From 8ae611538a5dfd3ad2872e5b1043376d1aa19a29 Mon Sep 17 00:00:00 2001
From: Administrator <admin>
Date: Fri, 26 Mar 2021 17:34:15 +0800
Subject: [PATCH] 包裹图片长宽返回
---
blade-service/blade-jfpts/src/main/java/org/springblade/jfpt/animalheat/util/ImageUtil.java | 39 +++++++++++++++++++++++++++++++++------
1 files changed, 33 insertions(+), 6 deletions(-)
diff --git a/blade-service/blade-jfpts/src/main/java/org/springblade/jfpt/animalheat/util/ImageUtil.java b/blade-service/blade-jfpts/src/main/java/org/springblade/jfpt/animalheat/util/ImageUtil.java
index eaa35ef..0617cf4 100644
--- a/blade-service/blade-jfpts/src/main/java/org/springblade/jfpt/animalheat/util/ImageUtil.java
+++ b/blade-service/blade-jfpts/src/main/java/org/springblade/jfpt/animalheat/util/ImageUtil.java
@@ -13,11 +13,13 @@
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
import static java.time.LocalDate.now;
/**
- * 二进制原始数据转换为图片工具类
+ * base64原始数据转换为图片工具类
*/
public class ImageUtil {
static BASE64Encoder encoder = new sun.misc.BASE64Encoder();
@@ -28,14 +30,14 @@
private static String PRF_MINIO_URL = "minio/jfpt/animalHeat";
/**
- * 二进制原始数据转换为图片
+ * base64原始数据转换为图片
* @param base64String
*/
public static String base64StringToImage(String base64String){
try {
- byte[] bytes1 = decoder.decodeBuffer(base64String);
- ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
- BufferedImage bi1 = ImageIO.read(bais);
+ byte[] bytes = decoder.decodeBuffer(base64String);
+ ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
+ BufferedImage bi = ImageIO.read(bais);
String UUID = DateUtil.today()+StringPool.SLASH+ StringUtil.randomUUID();
//可以是jpg,png,gif格式
File w2 = new File("D://"+PRE_URL+StringPool.SLASH+ UUID+".jpg");
@@ -47,7 +49,7 @@
parentFile.mkdirs();
}
//不管输出什么格式图片，此处不需改动
- ImageIO.write(bi1, "jpg", w2);
+ ImageIO.write(bi, "jpg", w2);
//返回图片路径
return PRF_MINIO_URL+ StringPool.SLASH+ UUID +StringPool.DOT+ "jpg";
} catch (IOException e) {
@@ -55,4 +57,29 @@
}
return null;
}
+
+
+ /**
+ * 获取base64原始数据图片的长宽
+ * @param base64String
+ */
+ public static Map<String,Object> getBase64ImageWidthAndHeight(String base64String){
+ Map<String, Object> map = new HashMap<>();
+ try {
+ //将base64字符串转换成二进制字节数组
+ byte[] bytes = decoder.decodeBuffer(base64String);
+ //二进制输入流
+ ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
+ //io读取图片输入流
+ BufferedImage bi = ImageIO.read(bais);
+ //封装数据
+ map.put("imgWidth",bi.getWidth());
+ map.put("imgHeight",bi.getHeight());
+ //返回
+ return map;
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ return null;
+ }
}
--
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