nuclear-api/src/main/java/com/iflytop/nuclear/utils/ImageUtils.java

package com.iflytop.nuclear.utils;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Base64;

/**
 * @author cool
 * @date 2023/7/10 15:53
 */
public class ImageUtils {
    /**
     * 图片转Base64码
     * @param src
     * @return
     */
    public static String convertImageToBase64Str(String src) {
        ByteArrayOutputStream baos = null;
        try {
            String suffix = src.substring(src.lastIndexOf(".") + 1);
            File imageFile = new File(src);
            BufferedImage bufferedImage = ImageIO.read(imageFile);
            baos = new ByteArrayOutputStream();
            ImageIO.write(bufferedImage, suffix, baos);
            byte[] bytes = baos.toByteArray();
            return Base64.getEncoder().encodeToString(bytes);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (baos != null) {
                    baos.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    /**
     * Base64码转图片
     * @param base64String
     * @param newSrc
     */
    public static void convertBase64StrToImage(String base64String, String newSrc) {
        ByteArrayInputStream bais = null;
        try {
            String suffix = newSrc.substring(newSrc.lastIndexOf(".") + 1);
            byte[] bytes = Base64.getDecoder().decode(base64String);
            bais = new ByteArrayInputStream(bytes);
            BufferedImage bufferedImage = ImageIO.read(bais);
            File imageFile = new File(newSrc);
            ImageIO.write(bufferedImage, suffix, imageFile);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (bais != null) {
                    bais.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}