From f093da99ecb963d19d62dc0f242f00b20bc8895c Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期三, 14 四月 2021 13:22:31 +0800
Subject: [PATCH] Merge branch 'master' of https://gitee.com/y_project/RuoYi-Vue into dev

---
 ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java |  209 ++++++++++++++++++++++++++++++---------------------
 1 files changed, 123 insertions(+), 86 deletions(-)

diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
index 035cfd2..48e4e4e 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
@@ -1,86 +1,123 @@
-package com.ruoyi.web.controller.common;
-
-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.sign.Base64;
-import com.ruoyi.common.utils.uuid.IdUtils;
-
-/**
- * 楠岃瘉鐮佹搷浣滃鐞�
- * 
- * @author ruoyi
- */
-@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�
-     */
-    @GetMapping("/captchaImage")
-    public AjaxResult getCode(HttpServletResponse response) throws IOException
-    {
-        // 淇濆瓨楠岃瘉鐮佷俊鎭�
-        String uuid = IdUtils.simpleUUID();
-        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
-
-        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
-        {
-            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;
-    }
-}
+package com.ruoyi.web.controller.common;
+
+import cn.hutool.captcha.AbstractCaptcha;
+import cn.hutool.captcha.CircleCaptcha;
+import cn.hutool.captcha.LineCaptcha;
+import cn.hutool.captcha.ShearCaptcha;
+import cn.hutool.captcha.generator.CodeGenerator;
+import cn.hutool.captcha.generator.MathGenerator;
+import cn.hutool.captcha.generator.RandomGenerator;
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.util.IdUtil;
+import cn.hutool.core.util.StrUtil;
+import com.ruoyi.common.constant.Constants;
+import com.ruoyi.common.core.domain.AjaxResult;
+import com.ruoyi.common.core.redis.RedisCache;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 楠岃瘉鐮佹搷浣滃鐞�
+ *
+ * @author Lion Li
+ */
+@RestController
+public class CaptchaController {
+
+	// 鍦嗗湀骞叉壈楠岃瘉鐮�
+	@Resource(name = "CircleCaptcha")
+	private CircleCaptcha circleCaptcha;
+	// 绾挎骞叉壈鐨勯獙璇佺爜
+	@Resource(name = "LineCaptcha")
+	private LineCaptcha lineCaptcha;
+	// 鎵洸骞叉壈楠岃瘉鐮�
+	@Resource(name = "ShearCaptcha")
+	private ShearCaptcha shearCaptcha;
+
+	@Autowired
+	private RedisCache redisCache;
+
+	// 楠岃瘉鐮佺被鍨�
+	@Value("${captcha.captchaType}")
+	private String captchaType;
+	// 楠岃瘉鐮佺被鍒�
+	@Value("${captcha.captchaCategory}")
+	private String captchaCategory;
+	// 鏁板瓧楠岃瘉鐮佷綅鏁�
+	@Value("${captcha.captchaNumberLength}")
+	private int numberLength;
+	// 瀛楃楠岃瘉鐮侀暱搴�
+	@Value("${captcha.captchaCharLength}")
+	private int charLength;
+
+	/**
+	 * 鐢熸垚楠岃瘉鐮�
+	 */
+	@GetMapping("/captchaImage")
+	public AjaxResult getCode() {
+		// 淇濆瓨楠岃瘉鐮佷俊鎭�
+		String uuid = IdUtil.simpleUUID();
+		String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
+		String code = null;
+		// 鐢熸垚楠岃瘉鐮�
+		CodeGenerator codeGenerator;
+		AbstractCaptcha captcha;
+		switch (captchaType) {
+			case "math":
+				codeGenerator = new MathGenerator(numberLength);
+				break;
+			case "char":
+				codeGenerator = new RandomGenerator(charLength);
+				break;
+			default:
+				throw new IllegalArgumentException("楠岃瘉鐮佺被鍨嬪紓甯�");
+		}
+		switch (captchaCategory) {
+			case "line":
+				captcha = lineCaptcha;
+				break;
+			case "circle":
+				captcha = circleCaptcha;
+				break;
+			case "shear":
+				captcha = shearCaptcha;
+				break;
+			default:
+				throw new IllegalArgumentException("楠岃瘉鐮佺被鍒紓甯�");
+		}
+		captcha.setGenerator(codeGenerator);
+		captcha.createCode();
+		if ("math".equals(captchaType)) {
+			code = getCodeResult(captcha.getCode());
+		} else if ("char".equals(captchaType)) {
+			code = captcha.getCode();
+		}
+		redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
+		AjaxResult ajax = AjaxResult.success();
+		ajax.put("uuid", uuid);
+		ajax.put("img", captcha.getImageBase64());
+		return ajax;
+	}
+
+	private String getCodeResult(String capStr) {
+		int a = Convert.toInt(StrUtil.sub(capStr, 0, numberLength).trim());
+		char operator = capStr.charAt(numberLength);
+		int b = Convert.toInt(StrUtil.sub(capStr, numberLength + 1, numberLength + 1 + numberLength).trim());
+		switch (operator) {
+			case '*':
+				return a * b + "";
+			case '+':
+				return a + b + "";
+			case '-':
+				return a - b + "";
+			default:
+				return "";
+		}
+	}
+
+}

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