XML修改和删除

最新推荐文章于 2022-11-20 10:48:04 发布

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最新推荐文章于 2022-11-20 10:48:04 发布

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本文提供了使用Java进行XML文档操作的示例代码，包括如何添加和删除元素。通过这些示例，读者可以学习如何利用DocumentBuilderFactory和TransformerFactory来实现XML文档的修改。

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修改示例代码：

DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();

    DocumentBuilder builder=factory.newDocumentBuilder();

    org.w3c.dom.Document document=builder.parse("src/book.xml");

         Element book=document.createElement("book");
         book.setAttribute("id", "004");
         book.setAttribute("type", "动漫专题");

         Element bookName=document.createElement("bookName");
         bookName.setTextContent("铠甲勇士");

         Element bookPrice=document.createElement("bookPrice");
         bookPrice.setTextContent("20");

         Element bookAuthor=document.createElement("bookAuthor");
         bookAuthor.setTextContent("sb");

         book.appendChild(bookName);
         book.appendChild(bookPrice);
         book.appendChild(bookAuthor);

         document.getElementsByTagName("book").item(0).appendChild(book);

         TransformerFactory tran=TransformerFactory.newInstance();

         Transformer transformer=tran.newTransformer();
         Source source=new DOMSource(document);
         Result result=new StreamResult("src/book.xml");
         transformer.transform(source, result);
         System.out.println("add ok!!!");

删除示例代码：

DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
//03.获取文档对象
Document document = builder.parse("src/book.xml");
    NodeList list = document.getElementsByTagName("book");
   Element book = (Element) list.item(0);

    document.getDocumentElement().removeChild(book);

    TransformerFactory factory2=TransformerFactory.newInstance();
Transformer transformer = factory2.newTransformer();
Source source=new DOMSource(document);
Result result=new StreamResult("src/book.xml");
transformer.transform(source,result);
System.out.println("del success！");