验证码类型支持（数组计算、字符验证）

pom.xml

@@ -21,6 +21,7 @@
         <druid.version>1.1.14</druid.version>
         <bitwalker.version>1.19</bitwalker.version>
         <swagger.version>2.9.2</swagger.version>
+		<kaptcha.version>2.3.2</kaptcha.version>
         <pagehelper.boot.version>1.2.5</pagehelper.boot.version>
         <fastjson.version>1.2.70</fastjson.version>
         <oshi.version>3.9.1</oshi.version>
@@ -137,6 +138,13 @@
                 <artifactId>jjwt</artifactId>
                 <version>${jwt.version}</version>
             </dependency>
+			
+            <!--验证码 -->
+            <dependency>
+                <groupId>com.github.penggle</groupId>
+                <artifactId>kaptcha</artifactId>
+                <version>${kaptcha.version}</version>
+            </dependency>
             
             <!-- 定时任务-->
             <dependency>

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

@@ -1,16 +1,20 @@
 package com.ruoyi.web.controller.common;
 
-import java.io.ByteArrayOutputStream;
+import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.util.concurrent.TimeUnit;
+import javax.annotation.Resource;
+import javax.imageio.ImageIO;
 import javax.servlet.http.HttpServletResponse;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.util.FastByteArrayOutputStream;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
+import com.google.code.kaptcha.Producer;
 import com.ruoyi.common.constant.Constants;
 import com.ruoyi.common.core.domain.AjaxResult;
 import com.ruoyi.common.core.redis.RedisCache;
-import com.ruoyi.common.utils.VerifyCodeUtils;
 import com.ruoyi.common.utils.sign.Base64;
 import com.ruoyi.common.utils.uuid.IdUtils;
 
@@ -22,8 +26,18 @@ import com.ruoyi.common.utils.uuid.IdUtils;
 @RestController
 public class CaptchaController
 {
+    @Resource(name = "captchaProducer")
+    private Producer captchaProducer;
+
+    @Resource(name = "captchaProducerMath")
+    private Producer captchaProducerMath;
+
     @Autowired
     private RedisCache redisCache;
+    
+    // 验证码类型
+    @Value("${ruoyi.captchaType}")
+    private String captchaType;
 
     /**
      * 生成验证码
@@ -31,32 +45,42 @@ public class CaptchaController
     @GetMapping("/captchaImage")
     public AjaxResult getCode(HttpServletResponse response) throws IOException
     {
-        // 生成随机字串
-        String verifyCode = VerifyCodeUtils.generateVerifyCode(4);
-        // 唯一标识
+        // 保存验证码信息
         String uuid = IdUtils.simpleUUID();
         String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
 
-        redisCache.setCacheObject(verifyKey, verifyCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
-        // 生成图片
-        int w = 111, h = 36;
-        ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        VerifyCodeUtils.outputImage(w, h, stream, verifyCode);
-        try
+        String capStr = null, code = null;
+        BufferedImage image = null;
+
+        // 生成验证码
+        if ("math".equals(captchaType))
         {
-            AjaxResult ajax = AjaxResult.success();
-            ajax.put("uuid", uuid);
-            ajax.put("img", Base64.encode(stream.toByteArray()));
-            return ajax;
+            String capText = captchaProducerMath.createText();
+            capStr = capText.substring(0, capText.lastIndexOf("@"));
+            code = capText.substring(capText.lastIndexOf("@") + 1);
+            image = captchaProducerMath.createImage(capStr);
         }
-        catch (Exception e)
+        else if ("char".equals(captchaType))
         {
-            e.printStackTrace();
-            return AjaxResult.error(e.getMessage());
+            capStr = code = captchaProducer.createText();
+            image = captchaProducer.createImage(capStr);
         }
-        finally
+
+        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
+        // 转换流信息写出
+        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
+        try
         {
-            stream.close();
+            ImageIO.write(image, "jpg", os);
         }
+        catch (IOException e)
+        {
+            return AjaxResult.error(e.getMessage());
+        }
+
+        AjaxResult ajax = AjaxResult.success();
+        ajax.put("uuid", uuid);
+        ajax.put("img", Base64.encode(os.toByteArray()));
+        return ajax;
     }
 }

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

@@ -12,6 +12,8 @@ ruoyi:
   profile: D:/ruoyi/uploadPath
   # 获取ip地址开关
   addressEnabled: false
+  # 验证码类型 math 数组计算 char 字符验证
+  captchaType: char
 
 # 开发环境配置
 server:

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>

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

@@ -0,0 +1,83 @@
+package com.ruoyi.framework.config;
+
+import java.util.Properties;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import com.google.code.kaptcha.impl.DefaultKaptcha;
+import com.google.code.kaptcha.util.Config;
+import static com.google.code.kaptcha.Constants.*;
+
+/**
+ * 验证码配置
+ * 
+ * @author ruoyi
+ */
+@Configuration
+public class CaptchaConfig
+{
+    @Bean(name = "captchaProducer")
+    public DefaultKaptcha getKaptchaBean()
+    {
+        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");
+        // 验证码文本字符颜色 默认为Color.BLACK
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "black");
+        // 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, "38");
+        // KAPTCHA_SESSION_KEY
+        properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCode");
+        // 验证码文本字符长度 默认为5
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "4");
+        // 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, "Arial,Courier");
+        // 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.google.code.kaptcha.impl.ShadowGimpy");
+        Config config = new Config(properties);
+        defaultKaptcha.setConfig(config);
+        return defaultKaptcha;
+    }
+
+    @Bean(name = "captchaProducerMath")
+    public DefaultKaptcha getKaptchaBeanMath()
+    {
+        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, "35");
+        // KAPTCHA_SESSION_KEY
+        properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCodeMath");
+        // 验证码文本生成器
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_IMPL, "com.ruoyi.framework.config.KaptchaTextCreator");
+        // 验证码文本字符间距 默认为2
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_SPACE, "3");
+        // 验证码文本字符长度 默认为5
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "6");
+        // 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, "Arial,Courier");
+        // 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.google.code.kaptcha.impl.ShadowGimpy");
+        Config config = new Config(properties);
+        defaultKaptcha.setConfig(config);
+        return defaultKaptcha;
+    }
+}

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

@@ -0,0 +1,75 @@
+package com.ruoyi.framework.config;
+
+import java.util.Random;
+import com.google.code.kaptcha.text.impl.DefaultTextCreator;
+
+/**
+ * 验证码文本生成器
+ * 
+ * @author ruoyi
+ */
+public class KaptchaTextCreator extends DefaultTextCreator
+{
+    private static final String[] CNUMBERS = "0,1,2,3,4,5,6,7,8,9,10".split(",");
+
+    @Override
+    public String getText()
+    {
+        Integer result = 0;
+        Random random = new Random();
+        int x = random.nextInt(10);
+        int y = random.nextInt(10);
+        StringBuilder suChinese = new StringBuilder();
+        int randomoperands = (int) Math.round(Math.random() * 2);
+        if (randomoperands == 0)
+        {
+            result = x * y;
+            suChinese.append(CNUMBERS[x]);
+            suChinese.append("*");
+            suChinese.append(CNUMBERS[y]);
+        }
+        else if (randomoperands == 1)
+        {
+            if (!(x == 0) && y % x == 0)
+            {
+                result = y / x;
+                suChinese.append(CNUMBERS[y]);
+                suChinese.append("/");
+                suChinese.append(CNUMBERS[x]);
+            }
+            else
+            {
+                result = x + y;
+                suChinese.append(CNUMBERS[x]);
+                suChinese.append("+");
+                suChinese.append(CNUMBERS[y]);
+            }
+        }
+        else if (randomoperands == 2)
+        {
+            if (x >= y)
+            {
+                result = x - y;
+                suChinese.append(CNUMBERS[x]);
+                suChinese.append("-");
+                suChinese.append(CNUMBERS[y]);
+            }
+            else
+            {
+                result = y - x;
+                suChinese.append(CNUMBERS[y]);
+                suChinese.append("-");
+                suChinese.append(CNUMBERS[x]);
+            }
+        }
+        else
+        {
+            result = x + y;
+            suChinese.append(CNUMBERS[x]);
+            suChinese.append("+");
+            suChinese.append(CNUMBERS[y]);
+        }
+        suChinese.append("=?@" + result);
+        return suChinese.toString();
+    }
+}

ruoyi-ui/src/views/login.vue

@@ -29,7 +29,7 @@
           <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
         </el-input>
         <div class="login-code">
-          <img :src="codeUrl" @click="getCode" />
+          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
         </div>
       </el-form-item>
       <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
@@ -200,4 +200,7 @@ export default {
   font-size: 12px;
   letter-spacing: 1px;
 }
+.login-code-img {
+  height: 38px;
+}
 </style>