From eae562d21251945e04eba1555ff00365486e1e3e Mon Sep 17 00:00:00 2001
From: cwchen <1048842385@qq.com>
Date: Wed, 2 Apr 2025 09:31:38 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=87=E4=BB=B6=E5=8E=8B=E7=BC=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
pom.xml | 6 +
.../controller/FileUploadController.java | 63 ++++++++++
.../java/com/bonus/imgTool/utils/IDUtils.java | 20 ++++
.../com/bonus/imgTool/utils/PicUtils.java | 111 ++++++++++++++++++
4 files changed, 200 insertions(+)
create mode 100644 src/main/java/com/bonus/imgTool/system/controller/FileUploadController.java
create mode 100644 src/main/java/com/bonus/imgTool/utils/PicUtils.java
diff --git a/pom.xml b/pom.xml
index 90609f4..ddd5125 100644
--- a/pom.xml
+++ b/pom.xml
@@ -360,6 +360,12 @@
easypoi-base
4.1.2
+
+
+ net.coobird
+ thumbnailator
+ 0.4.8
+
diff --git a/src/main/java/com/bonus/imgTool/system/controller/FileUploadController.java b/src/main/java/com/bonus/imgTool/system/controller/FileUploadController.java
new file mode 100644
index 0000000..93a9384
--- /dev/null
+++ b/src/main/java/com/bonus/imgTool/system/controller/FileUploadController.java
@@ -0,0 +1,63 @@
+package com.bonus.imgTool.system.controller;
+
+import com.bonus.imgTool.utils.DateTimeHelper;
+import com.bonus.imgTool.utils.IDUtils;
+import com.bonus.imgTool.utils.SystemUtils;
+import com.bonus.imgTool.webResult.AjaxResult;
+import io.swagger.annotations.ApiOperation;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @className:FileUploadController
+ * @author:cwchen
+ * @date:2025-04-02-9:20
+ * @version:1.0
+ * @description:文件上传
+ */
+@RestController
+@RequestMapping("/common/file/")
+@Slf4j
+public class FileUploadController {
+
+ @ApiOperation(value = "文件上传")
+ @PostMapping("uploadFile")
+ public AjaxResult appUploadFile(@RequestParam(value = "files") MultipartFile[] files) {
+ try {
+ List> fileList = new ArrayList<>();
+ for (MultipartFile file : files) {
+ String fileName = file.getOriginalFilename();
+ String suffix = IDUtils.getSuffix(fileName);
+ String fileMbSize = IDUtils.getFileMbSize(file.getSize());
+ String path = File.separator + DateTimeHelper.getNowYMD() + File.separator + IDUtils.createID() + suffix;
+ String newPath = SystemUtils.getUploadPath() + path;
+ File uploadFile = new File(newPath);
+ //生成文件夹
+ if (!uploadFile.getParentFile().exists()) {
+ uploadFile.getParentFile().mkdirs();
+ }
+ // 存入临时文件
+ file.transferTo(uploadFile);
+ Map map = new HashMap<>();
+ map.put("filePath", path);
+ map.put("fileName", fileName);
+ map.put("fileSize", fileMbSize);
+ fileList.add(map);
+ }
+ return AjaxResult.success("上传成功", fileList);
+ } catch (Exception e) {
+ log.error(e.toString(), e);
+ return AjaxResult.error("文件上传异常");
+ }
+ }
+}
diff --git a/src/main/java/com/bonus/imgTool/utils/IDUtils.java b/src/main/java/com/bonus/imgTool/utils/IDUtils.java
index 48fa37b..502ee32 100644
--- a/src/main/java/com/bonus/imgTool/utils/IDUtils.java
+++ b/src/main/java/com/bonus/imgTool/utils/IDUtils.java
@@ -20,4 +20,24 @@ public class IDUtils {
return System.currentTimeMillis() + String.valueOf(r).substring(1);
}
+ /**
+ * 传入文件 名称
+ * @param fileName
+ * @return
+ */
+ public static String getSuffix(String fileName){
+ return fileName.substring(fileName.lastIndexOf('.'));
+ }
+
+ /**
+ * 将文件大小转为Mb
+ * @param bytes
+ * @return
+ */
+ public static String getFileMbSize(long bytes){
+ double mb = bytes / (1024.0 * 1024.0);
+ System.out.println("文件大小: " + String.format("%.2f MB", mb));
+ return String.format("%.2f", mb);
+ }
+
}
diff --git a/src/main/java/com/bonus/imgTool/utils/PicUtils.java b/src/main/java/com/bonus/imgTool/utils/PicUtils.java
new file mode 100644
index 0000000..0bb7f04
--- /dev/null
+++ b/src/main/java/com/bonus/imgTool/utils/PicUtils.java
@@ -0,0 +1,111 @@
+package com.bonus.imgTool.utils;
+
+import net.coobird.thumbnailator.Thumbnails;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.*;
+
+/**
+ * @author 10488
+ * 图片压缩工具类
+ */
+public class PicUtils {
+ //以下是常量,按照阿里代码开发规范,不允许代码中出现魔法值
+ private static final Logger logger = LoggerFactory.getLogger(PicUtils.class);
+ private static final Integer ZERO = 0;
+ private static final Integer ONE_ZERO_TWO_FOUR = 1024;
+ private static final Integer NINE_ZERO_ZERO = 900;
+ private static final Integer THREE_TWO_SEVEN_FIVE = 3275;
+ private static final Integer TWO_ZERO_FOUR_SEVEN = 2047;
+ private static final Double ZERO_EIGHT_FIVE = 0.85;
+ private static final Double ZERO_SIX = 0.6;
+ private static final Double ZERO_FOUR_FOUR = 0.44;
+ private static final Double ZERO_FOUR = 0.4;
+
+ /**
+ * 根据指定大小压缩图片
+ *
+ * @param imageBytes 源图片字节数组
+ * @param desFileSize 指定图片大小，单位kb
+ * @return 压缩质量后的图片字节数组
+ */
+ public static byte[] compressPicForScale(byte[] imageBytes, long desFileSize) {
+ if (imageBytes == null || imageBytes.length <= ZERO || imageBytes.length < desFileSize * ONE_ZERO_TWO_FOUR) {
+ return imageBytes;
+ }
+ long srcSize = imageBytes.length;
+ double accuracy = getAccuracy(srcSize / ONE_ZERO_TWO_FOUR);
+ try {
+ while (imageBytes.length > desFileSize * ONE_ZERO_TWO_FOUR) {
+ ByteArrayInputStream inputStream = new ByteArrayInputStream(imageBytes);
+ ByteArrayOutputStream outputStream = new ByteArrayOutputStream(imageBytes.length);
+ Thumbnails.of(inputStream)
+ .scale(accuracy)
+ .outputQuality(accuracy)
+ .toOutputStream(outputStream);
+ imageBytes = outputStream.toByteArray();
+ }
+ logger.info("图片原大小={}kb | 压缩后大小={}kb",
+ srcSize / ONE_ZERO_TWO_FOUR, imageBytes.length / ONE_ZERO_TWO_FOUR);
+ } catch (Exception e) {
+ logger.error("【图片压缩】msg=图片压缩失败!", e);
+ }
+ return imageBytes;
+ }
+
+ /**
+ * 自动调节精度(经验数值)
+ *
+ * @param size 源图片大小
+ * @return 图片压缩质量比
+ */
+ private static double getAccuracy(long size) {
+ double accuracy;
+ if (size < NINE_ZERO_ZERO) {
+ accuracy = ZERO_EIGHT_FIVE;
+ } else if (size < TWO_ZERO_FOUR_SEVEN) {
+ accuracy = ZERO_SIX;
+ } else if (size < THREE_TWO_SEVEN_FIVE) {
+ accuracy = ZERO_FOUR_FOUR;
+ } else {
+ accuracy = ZERO_FOUR;
+ }
+ return accuracy;
+ }
+
+ public static byte[] FileTobyte(File file) {
+ FileInputStream fileInputStream = null;
+ byte[] imgData = null;
+
+ try {
+ imgData = new byte[(int) file.length()];
+
+ //read file into bytes[]
+ fileInputStream = new FileInputStream(file);
+ fileInputStream.read(imgData);
+
+ } catch (IOException e) {
+ e.printStackTrace();
+ } finally {
+ if (fileInputStream != null) {
+ try {
+ fileInputStream.close();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+
+ }
+ return imgData;
+ }
+
+ public static void main(String[] args) throws IOException {
+ byte[] bytes = compressPicForScale(FileTobyte(new File("L:\\其他\\测试图片\\6.jpg")), 200);
+ String newFileName = IDUtils.createID() + ".jpg";
+ File fOut = new File("L:\\新建文件夹\\" + newFileName);
+ FileOutputStream fileOutputStream = new FileOutputStream(fOut);
+ fileOutputStream.write(bytes);
+ fileOutputStream.close();
+ }
+}