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/project/common/CaptchaController.java |   65 ++++++++++++++++++++++----------
 1 files changed, 45 insertions(+), 20 deletions(-)

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;
     }
 }

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