java map数据生成execl 代码

您好！生成Excel文件的Java代码可以使用Apache POI库中的API实现。在使用过程中，您可以将Java Map数据存储到Excel工作表的单元格中。以下是一个简单的例子代码：

import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class MapToExcelConverter {
    public static void main(String[] args) {
        Map<String, String> dataMap = new HashMap<>();
        dataMap.put("Name", "John Doe");
        dataMap.put("Age", "30");
        dataMap.put("Job", "Programmer");
        
        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet("Data");
        HSSFRow headerRow = sheet.createRow(0);
        headerRow.createCell(0).setCellValue("Field Name");
        headerRow.createCell(1).setCellValue("Field Value");
        
        int rowIndex = 1;
        for (Map.Entry<String, String> entry : dataMap.entrySet()) {
            HSSFRow dataRow = sheet.createRow(rowIndex++);
            dataRow.createCell(0).setCellValue(entry.getKey());
            dataRow.createCell(1).setCellValue(entry.getValue());
        }
        
        try (FileOutputStream outputStream = new FileOutputStream("data.xls")) {
            workbook.write(outputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }

        System.out.println("Excel file generated successfully!");
    }
}

希望对您有所帮助！