用JAVA实现CSV文件到层次XML的转换

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class CSVToXMLConverter {
    public static void main(String[] args) {
        String csvFilePath = "input.csv";
        String xmlFilePath = "output.xml";

        try {
            BufferedReader csvReader = new BufferedReader(new FileReader(csvFilePath));

            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
            Document doc = docBuilder.newDocument();

            Element rootElement = doc.createElement("data");
            doc.appendChild(rootElement);

            String line;
            while ((line = csvReader.readLine()) != null) {
                String[] fields = line.split(",");

                Element recordElement = doc.createElement("record");
                rootElement.appendChild(recordElement);

                for (int i = 0; i < fields.length; i++) {
                    Element fieldElement = doc.createElement("field" + (i+1));
                    fieldElement.appendChild(doc.createTextNode(fields[i]));
                    recordElement.appendChild(fieldElement);
                }
            }

            csvReader.close();

            // 将XML文档写入文件
            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
            DOMSource source = new DOMSource(doc);
            StreamResult result = new StreamResult(new FileWriter(xmlFilePath));
            transformer.transform(source, result);

            System.out.println("转换完成，生成的XML文件路径为：" + xmlFilePath);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}