图片本地转webp

ruoyi-admin/src/test/java/com/ruoyi/test/ImageTest.java

@@ -0,0 +1,83 @@
+package com.ruoyi.test;
+
+import cn.hutool.core.img.Img;
+import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.io.IoUtil;
+import com.esotericsoftware.kryo.io.Input;
+import org.junit.jupiter.api.Test;
+
+
+import javax.swing.*;
+import java.awt.image.BufferedImage;
+import java.io.*;
+
+
+public class ImageTest {
+
+
+
+    @Test
+    public void test1(){
+        JFileChooser jfc = new JFileChooser();
+        jfc.setMultiSelectionEnabled(true);
+        jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
+        jfc.showOpenDialog(null);
+        File[] fs = jfc.getSelectedFiles();
+        for(File f : fs) {
+            File outFile = new File(f.getAbsolutePath().substring(0,f.getAbsolutePath().lastIndexOf("."))+".webp");
+            try(
+                InputStream in = formatImage(Img.from(f),800,800,null);
+                OutputStream out = new FileOutputStream(outFile);
+                ){
+                IoUtil.copy(in,out);
+            }catch (Exception e){
+
+            }
+
+        }
+    }
+
+
+
+    public InputStream formatImage(Img img, int maxWidth, int maxHeight, BufferedImage watermark) {
+        try {
+            int w = img.getImg().getWidth(null);
+            int h = img.getImg().getHeight(null);
+            if(maxWidth>0 && maxHeight > 0){
+                if (w > maxWidth || h > maxHeight) {
+                    int outWidth = 0;
+                    int outHeight = 0;
+                    outHeight = maxWidth * h / w;
+                    if (outHeight > maxHeight) {
+                        outHeight = maxHeight;
+                        outWidth = outHeight * maxWidth / h;
+                    } else {
+                        outWidth = maxWidth;
+                    }
+                    img = img.scale(outWidth, outHeight);
+                    w = outWidth;
+                    h = outHeight;
+                }
+            }
+
+            if (watermark != null) {
+                int ww = watermark.getWidth(null);
+                int wh = watermark.getHeight(null);
+                if (w > ww && h > wh) {
+                    img = img.pressImage(watermark, 0, 0, 1f);
+                }
+            }
+
+            ByteArrayOutputStream pout = new ByteArrayOutputStream();
+
+            img.setTargetImageType("webp").write(pout);
+
+            ByteArrayInputStream pin = new ByteArrayInputStream(pout.toByteArray());
+            pout.close();
+            pout = null;
+            return pin;
+        } catch (Exception e) {
+            throw new RuntimeException("处理图片错误", e);
+        }
+    }
+}

ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserService.java

@@ -173,6 +173,7 @@ public interface ISysUserService {
      */
     int updateUserProfile(SysUser user);
 
+
     /**
      * 修改用户头像
      *