diff --git a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/ImageUtils.java b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/ImageUtils.java
index aa3837f..32c65d6 100644
--- a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/ImageUtils.java
+++ b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/ImageUtils.java
@@ -1,9 +1,8 @@
 package com.yxt.common.base.config.captcha;
 
-
+import cn.hutool.core.codec.Base64;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
-import sun.misc.BASE64Decoder;
 
 import java.io.*;
 
@@ -89,12 +88,12 @@ public class ImageUtils {
             return false;
         }
 
-        BASE64Decoder decoder = new BASE64Decoder();
+//        BASE64Decoder decoder = new BASE64Decoder();
         OutputStream out = null;
         try {
             out = new FileOutputStream(imgFilePath);
             // Base64解码
-            byte[] b = decoder.decodeBuffer(imgData);
+            byte[] b = Base64.decode(imgData);
             for (int i = 0; i < b.length; ++i) {
                 // 调整异常数据
                 if (b[i] < 0) {
diff --git a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/AbstractCaptcha.java b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/AbstractCaptcha.java
index f65b502..79bc25f 100644
--- a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/AbstractCaptcha.java
+++ b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/AbstractCaptcha.java
@@ -1,10 +1,10 @@
 package com.yxt.common.base.config.captcha.factory.impl;
 
+import cn.hutool.core.codec.Base64;
 import com.yxt.common.base.config.captcha.CaptchaBaseParam;
 import com.yxt.common.base.config.captcha.CaptchaException;
 import com.yxt.common.core.vo.CaptchaBaseVO;
 import org.apache.commons.lang3.StringUtils;
-import sun.misc.BASE64Encoder;
 
 import javax.imageio.ImageIO;
 import java.awt.*;
@@ -75,8 +75,7 @@ public abstract class AbstractCaptcha {
             throw new CaptchaException("ImageIO.write  is error", e);
         }
         byte[] bytes = baos.toByteArray();
-        BASE64Encoder encoder = new sun.misc.BASE64Encoder();
-        return encoder.encodeBuffer(bytes).trim();
+        return Base64.encode(bytes).trim();
     }
 
     public String getJigsawUrlOrPath() {
diff --git a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/BlockPuzzleCaptcha.java b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/BlockPuzzleCaptcha.java
index 615b556..e7fea2e 100644
--- a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/BlockPuzzleCaptcha.java
+++ b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/captcha/factory/impl/BlockPuzzleCaptcha.java
@@ -1,12 +1,12 @@
 package com.yxt.common.base.config.captcha.factory.impl;
 
+import cn.hutool.core.codec.Base64;
 import com.alibaba.fastjson.JSON;
 import com.yxt.common.base.config.captcha.CaptchaBaseParam;
 import com.yxt.common.base.config.captcha.CaptchaException;
 import com.yxt.common.core.vo.BlockPuzzleCaptchaVO;
 import com.yxt.common.core.vo.CaptchaBaseVO;
 import org.apache.commons.lang3.StringUtils;
-import sun.misc.BASE64Encoder;
 
 import javax.imageio.ImageIO;
 import java.awt.*;
@@ -87,10 +87,9 @@ public class BlockPuzzleCaptcha extends AbstractCaptcha {
             // 源图生成遮罩
             byte[] oriCopyImages = DealOriPictureByTemplate(originalImage, jigsawImage, x, 0);
 
-            BASE64Encoder encoder = new sun.misc.BASE64Encoder();
-            dataVO.setOriginalImageBase64(encoder.encode(oriCopyImages));
+            dataVO.setOriginalImageBase64(Base64.encode(oriCopyImages));
             dataVO.setPoint(point);
-            dataVO.setJigsawImageBase64(encoder.encode(jigsawImages));
+            dataVO.setJigsawImageBase64(Base64.encode(jigsawImages));
             return dataVO;
         } catch (Exception e){
             throw new CaptchaException(e);
diff --git a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/component/DocPdfComponent.java b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/component/DocPdfComponent.java
index 3d04d0e..1ae2d8f 100644
--- a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/component/DocPdfComponent.java
+++ b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/config/component/DocPdfComponent.java
@@ -1,5 +1,6 @@
 package com.yxt.common.base.config.component;
 
+import cn.hutool.core.codec.Base64;
 import cn.hutool.core.date.DateUtil;
 import com.jacob.activeX.ActiveXComponent;
 import com.jacob.com.Dispatch;
@@ -11,7 +12,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
-import sun.misc.BASE64Encoder;
 
 import java.io.*;
 import java.util.Date;
@@ -94,8 +94,7 @@ public class DocPdfComponent {
         } catch (Exception e) {
             e.printStackTrace();
         }
-        BASE64Encoder encoder = new BASE64Encoder();
-        return encoder.encode(data);
+        return Base64.encode(data);
     }
 
     /**
diff --git a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/utils/WordUtils.java b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/utils/WordUtils.java
index 59d5f69..15a7bae 100644
--- a/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/utils/WordUtils.java
+++ b/yxt-common/yxt-common-base/src/main/java/com/yxt/common/base/utils/WordUtils.java
@@ -1,12 +1,12 @@
 package com.yxt.common.base.utils;
 
+import cn.hutool.core.codec.Base64;
 import com.jacob.activeX.ActiveXComponent;
 import com.jacob.com.ComThread;
 import com.jacob.com.Dispatch;
 import freemarker.template.Configuration;
 import freemarker.template.Template;
 import freemarker.template.Version;
-import sun.misc.BASE64Encoder;
 
 import java.io.*;
 import java.util.*;
@@ -73,8 +73,7 @@ public class WordUtils {
         } catch (Exception e) {
             e.printStackTrace();
         }
-        BASE64Encoder encoder = new BASE64Encoder();
-        return encoder.encode(data);
+        return Base64.encode(data);
     }
 
     /**