Read the XML file Dom4j

Read xml

public class Dom4jDemo {
    public static void main(String[] args)
        throws Exception{
        /*
         * Use Dom4j API to read XML file 
         */
        SAXReader reader=new SAXReader();
        File File = new new File ( "the Books.xml" );
         // use SAXReader read books.xml, if the reading is successful it will create a dom objects
         // The structure is tree. If the read fails or throws an exception: xml format, the file can not find 
        the Document DOC = reader.Read (File);
         // result of the check reading
         // System.out.println (doc.asXML ());     
         // found root element, access entry as 
        the element = the root doc.getRootElement ();
         // the root element is books    
         // System.out.println (root.asXML ()); 
         // goal: all title
         // 1. Get all the sub-elements the API 
        List <the element> List =root.elements ();
         // for (the Element E: List) {
         //     System.out.println (e.asXML ()); 
         // }
         // 2. get all the specified name sub-element 
        list = root.elements ( "book" );
         for (the element E: List) {
             // E is a book element
             // book has three sub-elements DATE author name
             // System.out.println (e.asXML ()); 
             // 3. find a first element of the sub-element matches 
            the element n-e.element = ( "name" );
             // System.out.println (n.asXML ());
             // 4. Get the text elements 
            String name = n.getTextTrim();
            System.out.println(name);         
            // E is a book element contains attributes
             // The element read attribute 
            String ID = e.attributeValue ( "ID" );
            System.out.println(id); 
        }    
    }    
}

public class Dom4jDemo2 {
    public static void main(String[] args) throws Exception {
        /*
         * Direct reading sub-element of the text
         * e.elementTextTrim("name");
         */
        File file=new File("books.xml");
        SAXReader reader = new SAXReader();
        Document doc=reader.read(file);
        Element root = doc.getRootElement ();
        List<Element> books=root.elements("book");
        for(Element book:books) {
            String name=
                book.elementTextTrim("name");
            System.out.println(name); 
        }        
    }
}