java代码 把excel转xml

以下是使用Java代码将Excel文件转换为XML文件的示例：

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

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class ExcelToXmlConverter {
    public static void main(String[] args) {
        try {
            // 读取Excel文件
            HSSFWorkbook workbook = new HSSFWorkbook(new File("input.xls"));

            // 创建XML文档
            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
            Document doc = docBuilder.newDocument();

            // 创建根元素
            Element rootElement = doc.createElement("data");
            doc.appendChild(rootElement);

            // 遍历Excel文件的所有工作表
            for (int i = 0; i < workbook.getNumberOfSheets(); i++) {
                Sheet sheet = workbook.getSheetAt(i);

                // 创建工作表元素
                Element sheetElement = doc.createElement("sheet");
                sheetElement.setAttribute("name", sheet.getSheetName());
                rootElement.appendChild(sheetElement);

                // 遍历工作表的所有行和列
                for (Row row : sheet) {
                    Element rowElement = doc.createElement("row");
                    sheetElement.appendChild(rowElement);

                    for (Cell cell : row) {
                        Element cellElement = doc.createElement("cell");
                        cellElement.setAttribute("column", Integer.toString(cell.getColumnIndex() + 1));
                        rowElement.appendChild(cellElement);

                        switch (cell.getCellType()) {
                            case Cell.CELL_TYPE_STRING:
                                cellElement.setTextContent(cell.getRichStringCellValue().getString());
                                break;
                            case Cell.CELL_TYPE_NUMERIC:
                                cellElement.setTextContent(Double.toString(cell.getNumericCellValue()));
                                break;
                            case Cell.CELL_TYPE_BOOLEAN:
                                cellElement.setTextContent(Boolean.toString(cell.getBooleanCellValue()));
                                break;
                            case Cell.CELL_TYPE_BLANK:
                                cellElement.setTextContent("");
                                break;
                            default:
                                break;
                        }
                    }
                }
            }

            // 将XML文档写入文件
            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            DOMSource source = new DOMSource(doc);
            StreamResult result = new StreamResult(new FileOutputStream("output.xml"));
            transformer.transform(source, result);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

以上代码使用了Apache POI库来读取Excel文件，使用了Java原生的DOM API来创建XML文档，并使用了Java原生的Transformer API将XML文档写入文件。请根据您的需要进行适当的修改。