XPath练习(1)

最新推荐文章于 2025-08-01 18:26:15 发布

myair2006

最新推荐文章于 2025-08-01 18:26:15 发布

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分类专栏： xml学习笔记文章标签： import string path null file class

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直接解析出body节点中间的文本

<html>
<head>
<title>
test
</title>
</head>
<body algin="center" stly="windows.back()">
liangshi
</body>
</html>

-------------------程序如下-------------------------------------------------------------------------------

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.xml.sax.SAXException;

public class Xpath_text {

/**
* XPath练习直接查找body元素
*/
public static void main(String[] args) {
  //得到工厂
  DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  DocumentBuilder builder = null;
  try {
   //得到builder
   builder = factory.newDocumentBuilder();
  } catch (ParserConfigurationException e) {
   e.printStackTrace();
  }
  //得到要解析的文件
  File f = new File("D://c++//test.xml");
  Document doc = null;
  try {
   //得到树
   doc = builder.parse(f);
  } catch (SAXException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
  //得到XPath的工厂
  XPathFactory xfactory = XPathFactory.newInstance();
  //得到path
  XPath path = xfactory.newXPath();
  try {
   //得到要解析出来的文本
   String body = path.evaluate("/html/body", doc);
   //在控制台打印出解析出来的结果
   System.out.println("得到的结果是："+body);
  } catch (XPathExpressionException e) {
   e.printStackTrace();
  }