern> </servlet-mapping> <servlet> <servlet-name>MyServlet2</servlet-name> <servlet-class>cn.itheima.web.servlet1.MyServlet2</servlet-class> </servlet> <servlet-mapping> <servlet-name>MyServlet2</servlet-name> <url-pattern>/myServlet2</url-pattern> </servlet-mapping> </web-app>
TestDom4j.java
package cn.itheima.xml.dom4j; import java.util.List; import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Element; import org.dom4j.io.SAXReader; import org.junit.Test; public class TestDom4j { @Test public void testReadWebXML() { try { // 1.獲取解析器 SAXReader saxReader = new SAXReader(); // 2.獲得document文檔對象 Document doc = saxReader.read("src/cn/itheima/xml/schema/web.xml"); // 3.獲取根元素 Element rootElement = doc.getRootElement(); // System.out.println(rootElement.getName());//獲取根元素的名稱 // System.out.println(rootElement.attributeValue("version"));//獲取根元素中的屬性值 // 4.獲取根元素下的子元素 List<Element> childElements = rootElement.elements(); // 5.遍歷子元素 for (Element element : childElements) { //6.判斷元素名稱為servlet的元素 if ("servlet".equals(element.getName())) { //7.獲取servlet-name元素 Element servletName = element.element("servlet-name"); //8.獲取servlet-class元素 Element servletClass = element.element("servlet-class"); System.out.println(servletName.getText()); System.out.println(servletClass.getText()); } } } catch (DocumentException e) { e.printStackTrace(); } } }
使用dom4j 解析xml