删除

ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/utils/ImageCompressUtil.java

@@ -1,141 +0,0 @@
-package com.ruoyi.system.utils;
-
-import com.sun.image.codec.jpeg.JPEGCodec;
-import com.sun.image.codec.jpeg.JPEGEncodeParam;
-import com.sun.image.codec.jpeg.JPEGImageEncoder;
-
-import javax.imageio.ImageIO;
-import java.awt.*;
-import java.awt.image.BufferedImage;
-import java.io.*;
-
-/**
- * @author 吴一博
- * @date 2023年08月11日 16:52
- * @Description Java压缩图片util,可等比例宽高不失真压缩，也可直接指定压缩后的宽高
- */
-public class ImageCompressUtil {
-    /**
-     * 直接指定压缩后的宽高：
-     * (先保存原文件，再压缩、上传)
-     * 壹拍项目中用于二维码压缩
-     * @param oldFile 要进行压缩的文件全路径
-     * @param width 压缩后的宽度
-     * @param height 压缩后的高度
-     * @param quality 压缩质量
-     * @param smallIcon 文件名的小小后缀(注意，非文件后缀名称),入压缩文件名是yasuo.jpg,则压缩后文件名是yasuo(+smallIcon).jpg
-     * @return 返回压缩后的文件的全路径
-     */
-    public static String zipImageFile(String oldFile, int width, int height,
-                                      float quality, String smallIcon) {
-        if (oldFile == null) {
-            return null;
-        }
-        String newImage = null;
-        try {
-            /**对服务器上的临时文件进行处理 */
-            Image srcFile = ImageIO.read(new File(oldFile));
-            /** 宽,高设定 */
-            BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
-            tag.getGraphics().drawImage(srcFile, 0, 0, width, height, null);
-            String filePrex = oldFile.substring(0, oldFile.indexOf('.'));
-            /** 压缩后的文件名 */
-            newImage = filePrex + smallIcon	+ oldFile.substring(filePrex.length());
-            /** 压缩之后临时存放位置 */
-            FileOutputStream out = new FileOutputStream(newImage);
-            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
-            JPEGEncodeParam jep = JPEGCodec.getDefaultJPEGEncodeParam(tag);
-            /** 压缩质量 */
-            jep.setQuality(quality, true);
-            encoder.encode(tag, jep);
-            out.close();
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return newImage;
-    }
-
-    /**
-     * 保存文件到服务器临时路径(用于文件上传)
-     * @param fileName
-     * @param is
-     * @return 文件全路径
-     */
-    public static String writeFile(String fileName, InputStream is) {
-        if (fileName == null || fileName.trim().length() == 0) {
-            return null;
-        }
-        try {
-            /** 首先保存到临时文件 */
-            FileOutputStream fos = new FileOutputStream(fileName);
-            byte[] readBytes = new byte[512];// 缓冲大小
-            int readed = 0;
-            while ((readed = is.read(readBytes)) > 0) {
-                fos.write(readBytes, 0, readed);
-            }
-            fos.close();
-            is.close();
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return fileName;
-    }
-
-    /**
-     * 等比例压缩算法：
-     * 算法思想：根据压缩基数和压缩比来压缩原图，生产一张图片效果最接近原图的缩略图
-     * @param srcURL 原图地址
-     * @param deskURL 缩略图地址
-     * @param comBase 压缩基数
-     * @param scale 压缩限制(宽/高)比例  一般用1：
-     * 当scale>=1,缩略图height=comBase,width按原图宽高比例;若scale<1,缩略图width=comBase,height按原图宽高比例
-     * @throws Exception
-     * @author shenbin
-     * @createTime 2014-12-16
-     * @lastModifyTime 2014-12-16
-     */
-    public static void saveMinPhoto(String srcURL, String deskURL, double comBase,
-                                    double scale) throws Exception {
-        File srcFile = new java.io.File(srcURL);
-        Image src = ImageIO.read(srcFile);
-        int srcHeight = src.getHeight(null);
-        int srcWidth = src.getWidth(null);
-        int deskHeight = 0;// 缩略图高
-        int deskWidth = 0;// 缩略图宽
-        double srcScale = (double) srcHeight / srcWidth;
-        /**缩略图宽高算法*/
-        if ((double) srcHeight > comBase || (double) srcWidth > comBase) {
-            if (srcScale >= scale || 1 / srcScale > scale) {
-                if (srcScale >= scale) {
-                    deskHeight = (int) comBase;
-                    deskWidth = srcWidth * deskHeight / srcHeight;
-                } else {
-                    deskWidth = (int) comBase;
-                    deskHeight = srcHeight * deskWidth / srcWidth;
-                }
-            } else {
-                if ((double) srcHeight > comBase) {
-                    deskHeight = (int) comBase;
-                    deskWidth = srcWidth * deskHeight / srcHeight;
-                } else {
-                    deskWidth = (int) comBase;
-                    deskHeight = srcHeight * deskWidth / srcWidth;
-                }
-            }
-        } else {
-            deskHeight = srcHeight;
-            deskWidth = srcWidth;
-        }
-        BufferedImage tag = new BufferedImage(deskWidth, deskHeight, BufferedImage.TYPE_3BYTE_BGR);
-        tag.getGraphics().drawImage(src, 0, 0, deskWidth, deskHeight, null); //绘制缩小后的图
-        FileOutputStream deskImage = new FileOutputStream(deskURL); //输出到文件流
-        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(deskImage);
-        encoder.encode(tag); //近JPEG编码
-        deskImage.close();
-    }
-
-}