简单数字验证码

ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java

@@ -34,6 +34,9 @@ public class CaptchaController {
     @Resource(name = "captchaProducerMath")
     private Producer captchaProducerMath;
 
+    @Resource(name = "captchaProducerNum")
+    private Producer captchaProducerNum;
+
     @Autowired
     private RedisCache redisCache;
 
@@ -69,6 +72,9 @@ public class CaptchaController {
         } else if ("char".equals(captchaType)) {
             capStr = code = captchaProducer.createText();
             image = captchaProducer.createImage(capStr);
+        } else if ("num".equals(captchaType)) {
+            capStr = code = captchaProducerNum.createText();
+            image = captchaProducerNum.createImage(capStr);
         }
 
         redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);

ruoyi-admin/src/main/resources/application.yml

@@ -10,8 +10,8 @@ ruoyi:
   profile: D:/ruoyi/uploadPath
   # 获取ip地址开关
   addressEnabled: false
-  # 验证码类型 math 数字计算 char 字符验证
-  captchaType: math
+  # 验证码类型 math 数字计算 char 字符验证  num 纯数字
+  captchaType: num
 oss:
   endPoint: oss-cn-beijing.aliyuncs.com
   accessKeyId: LTAI5tFXTfY5Rsiwvrg9gUuk

ruoyi-framework/src/main/java/com/ruoyi/framework/config/CaptchaConfig.java

@@ -80,4 +80,42 @@ public class CaptchaConfig
         defaultKaptcha.setConfig(config);
         return defaultKaptcha;
     }
+
+    @Bean(name = "captchaProducerNum")
+    public DefaultKaptcha getKaptchaBeanNum()
+    {
+        DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
+        Properties properties = new Properties();
+        // 是否有边框 默认为true 我们可以自己设置yes，no
+        properties.setProperty(KAPTCHA_BORDER, "yes");
+        // 边框颜色 默认为Color.BLACK
+        properties.setProperty(KAPTCHA_BORDER_COLOR, "105,179,90");
+        // 验证码文本字符颜色 默认为Color.BLACK
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "blue");
+        // 验证码图片宽度 默认为200
+        properties.setProperty(KAPTCHA_IMAGE_WIDTH, "160");
+        // 验证码图片高度 默认为50
+        properties.setProperty(KAPTCHA_IMAGE_HEIGHT, "60");
+        // 验证码文本字符大小 默认为40
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_SIZE, "40");
+        // KAPTCHA_SESSION_KEY
+        properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCodeNum");
+        // 验证码文本生成器
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_IMPL, "com.ruoyi.framework.config.KaptchaNumberCreator");
+        // 验证码文本字符间距 默认为2
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_SPACE, "8");
+        // 验证码文本字符长度 默认为5
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "5");
+        // 验证码文本字体样式 默认为new Font("Arial", 1, fontSize), new Font("Courier", 1, fontSize)
+//        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_NAMES, "宋体");
+        // 验证码噪点颜色 默认为Color.BLACK
+        properties.setProperty(KAPTCHA_NOISE_COLOR, "white");
+        // 干扰实现类
+        properties.setProperty(KAPTCHA_NOISE_IMPL, "com.google.code.kaptcha.impl.NoNoise");
+        // 图片样式 水纹com.google.code.kaptcha.impl.WaterRipple 鱼眼com.google.code.kaptcha.impl.FishEyeGimpy 阴影com.google.code.kaptcha.impl.ShadowGimpy
+        properties.setProperty(KAPTCHA_OBSCURIFICATOR_IMPL, "com.ruoyi.framework.config.NoGimpy");
+        Config config = new Config(properties);
+        defaultKaptcha.setConfig(config);
+        return defaultKaptcha;
+    }
 }

ruoyi-framework/src/main/java/com/ruoyi/framework/config/KaptchaNumberCreator.java

@@ -0,0 +1,18 @@
+package com.ruoyi.framework.config;
+
+import cn.hutool.core.util.RandomUtil;
+import com.google.code.kaptcha.text.impl.DefaultTextCreator;
+
+/**
+ * 验证码文本生成器
+ *
+ * @author liangyq
+ */
+public class KaptchaNumberCreator extends DefaultTextCreator {
+
+    @Override
+    public String getText() {
+        return RandomUtil.randomNumbers(5);
+    }
+
+}

ruoyi-framework/src/main/java/com/ruoyi/framework/config/NoGimpy.java

@@ -0,0 +1,18 @@
+package com.ruoyi.framework.config;
+
+import com.google.code.kaptcha.GimpyEngine;
+import com.google.code.kaptcha.util.Configurable;
+
+import java.awt.image.BufferedImage;
+
+/**
+ * @author liangyq
+ */
+public class NoGimpy extends Configurable implements GimpyEngine {
+
+    @Override
+    public BufferedImage getDistortedImage(BufferedImage baseImage) {
+        return baseImage;
+    }
+
+}