java - 无法使用java将文件从一个xml写入另一个xml

Question

实际上，我需要替换源 xml 中的一些标签并将文件写入新文件。这里我的代码工作正常，但现在无法打开输出 xml。在输出 xml 中我有一些泰米尔语单词。是不是文件打不开的原因

 public class dxml {

  public static  StringBuffer sb = new StringBuffer() ;

public static void main(String [] args) throws Exception {
    File xmlFile = new File("/home/dev702/Desktop/axl/Data Entry.xml");
    BufferedReader br = new BufferedReader(
                new FileReader("/home/dev702/Desktop/axl/Data Entry.xml"));
    String line = null;
    int linecount = 1; 
    FileWriter fw;
    BufferedWriter bw = null;
    fw = new FileWriter("/home/dev702/Desktop/axl/Data_Entry_OPT.xml") ;
    bw = new BufferedWriter(fw);
    while((line = br.readLine())!= null)
        {
           if(linecount > 2)
            {
                line = line.replaceAll("Data_x0020_Entry_x0020_Date",
                                                                "DataEntryDate");
             //bw.write(line);
            }    
         bw.write(line);
         linecount++;
         System.out.println(line);
      }
    bw.close();
    fw.close();
  }
}

Answer 1

如果您想将 XML 转换为另一种形式的 XML，您应该使用 XSLT 来实现这一点。 Java 支持转换两个文档...下面是如何实现此目的的代码片段。

前提实际上是您将原始 XML 放入文档中，设置要使用的 XSLT 并将其转换为另一个文档。

使用 XSLT 的范围不在本回复范围内。我建议使用 Altova 优秀的 XMLSpy 来测试您的 XSLT。

public class Mapper {


public Document convert(Document originalDocument, Resource xsltResource) throws TransformerException, ParserConfigurationException,
        JAXBException, IOException, SAXException {

    /**
     * You'll need to create your documentBuilder to build the new document.
     */
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    documentBuilderFactory.setNamespaceAware(true);
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();

    /**
     * Set up your transformer factory, you'll need to pass your XSLT file in as an inputstream
     * I've passed it in here as a method arg and it's a Spring Resource but you can do it however you like.
     */
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory
            .newTransformer(new StreamSource(xsltResource.getInputStream()));

    /**
     * Set the encoding to avoid headaches.
     */
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");


    /**
     * Create a BAoS to hold your original document.
     */
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    transformer.transform(new DOMSource(originalDocument), new StreamResult(os));

    /**
     * Do the transformation.
     */
    return documentBuilder.parse(new InputSource(new StringReader(os.toString("UTF-8"))));

   }
}