refactor: 验证码抽取成公共模块，网关（验证码生成）和授权中心（认证鉴权）都用，后续考虑验证码生成移至认证模块

youlai-common/common-captcha/pom.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.youlai</groupId>
+        <artifactId>youlai-common</artifactId>
+        <version>3.0.1</version>
+    </parent>
+
+    <artifactId>common-captcha</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.youlai</groupId>
+            <artifactId>common-core</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

youlai-common/common-captcha/src/main/java/com/youlai/common/captcha/component/CaptchaGenerator.java

@@ -0,0 +1,57 @@
+package com.youlai.common.captcha.component;
+
+import cn.hutool.captcha.AbstractCaptcha;
+import cn.hutool.captcha.CaptchaUtil;
+import cn.hutool.captcha.generator.CodeGenerator;
+import com.youlai.common.captcha.config.CaptchaProperties;
+import com.youlai.common.captcha.enums.CaptchaTypeEnum;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.awt.*;
+
+/**
+ * 图形验证码生成器
+ *
+ * @author haoxr
+ * @since 3.1.0
+ */
+@Component
+@RequiredArgsConstructor
+public class CaptchaGenerator {
+
+    private final CodeGenerator codeGenerator;
+    private final Font captchaFont;
+    private final CaptchaProperties captchaProperties;
+
+    /**
+     * 生成图形验证码
+     */
+    public AbstractCaptcha generate() {
+
+        String captchaType = captchaProperties.getType();
+        int width = captchaProperties.getWidth();
+        int height = captchaProperties.getHeight();
+        int interfereCount = captchaProperties.getInterfereCount();
+        int codeLength = captchaProperties.getCode().getLength();
+
+        AbstractCaptcha captcha;
+        if (CaptchaTypeEnum.CIRCLE.name().equalsIgnoreCase(captchaType)) {
+            captcha = CaptchaUtil.createCircleCaptcha(width, height, codeLength, interfereCount);
+        } else if (CaptchaTypeEnum.GIF.name().equalsIgnoreCase(captchaType)) {
+            captcha = CaptchaUtil.createGifCaptcha(width, height, codeLength);
+        } else if (CaptchaTypeEnum.LINE.name().equalsIgnoreCase(captchaType)) {
+            captcha = CaptchaUtil.createLineCaptcha(width, height, codeLength, interfereCount);
+        } else if (CaptchaTypeEnum.SHEAR.name().equalsIgnoreCase(captchaType)) {
+            captcha = CaptchaUtil.createShearCaptcha(width, height, codeLength, interfereCount);
+        } else {
+            throw new IllegalArgumentException("Invalid captcha type: " + captchaType);
+        }
+        captcha.setGenerator(codeGenerator);
+        captcha.setTextAlpha(captchaProperties.getTextAlpha());
+        captcha.setFont(captchaFont);
+
+       return captcha;
+    }
+
+}

youlai-common/common-captcha/src/main/java/com/youlai/common/captcha/config/CaptchaConfig.java

@@ -1,8 +1,9 @@
-package com.youlai.gateway.config;
+package com.youlai.common.captcha.config;
 
 import cn.hutool.captcha.generator.CodeGenerator;
 import cn.hutool.captcha.generator.MathGenerator;
 import cn.hutool.captcha.generator.RandomGenerator;
+import com.youlai.common.enums.CaptchaCodeTypeEnum;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -13,7 +14,7 @@ import java.awt.*;
  * 验证码自动装配配置
  *
  * @author haoxr
- * @since 2023/11/24
+ * @since 3.1.0
  */
 @Configuration
 @RequiredArgsConstructor
@@ -30,9 +31,11 @@ public class CaptchaConfig {
     public CodeGenerator codeGenerator() {
         String codeType = captchaProperties.getCode().getType();
         int codeLength = captchaProperties.getCode().getLength();
-        if ("math".equalsIgnoreCase(codeType)) {
+        if (CaptchaCodeTypeEnum.MATH.name().equalsIgnoreCase(codeType)) {
+            // 数学公式验证码
             return new MathGenerator(codeLength);
-        } else if ("random".equalsIgnoreCase(codeType)) {
+        } else if (CaptchaCodeTypeEnum.RANDOM.name().equalsIgnoreCase(codeType)) {
+            // 随机字符验证码
             return new RandomGenerator(codeLength);
         } else {
             throw new IllegalArgumentException("Invalid captcha generator type: " + codeType);

youlai-common/common-captcha/src/main/java/com/youlai/common/captcha/config/CaptchaProperties.java

@@ -1,16 +1,17 @@
-package com.youlai.gateway.config;
+package com.youlai.common.captcha.config;
 
 import lombok.Data;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.stereotype.Component;
 
 /**
  * 验证码配置
  *
  * @author haoxr
- * @since 2023/11/24
+ * @since 3.1.0
  */
-@Component
+@Configuration
 @ConfigurationProperties(prefix = "captcha")
 @Data
 public class CaptchaProperties {

youlai-common/common-captcha/src/main/java/com/youlai/common/captcha/enums/CaptchaTypeEnum.java

@@ -1,4 +1,4 @@
-package com.youlai.gateway.enums;
+package com.youlai.common.captcha.enums;
 
 /**
  * EasyCaptcha 验证码类型枚举

youlai-common/common-captcha/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -0,0 +1,4 @@
+com.youlai.common.captcha.config.CaptchaConfig
+com.youlai.common.captcha.config.CaptchaProperties
+com.youlai.common.captcha.component.CaptchaGenerator
+