Java 如何从internet将XML文件加载到字符串中

目前我有一个java应用程序，它将XML从本地文件加载到字符串中。我的代码如下所示

     private String xmlFile = "D:\\mylocalcomputer\\extract-2339393.xml";
     String fileStr = FileUtils.readFileToString(new File(xmlFile));

如果XML文件位于internet上的URL上，我如何获取该文件的内容

private String xmlURL = "http://mydomain.com/xml/extract-2000.xml";

XMLReader reader = XMLReaderFactory.createXMLReader();
reader.setContentHandler(handler);
reader.parse(new InputSource(new URL(xmlURL).openStream()));

有关SAX的更多信息，请检查

尝试SAX接口

private String xmlURL = "http://mydomain.com/xml/extract-2000.xml";

XMLReader reader = XMLReaderFactory.createXMLReader();
reader.setContentHandler(handler);
reader.parse(new InputSource(new URL(xmlURL).openStream()));

有关SAX检查的更多信息，请检查以下代码：

  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
  InputStream inputStream = new FileInputStream(new File("http://mydomain.com/xml/extract-2000.xml"));
  org.w3c.dom.Document doc = documentBuilderFactory.newDocumentBuilder().parse(inputStream);
  StringWriter stw = new StringWriter();
  Transformer serializer = TransformerFactory.newInstance().newTransformer();
  serializer.transform(new DOMSource(doc), new StreamResult(stw));
  stw.toString(); 

检查此代码：

  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
  InputStream inputStream = new FileInputStream(new File("http://mydomain.com/xml/extract-2000.xml"));
  org.w3c.dom.Document doc = documentBuilderFactory.newDocumentBuilder().parse(inputStream);
  StringWriter stw = new StringWriter();
  Transformer serializer = TransformerFactory.newInstance().newTransformer();
  serializer.transform(new DOMSource(doc), new StreamResult(stw));
  stw.toString(); 

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+1用于变压器。我建议使用StreamSource而不是DOMSource来提高性能。我建议使用StreamSource而不是DOMSource来提高性能。您好，我使用SAX，但不幸的是，我需要先将XML加载到字符串中并对其进行操作。您好，我使用SAX，但不幸的是，我需要先将XML加载到字符串中并对其进行操作。