From bc2da7908a227c09e5cc7b6d8dab3e9c94b784a1 Mon Sep 17 00:00:00 2001
From: zhanghua <314079846@qq.com>
Date: 星期二, 12 十二月 2023 22:18:18 +0800
Subject: [PATCH] 图片压缩及bug修改
---
ycl-common/src/main/java/com/ycl/service/oss/impl/OssServiceImpl.java | 117 ++++++++++++++++++++++++++++++++++++++++++++--------------
1 files changed, 89 insertions(+), 28 deletions(-)
diff --git a/ycl-common/src/main/java/com/ycl/service/oss/impl/OssServiceImpl.java b/ycl-common/src/main/java/com/ycl/service/oss/impl/OssServiceImpl.java
index bc84db9..3a24a08 100644
--- a/ycl-common/src/main/java/com/ycl/service/oss/impl/OssServiceImpl.java
+++ b/ycl-common/src/main/java/com/ycl/service/oss/impl/OssServiceImpl.java
@@ -9,12 +9,18 @@
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.InputStream;
+import javax.imageio.IIOImage;
+import javax.imageio.ImageIO;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.ImageWriter;
+import javax.imageio.stream.ImageOutputStream;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.*;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
+import java.util.Arrays;
import java.util.Date;
@Service
@@ -38,12 +44,20 @@
try {
// 鑾峰彇鏂囦欢鐨勫悕绉�
String fileName = "sczf/" + file.getOriginalFilename();
+ byte[] newImg = file.getBytes();
+ String originalFilename = file.getOriginalFilename();
+ String fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
+ if (".png".equalsIgnoreCase(fileType) || ".jpg".equalsIgnoreCase(fileType) || ".jpeg".equalsIgnoreCase(fileType)) {
+ if (file.getSize() > 2097152) {
+ newImg = compressUnderSize(file.getBytes(), 2097152);
+ }
+ }
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
// 璋冪敤oss鐨勬柟娉曞疄鐜伴暱浼�
// 绗竴涓弬鏁� bucketName
// 绗簩涓弬鏁� 涓婁紶鍒皁ss鐨勬枃浠惰矾寰勫拰鏂囦欢鍚嶇О
- ossClient.putObject(bucketName, fileName, new ByteArrayInputStream(file.getBytes()), objectMetadata);
+ ossClient.putObject(bucketName, fileName, new ByteArrayInputStream(newImg), objectMetadata);
// 鍏抽棴OSSClient銆�
ossClient.shutdown();
// 鎶婁笂浼犵殑鏂囦欢璺緞杩斿洖 锛堟墜鍔ㄦ嫾鎺ワ級
@@ -58,6 +72,60 @@
// e.printStackTrace();
return null;
}
+ }
+
+ /**
+ * 鎸夌収 瀹介珮 姣斾緥鍘嬬缉
+ *
+ * @param imgIs 寰呭帇缂╁浘鐗囪緭鍏ユ祦
+ * @param scale 鍘嬬缉鍒诲害
+ * @param out 杈撳嚭
+ * @return 鍘嬬缉鍚庡浘鐗囨暟鎹�
+ * @throws IOException 鍘嬬缉鍥剧墖杩囩▼涓嚭閿�
+ */
+ public byte[] compress(byte[] srcImgData, double scale) throws IOException {
+ BufferedImage bi = ImageIO.read(new ByteArrayInputStream(srcImgData));
+ int width = (int) (bi.getWidth() * scale); // 婧愬浘瀹藉害
+ int height = (int) (bi.getHeight() * scale); // 婧愬浘楂樺害
+
+ Image image = bi.getScaledInstance(width, height, Image.SCALE_SMOOTH);
+ BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+
+ Graphics g = tag.getGraphics();
+ g.setColor(Color.RED);
+ g.drawImage(image, 0, 0, null); // 缁樺埗澶勭悊鍚庣殑鍥�
+ g.dispose();
+
+ ByteArrayOutputStream bOut = new ByteArrayOutputStream();
+ ImageIO.write(tag, "JPEG", bOut);
+
+ return bOut.toByteArray();
+ }
+
+ /**
+ * 灏嗗浘鐗囧帇缂╁埌鎸囧畾澶у皬浠ュ唴
+ *
+ * @param srcImgData 婧愬浘鐗囨暟鎹�
+ * @param maxSize 鐩殑鍥剧墖澶у皬
+ * @return 鍘嬬缉鍚庣殑鍥剧墖鏁版嵁
+ */
+ public byte[] compressUnderSize(byte[] srcImgData, long maxSize) {
+ double scale = 0.9;
+ byte[] imgData = Arrays.copyOf(srcImgData, srcImgData.length);
+
+ if (imgData.length > maxSize) {
+ do {
+ try {
+ imgData = compress(imgData, scale);
+
+ } catch (IOException e) {
+ throw new IllegalStateException("鍘嬬缉鍥剧墖杩囩▼涓嚭閿欙紝璇峰強鏃惰仈绯荤鐞嗗憳锛�", e);
+ }
+
+ } while (imgData.length > maxSize);
+ }
+
+ return imgData;
}
private byte[] readInputStream(InputStream inStream) throws Exception {
@@ -101,6 +169,9 @@
String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
+ DateTimeFormatter dtf2 = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+ System.out.println("鍑嗗涓婁紶--" + dtf2.format(LocalDateTime.now()));
// 鍒涘缓OSSClient瀹炰緥銆�
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
// 涓婁紶鏂囦欢娴�
@@ -109,32 +180,21 @@
LocalDate date = LocalDate.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
String fileName = "sczf/" + date.format(formatter) + RandomUtils.generateRandomInt(8) + "." + ext;
- System.out.println("鏂囦欢鍦板潃锛�" + fileName);
+
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentType(getcontentType(ext));
- // 璋冪敤oss鐨勬柟娉曞疄鐜伴暱浼�
- // 绗竴涓弬鏁� bucketName
- // 绗簩涓弬鏁� 涓婁紶鍒皁ss鐨勬枃浠惰矾寰勫拰鏂囦欢鍚嶇О
- ossClient.putObject(bucketName, fileName, inputStream, objectMetadata);
- // 鍏抽棴OSSClient銆�
- ossClient.shutdown();
- // 鎶婁笂浼犵殑鏂囦欢璺緞杩斿洖 锛堟墜鍔ㄦ嫾鎺ワ級
- // 杩欓噷璁剧疆鍥剧墖鏈夋晥鏃堕棿 鎴戣缃簡30骞�
- Date expiration = new Date(System.currentTimeMillis() + (long) 946080000 * 1000);
- String url = ossClient.generatePresignedUrl(bucketName, fileName, expiration).toString();
- System.out.println("oss涓婁紶鎴愬姛锛�" + url);
- // URL urlO = new URL(url);
- // HttpURLConnection conn = (HttpURLConnection) urlO.openConnection();
- // conn.setRequestMethod("GET");
- // conn.setConnectTimeout(10 * 1000);
- // conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
- //
- // InputStream inputStream2 = conn.getInputStream();// 閫氳繃杈撳叆娴佽幏鍙栧浘鐗囨暟鎹�
- //
- // byte[] data = readInputStream(inputStream2);
- //
- // System.out.println("鑾峰彇鍥剧墖鎴愬姛:" + url);
+ System.out.println("寮�濮嬩笂浼�--" + dtf2.format(LocalDateTime.now()));
+
+ ossClient.putObject(bucketName, fileName, inputStream, objectMetadata);
+ ossClient.shutdown();
+
+ Date expiration = new Date(System.currentTimeMillis() + (long) 946080000 * 1000);
+
+ String url = ossClient.generatePresignedUrl(bucketName, fileName, expiration).toString();
+// System.out.println("oss涓婁紶鎴愬姛锛�" + url);
+
+ System.out.println("涓婁紶瀹屾垚--" + dtf2.format(LocalDateTime.now()));
return url;
} catch (Exception e) {
System.out.println("oss寮傚父锛�" + e.getMessage());
@@ -179,8 +239,9 @@
}
}
+
public static String getcontentType(String FilenameExtension) {
- if (FilenameExtension.equalsIgnoreCase(".mp4")||FilenameExtension.equalsIgnoreCase(".mov")) {
+ if (FilenameExtension.equalsIgnoreCase(".mp4") || FilenameExtension.equalsIgnoreCase(".mov")) {
return "video/mp4";
}
if (FilenameExtension.equalsIgnoreCase(".bmp")) {
--
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