w3c.dom组件xml解析实例
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w3c.dom组件xml解析实例
package com.yanek.demo.xml.test;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import com.sun.org.apache.xerces.internal.parsers.DOMParser;
public class DOMParserBean {
/**
* @param args
*/
public static void main(String[] args) {
/***********************************************************************
* <?xml version="1.0" encoding="UTF-8"?> <actions><action path="/test"
* class="com.mystruts.demo.LoginAction"><forward name="success"
* url="hello.jsp"/><forward name="fail" url="fail.jsp"/></action><action
* path="/user" class="com.mystruts.demo.UserAction"><forward
* name="success" url="list.jsp"/><forward name="fail" url="fail.jsp"/></action></actions>
*/
try {
Document document = DOMParserBean.getDocument("d://mystruts.xml");
NodeList actions = document.getElementsByTagName("action");
int size = actions.getLength();
Map result = new HashMap();
for (int i = 0; i < size; i++) {
Element xml_action = (Element) actions.item(i);
System.out.println("class=" + xml_action.getAttribute("class"));
System.out.println("path=" + xml_action.getAttribute("path"));
NodeList xml_forwards = xml_action
.getElementsByTagName("forward");
for (int j = 0; j < xml_forwards.getLength(); j++) {
Element forward = (Element) xml_forwards.item(j);
System.out.println(forward.getAttribute("name"));
System.out.println(forward.getAttribute("url"));
}
}
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private DOMParserBean() {
} // disallow instantiation
public static Document getDocument(String file) throws SAXException,
IOException {
DOMParser parser = new DOMParser();
parser.parse(new InputSource(new FileInputStream(file)));
return parser.getDocument();
}
}
输出:
class=com.mystruts.demo.LoginAction
path=/test
success
hello.jsp
fail
fail.jsp
class=com.mystruts.demo.UserAction
path=/user
success
list.jsp
fail
fail.jsp
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