我刚开始学习如何使用Java处理/解析XML数据。我收到错误,“方法getNodeType()未定义类型NodeList ”,在我的for循环之后,包含:
if(n.getNodeType()== Node.ELEMENT_NODE){
错误的类型似乎我忘了导入一些东西,但我相信我得到了一切。我正在使用microsoft的XML示例,在以下链接中:
http://msdn.microsoft.com/en-us/library/ms762271(v=vs.85).aspx
提前致谢。
import java.io.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;
public class Files {
public static void main (String [] args) throws IOException, ParserConfigurationException{
String address = "/home/leo/workspace/Test/Files/src/file.xml";
File xmlFile = new File(address);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = factory.newDocumentBuilder();
Document doc = dBuilder.parse(xmlFile);
doc.getDocumentElement().normalize();
System.out.println(doc.getDocumentElement().getNodeName());
NodeList n = doc.getElementsByTagName("book id");
for (int temp = 0; temp < n.getLength(); temp++){
System.out.println(n.item(temp));
if (n.getNodeType() == Node.ELEMENT_NODE){
Element e = (Element) n;
System.out.println("author : " + e.getAttribute("author"));
System.out.println("title : " + e.getAttribute("title") );
System.out.println("genre : " + e.getAttribute("genre"));
System.out.println("price : " + e.getAttribute("price"));
System.out.println("publish_date : " + e.getAttribute("publish_date"));
System.out.println("description : " + e.getAttribute("description"));
}
}
}
}
答案 0 :(得分:1)
您正在getNodeType()
对象(n)上调用NodeList
。
您需要在Node
对象上调用此函数。示例:
n.item(temp).getNodeType();