domcountelement.java

来自「exemples for Simple API fro XML SAX」· Java 代码 · 共 34 行

package roseindia;

import org.w3c.dom.*;
import javax.xml.parsers.*;
import java.io.*;

public class DOMCountElement{
    public static void main(String[] args) {
    try {
      BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
      System.out.print("Enter File name: ");
      String xmlFile = bf.readLine();
      File file = new File(xmlFile);
      if (file.exists()){
    	  
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        // Create the builder and parse the file
        Document doc = factory.newDocumentBuilder().parse(xmlFile);
        
        System.out.print("Enter element name: ");
        String element = bf.readLine();
        NodeList nodes = doc.getElementsByTagName(element);
        System.out.println("xml Document Contains " + nodes.getLength() + "  elements.");
      }
      else{
        System.out.print("File not found!");
      }
    }
    catch (Exception ex) {
            System.out.println(ex);
        }
    }
}