java之pdf-base64生成pdf

最新推荐文章于 2025-02-02 23:52:18 发布

捞起月亮的渔民小豪

最新推荐文章于 2025-02-02 23:52:18 发布

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文章标签： java pdf python

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import cn.hutool.core.date.DateUtil;
import sun.misc.BASE64Decoder;

import java.io.*;
import java.util.Calendar;

/**
 * @描述:
 * @Date: 2022/12/14 13:41
 * @Author: Duys
 **/
public class Base64ToPdfUtil {


    /**
     * Description: 将base64编码内容转换为Pdf
     *
     * @param base64Content 编码内容，文件的存储路径（含文件名）
     * @Author fuyuwei
     * Create Date: 2015年7月30日 上午9:40:23
     */
    public static Boolean base64StringToPdf(String base64Content, String filePath) throws IOException {
        BASE64Decoder decoder = new BASE64Decoder();
        BufferedInputStream bis = null;
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;
        try {
            byte[] bytes = decoder.decodeBuffer(base64Content);//base64编码内容转换为字节数组
            ByteArrayInputStream byteInputStream = new ByteArrayInputStream(bytes);
            bis = new BufferedInputStream(byteInputStream);
            File file = new File(filePath);
            File path = file.getParentFile();
            if (!path.exists()) {
                path.mkdirs();
            }
            fos = new FileOutputStream(file);
            bos = new BufferedOutputStream(fos);

            byte[] buffer = new byte[1024];
            int length = bis.read(buffer);
            while (length != -1) {
                bos.write(buffer, 0, length);
                length = bis.read(buffer);
            }
            bos.flush();
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        } finally {
            bis.close();
            fos.close();
            bos.close();
        }
        return true;
    }


    public static String createDateDir(String basePath) {
        String year = null;
        String month = null;
        String day = null;
        try {
            String dayStr = DateUtil.format(DateUtil.date(Calendar.getInstance()), "yyyy-MM-dd");
            String[] dayArr = dayStr.split("-");

            year = dayArr[0];
            month = dayArr[1];
            day = dayArr[2];

            String yearDir = basePath + File.separator + year;

            File yearFile = new File(yearDir);
            if (!yearFile.exists()) {
                yearFile.mkdirs();
            }

            String monthDir = yearDir + File.separator + month;
            File monthFile = new File(monthDir);
            if (!monthFile.exists()) {
                monthFile.mkdirs();
            }

            String dayDir = monthDir + File.separator + day;
            File dayFile = new File(dayDir);
            if (!dayFile.exists()) {
                dayFile.mkdirs();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //2020\10\15\
        return "/" + year + "/" + month + "/" + day + "/";
        //return  year + File.separator + month + File.separator + day + File.separator;
    }


}