From bf7a9ef439e3b49268974d564107999619b2b4fd Mon Sep 17 00:00:00 2001
From: rain <167982779@qq.com>
Date: Sat, 20 Jul 2024 09:28:40 +0800
Subject: [PATCH] 优化图片压缩下载使用多线程
---
src/main/java/com/dji/sample/media/util/UnZipPhotoUtil.java | 80 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 80 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/dji/sample/media/util/UnZipPhotoUtil.java b/src/main/java/com/dji/sample/media/util/UnZipPhotoUtil.java
new file mode 100644
index 0000000..45789c9
--- /dev/null
+++ b/src/main/java/com/dji/sample/media/util/UnZipPhotoUtil.java
@@ -0,0 +1,80 @@
+package com.dji.sample.media.util;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.util.List;
+import java.util.Objects;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class UnZipPhotoUtil {
+
+ public static void downloadAndSaveImages(List<String> urls, String outputFolder) throws IOException {
+ int count = 0;
+ for (String imageUrl : urls) {
+ try {
+ // 下载图片
+ URL url = new URL(imageUrl);
+ BufferedImage image = ImageIO.read(url);
+
+ // 保存图片
+ File outputfile = new File(outputFolder, "image_" + (count++) + ".jpg");
+ ImageIO.write(image, "jpg", outputfile);
+ System.out.println("Saved: " + outputfile.getAbsolutePath());
+ } catch (IOException e) {
+ System.err.println("Failed to download image: " + imageUrl);
+ e.printStackTrace();
+ throw e;
+ }
+ }
+ }
+
+ public static void zipFolder(String srcFolder, String destZipFile) throws IOException {
+ try (FileOutputStream fos = new FileOutputStream(destZipFile);
+ ZipOutputStream zos = new ZipOutputStream(fos)) {
+
+ File srcFile = new File(srcFolder);
+ for (File file : Objects.requireNonNull(srcFile.listFiles())) {
+ try (FileInputStream fis = new FileInputStream(file)) {
+ ZipEntry zipEntry = new ZipEntry(file.getName());
+ zos.putNextEntry(zipEntry);
+
+ byte[] bytes = new byte[1024];
+ int length;
+ while ((length = fis.read(bytes)) >= 0) {
+ zos.write(bytes, 0, length);
+ }
+ zos.closeEntry();
+ } catch (IOException e) {
+ System.err.println("Failed to zip file: " + file.getPath());
+ e.printStackTrace();
+ throw e;
+ }
+ }
+ }
+ }
+
+ public static void cleanUp(String folderName) {
+ File folder = new File(folderName);
+ deleteFolder(folder);
+ }
+
+ public static void deleteFolder(File folder) {
+ File[] files = folder.listFiles();
+ if (files != null) {
+ for (File f : files) {
+ if (f.isDirectory()) {
+ deleteFolder(f);
+ } else {
+ f.delete();
+ }
+ }
+ }
+ folder.delete();
+ }
+}
--
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