From a2574dc9e3c432cda912618b9ce698726717faa5 Mon Sep 17 00:00:00 2001
From: xiaoyong931011 <15274802129@163.com>
Date: Mon, 06 Mar 2023 15:23:41 +0800
Subject: [PATCH] 上传图片压缩
---
src/main/java/cc/mrbird/febs/mall/controller/AdminMallGoodsController.java | 33 ++++++++++++++++++++++++++++-----
1 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/src/main/java/cc/mrbird/febs/mall/controller/AdminMallGoodsController.java b/src/main/java/cc/mrbird/febs/mall/controller/AdminMallGoodsController.java
index 9dd068a..c0a5ade 100644
--- a/src/main/java/cc/mrbird/febs/mall/controller/AdminMallGoodsController.java
+++ b/src/main/java/cc/mrbird/febs/mall/controller/AdminMallGoodsController.java
@@ -18,13 +18,17 @@
import cn.hutool.core.util.StrUtil;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import net.coobird.thumbnailator.Thumbnails;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import sun.misc.BASE64Encoder;
+import javax.imageio.ImageIO;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
@@ -50,15 +54,34 @@
new FebsResponse().message("上传文件为空");
}
- //文件加密
- BASE64Encoder base64Encoder =new BASE64Encoder();
- String base64EncoderImg = null;
+ String base64EncoderImg = "";
try {
- base64EncoderImg = base64Encoder.encode(file.getBytes());
- } catch (IOException e) {
+ //输出到BufferedImage
+ BufferedImage bufferedImage = Thumbnails.of(file.getInputStream())
+ // 图片大小（长宽）压缩比例 从0-1，1表示原图
+ .scale(1f)
+ // 图片质量压缩比例 从0-1，越接近1质量越好
+ .outputQuality(0.5f)
+ .asBufferedImage();
+ //对内存中的图片文件进行Base64处理
+ ByteArrayOutputStream newBaos = new ByteArrayOutputStream();//io流
+ ImageIO.write(bufferedImage, "jpg", newBaos);//写入流中
+ byte[] bytes = newBaos.toByteArray();//转换成字节
+ base64EncoderImg = new BASE64Encoder().encode(bytes);
+// base64EncoderImg = URLEncoder.encode(new BASE64Encoder().encode(bytes), "UTF-8");
+ } catch (Exception e) {
e.printStackTrace();
}
+ //文件加密
+// BASE64Encoder base64Encoder =new BASE64Encoder();
+// String base64EncoderImg = null;
+// try {
+// base64EncoderImg = base64Encoder.encode(file.getBytes());
+// } catch (IOException e) {
+// e.printStackTrace();
+// }
+
String imageFuffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
// String imageFuffix = ".png";
String imageNames = System.currentTimeMillis() + IdUtil.simpleUUID() + imageFuffix;
--
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