From a71e2e4777b412aef735b7c3d547a502b6990ad9 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期四, 23 七月 2020 10:52:59 +0800
Subject: [PATCH] 验证码类型支持(数组计算、字符验证)

---
 src/main/java/com/ruoyi/framework/config/CaptchaConfig.java      |   83 ++++++++++++++++++++
 pom.xml                                                          |   14 +++
 src/main/java/com/ruoyi/framework/config/KaptchaTextCreator.java |   75 ++++++++++++++++++
 src/main/resources/application.yml                               |    2 
 src/main/java/com/ruoyi/project/common/CaptchaController.java    |   65 +++++++++++-----
 5 files changed, 219 insertions(+), 20 deletions(-)

diff --git a/pom.xml b/pom.xml
index 638c5d9..5f533da 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,6 +31,7 @@
 		<commons.fileupload.version>1.3.3</commons.fileupload.version>
 		<bitwalker.version>1.19</bitwalker.version>
 		<jwt.version>0.9.0</jwt.version>
+		<kaptcha.version>2.3.2</kaptcha.version>
 		<swagger.version>2.9.2</swagger.version>
 		<poi.version>3.17</poi.version>
 		<oshi.version>3.9.1</oshi.version>
@@ -243,6 +244,19 @@
 				</exclusion>
 			</exclusions>
 		</dependency>
+		
+		<!--楠岃瘉鐮� -->
+        <dependency>
+            <groupId>com.github.penggle</groupId>
+            <artifactId>kaptcha</artifactId>
+            <version>${kaptcha.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>javax.servlet-api</artifactId>
+                    <groupId>javax.servlet</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
 
 	</dependencies>
 
diff --git a/src/main/java/com/ruoyi/framework/config/CaptchaConfig.java b/src/main/java/com/ruoyi/framework/config/CaptchaConfig.java
new file mode 100644
index 0000000..b6f80bf
--- /dev/null
+++ b/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.*;
+
+/**
+ * 楠岃瘉鐮侀厤缃�
+ * 
+ * @author ruoyi
+ */
+@Configuration
+public class CaptchaConfig
+{
+    @Bean(name = "captchaProducer")
+    public DefaultKaptcha getKaptchaBean()
+    {
+        DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
+        Properties properties = new Properties();
+        // 鏄惁鏈夎竟妗� 榛樿涓簍rue 鎴戜滑鍙互鑷繁璁剧疆yes锛宯o
+        properties.setProperty(KAPTCHA_BORDER, "yes");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹂鑹� 榛樿涓篊olor.BLACK
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "black");
+        // 楠岃瘉鐮佸浘鐗囧搴� 榛樿涓�200
+        properties.setProperty(KAPTCHA_IMAGE_WIDTH, "160");
+        // 楠岃瘉鐮佸浘鐗囬珮搴� 榛樿涓�50
+        properties.setProperty(KAPTCHA_IMAGE_HEIGHT, "60");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹀ぇ灏� 榛樿涓�40
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_SIZE, "38");
+        // KAPTCHA_SESSION_KEY
+        properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCode");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹂暱搴� 榛樿涓�5
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "4");
+        // 楠岃瘉鐮佹枃鏈瓧浣撴牱寮� 榛樿涓簄ew Font("Arial", 1, fontSize), new Font("Courier", 1, fontSize)
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_NAMES, "Arial,Courier");
+        // 鍥剧墖鏍峰紡 姘寸汗com.google.code.kaptcha.impl.WaterRipple 楸肩溂com.google.code.kaptcha.impl.FishEyeGimpy 闃村奖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();
+        // 鏄惁鏈夎竟妗� 榛樿涓簍rue 鎴戜滑鍙互鑷繁璁剧疆yes锛宯o
+        properties.setProperty(KAPTCHA_BORDER, "yes");
+        // 杈规棰滆壊 榛樿涓篊olor.BLACK
+        properties.setProperty(KAPTCHA_BORDER_COLOR, "105,179,90");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹂鑹� 榛樿涓篊olor.BLACK
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "blue");
+        // 楠岃瘉鐮佸浘鐗囧搴� 榛樿涓�200
+        properties.setProperty(KAPTCHA_IMAGE_WIDTH, "160");
+        // 楠岃瘉鐮佸浘鐗囬珮搴� 榛樿涓�50
+        properties.setProperty(KAPTCHA_IMAGE_HEIGHT, "60");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹀ぇ灏� 榛樿涓�40
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_SIZE, "35");
+        // KAPTCHA_SESSION_KEY
+        properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCodeMath");
+        // 楠岃瘉鐮佹枃鏈敓鎴愬櫒
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_IMPL, "com.ruoyi.framework.config.KaptchaTextCreator");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹂棿璺� 榛樿涓�2
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_SPACE, "3");
+        // 楠岃瘉鐮佹枃鏈瓧绗﹂暱搴� 榛樿涓�5
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "6");
+        // 楠岃瘉鐮佹枃鏈瓧浣撴牱寮� 榛樿涓簄ew Font("Arial", 1, fontSize), new Font("Courier", 1, fontSize)
+        properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_NAMES, "Arial,Courier");
+        // 楠岃瘉鐮佸櫔鐐归鑹� 榛樿涓篊olor.BLACK
+        properties.setProperty(KAPTCHA_NOISE_COLOR, "white");
+        // 骞叉壈瀹炵幇绫�
+        properties.setProperty(KAPTCHA_NOISE_IMPL, "com.google.code.kaptcha.impl.NoNoise");
+        // 鍥剧墖鏍峰紡 姘寸汗com.google.code.kaptcha.impl.WaterRipple 楸肩溂com.google.code.kaptcha.impl.FishEyeGimpy 闃村奖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;
+    }
+}
diff --git a/src/main/java/com/ruoyi/framework/config/KaptchaTextCreator.java b/src/main/java/com/ruoyi/framework/config/KaptchaTextCreator.java
new file mode 100644
index 0000000..e003ce9
--- /dev/null
+++ b/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;
+
+/**
+ * 楠岃瘉鐮佹枃鏈敓鎴愬櫒
+ * 
+ * @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();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/ruoyi/project/common/CaptchaController.java b/src/main/java/com/ruoyi/project/common/CaptchaController.java
index 9a3af20..68823fc 100644
--- a/src/main/java/com/ruoyi/project/common/CaptchaController.java
+++ b/src/main/java/com/ruoyi/project/common/CaptchaController.java
@@ -1,15 +1,19 @@
 package com.ruoyi.project.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.utils.IdUtils;
-import com.ruoyi.common.utils.VerifyCodeUtils;
 import com.ruoyi.common.utils.sign.Base64;
 import com.ruoyi.framework.redis.RedisCache;
 import com.ruoyi.framework.web.domain.AjaxResult;
@@ -22,8 +26,19 @@
 @RestController
 public class CaptchaController
 {
+
+    @Resource(name = "captchaProducer")
+    private Producer captchaProducer;
+
+    @Resource(name = "captchaProducerMath")
+    private Producer captchaProducerMath;
+
     @Autowired
     private RedisCache redisCache;
+    
+    // 楠岃瘉鐮佺被鍨�
+    @Value("${ruoyi.captchaType}")
+    private String captchaType;
 
     /**
      * 鐢熸垚楠岃瘉鐮�
@@ -31,32 +46,42 @@
     @GetMapping("/captchaImage")
     public AjaxResult getCode(HttpServletResponse response) throws IOException
     {
-        // 鐢熸垚闅忔満瀛椾覆
-        String verifyCode = VerifyCodeUtils.generateVerifyCode(4);
-        // 鍞竴鏍囪瘑
+        // 淇濆瓨楠岃瘉鐮佷俊鎭�
         String uuid = IdUtils.simpleUUID();
         String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
 
-        redisCache.setCacheObject(verifyKey, verifyCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
-        // 鐢熸垚鍥剧墖
-        int w = 111, h = 36;
-        ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        VerifyCodeUtils.outputImage(w, h, stream, verifyCode);
+        String capStr = null, code = null;
+        BufferedImage image = null;
+
+        // 鐢熸垚楠岃瘉鐮�
+        if ("math".equals(captchaType))
+        {
+            String capText = captchaProducerMath.createText();
+            capStr = capText.substring(0, capText.lastIndexOf("@"));
+            code = capText.substring(capText.lastIndexOf("@") + 1);
+            image = captchaProducerMath.createImage(capStr);
+        }
+        else if ("char".equals(captchaType))
+        {
+            capStr = code = captchaProducer.createText();
+            image = captchaProducer.createImage(capStr);
+        }
+
+        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
+        // 杞崲娴佷俊鎭啓鍑�
+        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
         try
         {
-            AjaxResult ajax = AjaxResult.success();
-            ajax.put("uuid", uuid);
-            ajax.put("img", Base64.encode(stream.toByteArray()));
-            return ajax;
+            ImageIO.write(image, "jpg", os);
         }
-        catch (Exception e)
+        catch (IOException e)
         {
-            e.printStackTrace();
             return AjaxResult.error(e.getMessage());
         }
-        finally
-        {
-            stream.close();
-        }
+
+        AjaxResult ajax = AjaxResult.success();
+        ajax.put("uuid", uuid);
+        ajax.put("img", Base64.encode(os.toByteArray()));
+        return ajax;
     }
 }
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 7e94949..a181e80 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -12,6 +12,8 @@
   profile: D:/ruoyi/uploadPath
   # 鑾峰彇ip鍦板潃寮�鍏�
   addressEnabled: false
+  # 楠岃瘉鐮佺被鍨� math 鏁扮粍璁$畻 char 瀛楃楠岃瘉
+  captchaType: math
 
 # 寮�鍙戠幆澧冮厤缃�
 server:

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