验证码类型支持（数组计算、字符验证）

ruoyi-framework/pom.xml

@@ -35,6 +35,18 @@
             <artifactId>druid-spring-boot-starter</artifactId>
         </dependency>
 
+        <!-- 验证码 -->
+        <dependency>
+            <groupId>com.github.penggle</groupId>
+            <artifactId>kaptcha</artifactId>
+            <exclusions>
+                <exclusion>
+                    <artifactId>javax.servlet-api</artifactId>
+                    <groupId>javax.servlet</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
         <!-- 获取系统信息 -->
         <dependency>
             <groupId>com.github.oshi</groupId>