Spring Boot文件转换器的java实现

import org.apache.poi.ss.usermodel.*;
import org.springframework.stereotype.Component;

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

@Component
public class FileConverter {

    public void convertToExcel(File inputFile, File outputFile) throws IOException {
        Workbook workbook = WorkbookFactory.create(inputFile);
        Sheet sheet = workbook.createSheet("Sheet1");

        // 读取输入文件的内容并写入Excel文件
        // ...

        FileOutputStream fileOutputStream = new FileOutputStream(outputFile);
        workbook.write(fileOutputStream);
        fileOutputStream.close();
        workbook.close();
    }

    public void convertToPdf(File inputFile, File outputFile) {
        // 实现将文件转换为PDF的逻辑
        // ...
    }

    // 其他转换方法的实现
    // ...

}