feat: update

schisandra-cloud-storage-auth/schisandra-cloud-storage-auth-application/schisandra-cloud-storage-auth-application-controller/src/main/java/com/schisandra/auth/application/controller/ReactRotateCaptchaController.java

@@ -6,15 +6,11 @@ import com.schisandra.auth.common.entity.CaptchaResult;
 import com.schisandra.auth.common.redis.RedisUtil;
 import com.schisandra.auth.common.utils.RotateImageUtils;
 import lombok.extern.slf4j.Slf4j;
-import net.coobird.thumbnailator.Thumbnailator;
-import net.coobird.thumbnailator.Thumbnails;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
 import javax.imageio.ImageIO;
-import java.awt.*;
 import java.awt.image.BufferedImage;
-import java.io.IOException;
 import java.io.InputStream;
 import java.security.SecureRandom;
 import java.util.HashMap;
@@ -42,19 +38,20 @@ public class ReactRotateCaptchaController {
      */
     @GetMapping("get")
     public CaptchaResult get() throws Exception {
-        RotateImageUtils rotateImageUtils = new RotateImageUtils();
         CompletableFuture<HashMap> futurePrice = CompletableFuture.supplyAsync(() -> {
             HashMap<String, String> map = new HashMap<>();
             try {
                 SecureRandom random = new SecureRandom();
                 double randomNumber = random.nextInt(280) + 40;
-                InputStream inputStream = ReactRotateCaptchaController.class.getClassLoader().getResourceAsStream("image/cropped_image.png");
+                InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("image/test2.png");
+                assert inputStream != null;
                 BufferedImage image = ImageIO.read(inputStream);
                 String token = UUID.randomUUID().toString();
                 String prefix = redisUtil.buildKey(authRotateCaptchaPrefix, token);
-                redisUtil.setNx(prefix, String.valueOf(randomNumber), 60L, TimeUnit.SECONDS);
-                BufferedImage image1 = rotateImageUtils.rotateImage(image, randomNumber);
-                String img = RotateImageUtils.BufferedImageToBase64(image1);
+                redisUtil.setNx(prefix, String.valueOf(randomNumber), 30L, TimeUnit.SECONDS);
+                BufferedImage bufferedImage = RotateImageUtils.rotateImage(image, randomNumber);
+                BufferedImage newImage = RotateImageUtils.writeCyclePic(bufferedImage);
+                String img = RotateImageUtils.bufferedImageToBase64(newImage);
                 map.put("token", token);
                 map.put("str", img);
             } catch (Exception e) {

schisandra-cloud-storage-auth/schisandra-cloud-storage-auth-common/src/main/java/com/schisandra/auth/common/utils/RotateImageUtils.java

@@ -1,68 +1,17 @@
 package com.schisandra.auth.common.utils;
 
-import java.util.Base64;
-import java.util.Base64.Encoder;
-import java.util.Base64.Decoder;
+import net.coobird.thumbnailator.Thumbnails;
 
 import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
-import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.Base64;
 
 public class RotateImageUtils {
 
-    public static Color bgColor = new Color(255, 255, 255);
-
-
-    /**
-     * @description: 压缩图片并将图片转换成base64
-     * @param: [bufferedImage]
-     * @return: java.lang.String
-     * @author zlg
-     * @date: 2024/5/9 13:13
-     */
-    public static String BufferedImageToBase64(BufferedImage bufferedImage) throws IOException {
-        int targetWidth = 400;
-        int targetHeight = 400;
-        // 获取原始图片的尺寸
-        int originalWidth = bufferedImage.getWidth();
-        int originalHeight = bufferedImage.getHeight();
-        // 创建一个新的 BufferedImage，用于存放处理后的图片
-        BufferedImage outputImage = new BufferedImage(targetWidth, targetHeight, bufferedImage.getType());
-        // 创建一个 Graphics2D 对象，用于绘制新图片
-        Graphics2D graphics = outputImage.createGraphics();
-        graphics.dispose();
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();//io流
-        ImageIO.write(outputImage, "png", baos);//写入流中
-        byte[] bytes = baos.toByteArray();//转换成字节
-        Encoder encoder = Base64.getEncoder();
-        String png_base64 = encoder.encodeToString(bytes);//转换成base64串
-        png_base64 = png_base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n
-        return "data:image/jpg;base64," + png_base64;
-
-    }
-
-    /**
-     * @description: 将base64转换成图片
-     * @param: [base64]
-     * @return: java.awt.image.BufferedImage
-     * @author zlg
-     * @date: 2024/5/9 13:14
-     */
-    public static BufferedImage base64ToBufferedImage(String base64) {
-        Decoder decoder = Base64.getDecoder();
-        try {
-            byte[] bytes1 = decoder.decode(base64);
-            ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
-            return ImageIO.read(bais);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return null;
-    }
 
     /**
      * @description: 获取旋转后的图片
@@ -71,39 +20,77 @@ public class RotateImageUtils {
      * @author zlg
      * @date: 2024/5/9 13:14
      */
-    public BufferedImage rotateImage(BufferedImage image, double theta) throws IOException {
-        BufferedImage originalImage = image;
-        int width = originalImage.getWidth();
-        int height = originalImage.getHeight();
-        // 创建新的BufferedImage对象，设置类型为ARGB_8888
-        BufferedImage newImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
-        // 使用Graphics2D对象将原始图片绘制到新的BufferedImage对象上，同时设置背景色为透明色
-        Graphics2D g2d = newImage.createGraphics();
-        g2d.setBackground(new Color(0, 0, 0, 0)); // 设置背景色为透明色
-        g2d.clearRect(0, 0, width, height); // 清除画布
-        g2d.drawImage(originalImage, 0, 0,null); // 绘制原始图片
-        g2d.dispose();
-        // 对新的BufferedImage对象进行旋转操作
-        double angle = Math.toRadians(theta);
-        int newWidth = (int) (height * Math.cos(angle) + width * Math.sin(angle));
-        int newHeight = (int) (height * Math.sin(angle) + width * Math.cos(angle));
-        BufferedImage rotatedImage = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_ARGB);
-        Graphics2D g2dRotated = rotatedImage.createGraphics();
-        g2dRotated.translate((newWidth - width) / 2, (newHeight - height) / 2);
-        g2dRotated.rotate(angle, width / 2, height / 2);
-        g2dRotated.drawImage(newImage, 0, 0,null);
-        g2dRotated.dispose();
-        int newSize = 160; // 新的大小为500像素
-        BufferedImage resizedImage = new BufferedImage(newSize, newSize, BufferedImage.TYPE_INT_ARGB);
-        Graphics2D g2dResized = resizedImage.createGraphics();
-        g2dResized.drawImage(rotatedImage, 0, 0, newSize, newSize, null);
-        g2dResized.dispose();
-        // 将调整大小后的图像保存到文件中
-        return resizedImage;
+    public static BufferedImage rotateImageByThumbnails(BufferedImage image, double theta) throws IOException {
+
+        BufferedImage bufferedImage = Thumbnails.of(image).size(200, 200).rotate(theta).asBufferedImage();
+        BufferedImage newCompleteImage = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(),
+                BufferedImage.TYPE_INT_ARGB);
+        newCompleteImage.createGraphics().drawImage(bufferedImage, 0, 0,null);
+        return newCompleteImage;
+    }
+
+    /**
+     * BufferedImage转base64
+     *
+     * @param bufferedImage
+     * @return
+     */
+    public static String bufferedImageToBase64(BufferedImage bufferedImage) {
+        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+        try {
+            // 设置图片格式
+            ImageIO.write(bufferedImage, "png", stream);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        byte[] bytes = Base64.getEncoder().encode(stream.toByteArray());
+        String base64 = new String(bytes);
+        return "data:image/png;base64," + base64;
+    }
+
+
+    /**
+     * @description: 获取旋转后的图片
+     * @param: [image, theta, backgroundColor]
+     * @return: java.awt.image.BufferedImage
+     * @author zlg
+     * @date: 2024/5/9 13:14
+     */
+    public static BufferedImage rotateImage(BufferedImage image, double theta) throws IOException {
+        int width = image.getWidth();
+        int height = image.getHeight();
+        double angle = theta * Math.PI / 180; // 度转弧度
+        double[] xCoords = getX(width / 2, height / 2, angle);
+        double[] yCoords = getY(width / 2, height / 2, angle);
+        int WIDTH = (int) (xCoords[3] - xCoords[0]);
+        int HEIGHT = (int) (yCoords[3] - yCoords[0]);
+        BufferedImage resultImage = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
+        for (int i = 0; i < WIDTH; i++) {
+            for (int j = 0; j < HEIGHT; j++) {
+                int x = i - WIDTH / 2;
+                int y = HEIGHT / 2 - j;
+                double radius = Math.sqrt(x * x + y * y);
+                double angle1;
+                if (y > 0) {
+                    angle1 = Math.acos(x / radius);
+                } else {
+                    angle1 = 2 * Math.PI - Math.acos(x / radius);
+                }
+                x = (int) Math.round(radius * Math.cos(angle1 - angle));
+                y = (int) Math.round(radius * Math.sin(angle1 - angle));
+                if (x < (width / 2) & x > -(width / 2) & y < (height / 2) & y > -(height / 2)) {
+                    int rgb = image.getRGB((int) Math.round(x + width / 2), (int) Math.round(height / 2 - y));
+                    resultImage.setRGB(i, j, rgb);
+                } else {
+                    resultImage.setRGB(i, j, -1);
+                }
+            }
+        }
+        return resultImage;
     }
 
     // 获取四个角点旋转后Y方向坐标
-    private double[] getY(int i, int j, double angle) {
+    private static double[] getY(int i, int j, double angle) {
         double results[] = new double[4];
         double radius = Math.sqrt(i * i + j * j);
         double angle1 = Math.asin(j / radius);
@@ -116,7 +103,7 @@ public class RotateImageUtils {
     }
 
     // 获取四个角点旋转后X方向坐标
-    private double[] getX(int i, int j, double angle) {
+    private static double[] getX(int i, int j, double angle) {
         double results[] = new double[4];
         double radius = Math.sqrt(i * i + j * j);
         double angle1 = Math.acos(i / radius);
@@ -135,17 +122,17 @@ public class RotateImageUtils {
      * @author zlg
      * @date: 2024/5/9 13:14
      */
-    public BufferedImage writeCyclePic(BufferedImage image) {
-        BufferedImage newImage = new BufferedImage(350, 350, BufferedImage.TYPE_INT_BGR);
+    public static BufferedImage writeCyclePic(BufferedImage image) {
+        BufferedImage newImage = new BufferedImage(800, 800, BufferedImage.TYPE_INT_BGR);
         try {
             int width = image.getWidth();
             int heigth = image.getHeight();
             double x0 = width / 2;
             double y0 = heigth / 2;
-            int woffset = (width - 350) / 2;
-            int hoffset = (heigth - 350) / 2;
-            for (int i = woffset; i < 350 + woffset; i++) {
-                for (int j = hoffset; j < 350 + hoffset; j++) {
+            int woffset = (width - 800) / 2;
+            int hoffset = (heigth - 800) / 2;
+            for (int i = woffset; i < 800 + woffset; i++) {
+                for (int j = hoffset; j < 800 + hoffset; j++) {
                     double r = Math.sqrt(Math.pow(Math.abs(i - x0), 2.0) + Math.pow(Math.abs(j - y0), 2.0));
                     if (r > (x0 - woffset)) {
                         newImage.setRGB(i - woffset, j - hoffset, -1);
@@ -163,6 +150,4 @@ public class RotateImageUtils {
     }
 
 
-
-
 }