package org.springblade.jfpt.animalheat.util;
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import jodd.util.StringPool;
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import org.springblade.core.tool.utils.DateUtil;
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import org.springblade.core.tool.utils.FileUtil;
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import org.springblade.core.tool.utils.StringUtil;
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import org.springframework.beans.factory.annotation.Value;
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import sun.misc.BASE64Decoder;
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import sun.misc.BASE64Encoder;
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import javax.imageio.ImageIO;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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import static java.time.LocalDate.now;
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/**
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* base64原始数据转换为图片工具类
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*/
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public class ImageUtil {
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static BASE64Encoder encoder = new sun.misc.BASE64Encoder();
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static BASE64Decoder decoder = new sun.misc.BASE64Decoder();
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private static String PRE_URL = "software/minio/data/jfpt/animalHeat";
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private static String PRF_MINIO_URL = "minio/jfpt/animalHeat";
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/**
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* base64原始数据转换为图片
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* @param base64String
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*/
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public static String base64StringToImage(String base64String){
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try {
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byte[] bytes = decoder.decodeBuffer(base64String);
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ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
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BufferedImage bi = ImageIO.read(bais);
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String UUID = DateUtil.today()+StringPool.SLASH+ StringUtil.randomUUID();
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//可以是jpg,png,gif格式
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File w2 = new File("D://"+PRE_URL+StringPool.SLASH+ UUID+".jpg");
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//判断父文件夹存在与否
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File parentFile = w2.getParentFile();
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if (!parentFile.exists()){
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//如果不存在，则创建
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parentFile.mkdirs();
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}
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//不管输出什么格式图片，此处不需改动
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ImageIO.write(bi, "jpg", w2);
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//返回图片路径
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return PRF_MINIO_URL+ StringPool.SLASH+ UUID +StringPool.DOT+ "jpg";
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 获取base64原始数据图片的长宽
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* @param base64String
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*/
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public static Map<String,Object> getBase64ImageWidthAndHeight(String base64String){
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Map<String, Object> map = new HashMap<>();
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try {
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//将base64字符串转换成二进制字节数组
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byte[] bytes = decoder.decodeBuffer(base64String);
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//二进制输入流
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ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
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//io读取图片输入流
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BufferedImage bi = ImageIO.read(bais);
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//封装数据
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map.put("imgWidth",bi.getWidth());
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map.put("imgHeight",bi.getHeight());
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//返回
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return map;
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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}
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