修改

src/main/java/com/ruoyi/project/common/CommonController.java

 package com.ruoyi.project.common;
 
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Base64;
 import java.util.List;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -8,6 +10,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
+import org.springframework.util.Base64Utils;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -95,6 +98,47 @@ public class CommonController
     }
 
     /**
+     * 通用上传请求（单个）
+     */
+    @PostMapping("/uploadToBase64")
+    public AjaxResult uploadToBase64(MultipartFile file) throws Exception
+    {
+        // 验证文件是否为空
+        if (file.isEmpty()) {
+            throw new IllegalArgumentException("上传的文件为空");
+        }
+
+        // 获取文件原始名称，提取扩展名
+        String originalFilename = file.getOriginalFilename();
+        if (originalFilename == null || !originalFilename.contains(".")) {
+            throw new IllegalArgumentException("文件名称无效");
+        }
+
+        String extension = originalFilename.substring(originalFilename.lastIndexOf(".") + 1).toLowerCase();
+
+        // 验证图片格式
+        if (!isValidImageExtension(extension)) {
+            throw new IllegalArgumentException("不支持的图片格式: " + extension);
+        }
+
+        // 读取文件字节并转换为Base64
+        byte[] bytes = file.getBytes();
+        String base64Encoded = Base64Utils.encodeToString(bytes);
+        AjaxResult ajax = AjaxResult.success();
+        ajax.put("url", "data:image/" + extension + ";base64," + base64Encoded);
+        return ajax;
+    }
+
+    /**
+     * 验证图片文件扩展名是否合法
+     */
+    private static boolean isValidImageExtension(String extension) {
+        return "jpg".equals(extension) || "jpeg".equals(extension) ||
+                "png".equals(extension) || "gif".equals(extension) ||
+                "bmp".equals(extension) || "webp".equals(extension);
+    }
+
+    /**
      * 通用上传请求（多个）
      */
     @PostMapping("/uploads")

src/main/java/com/ruoyi/project/zjsgfa/service/impl/JcxxHseServiceImpl.java

 package com.ruoyi.project.zjsgfa.service.impl;
 
 import java.util.List;
+
+import cn.hutool.core.codec.Base64;
 import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.ruoyi.project.zjsgfa.mapper.JcxxHseMapper;
@@ -53,6 +56,10 @@ public class JcxxHseServiceImpl implements IJcxxHseService
     @Override
     public int insertJcxxHse(JcxxHse jcxxHse)
     {
+        if(StringUtils.isNotEmpty(jcxxHse.getHse())){
+            String s = new String(Base64.decode(jcxxHse.getHse()));
+            jcxxHse.setHse(s);
+        }
         return jcxxHseMapper.insertJcxxHse(jcxxHse);
     }
 
@@ -65,6 +72,10 @@ public class JcxxHseServiceImpl implements IJcxxHseService
     @Override
     public int updateJcxxHse(JcxxHse jcxxHse)
     {
+        if(StringUtils.isNotEmpty(jcxxHse.getHse())){
+            String s = new String(Base64.decode(jcxxHse.getHse()));
+            jcxxHse.setHse(s);
+        }
         jcxxHse.setUpdateTime(DateUtils.getNowDate());
         return jcxxHseMapper.updateJcxxHse(jcxxHse);
     }

src/main/java/com/ruoyi/project/zjsgfa/service/impl/JcxxJkzpServiceImpl.java

 package com.ruoyi.project.zjsgfa.service.impl;
 
 import java.util.List;
+
+import cn.hutool.core.codec.Base64;
 import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.ruoyi.project.zjsgfa.mapper.JcxxJkzpMapper;
@@ -53,6 +56,19 @@ public class JcxxJkzpServiceImpl implements IJcxxJkzpService
     @Override
     public int insertJcxxJkzp(JcxxJkzp jcxxJkzp)
     {
+        if(StringUtils.isNotEmpty(jcxxJkzp.getZjkzz())){
+            jcxxJkzp.setZjkzz(new String(Base64.decode(jcxxJkzp.getZjkzz())));
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getClcb())){
+            jcxxJkzp.setClcb(new String(Base64.decode(jcxxJkzp.getClcb())));
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getJlgh())){
+            jcxxJkzp.setJlgh(new String(Base64.decode(jcxxJkzp.getJlgh())));
+
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getSyyq())){
+            jcxxJkzp.setSyyq(new String(Base64.decode(jcxxJkzp.getSyyq())));
+        }
         return jcxxJkzpMapper.insertJcxxJkzp(jcxxJkzp);
     }
 
@@ -65,6 +81,19 @@ public class JcxxJkzpServiceImpl implements IJcxxJkzpService
     @Override
     public int updateJcxxJkzp(JcxxJkzp jcxxJkzp)
     {
+        if(StringUtils.isNotEmpty(jcxxJkzp.getZjkzz())){
+            jcxxJkzp.setZjkzz(new String(Base64.decode(jcxxJkzp.getZjkzz())));
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getClcb())){
+            jcxxJkzp.setClcb(new String(Base64.decode(jcxxJkzp.getClcb())));
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getJlgh())){
+            jcxxJkzp.setJlgh(new String(Base64.decode(jcxxJkzp.getJlgh())));
+
+        }
+        if(StringUtils.isNotEmpty(jcxxJkzp.getSyyq())){
+            jcxxJkzp.setSyyq(new String(Base64.decode(jcxxJkzp.getSyyq())));
+        }
         jcxxJkzp.setUpdateTime(DateUtils.getNowDate());
         return jcxxJkzpMapper.updateJcxxJkzp(jcxxJkzp);
     }

src/main/java/com/ruoyi/project/zjsgfa/service/impl/SjHseServiceImpl.java

 package com.ruoyi.project.zjsgfa.service.impl;
 
 import java.util.List;
+
+import cn.hutool.core.codec.Base64;
 import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.ruoyi.project.zjsgfa.mapper.SjHseMapper;
@@ -53,6 +56,12 @@ public class SjHseServiceImpl implements ISjHseService
     @Override
     public int insertSjHse(SjHse sjHse)
     {
+
+        //解密
+        if(StringUtils.isNotEmpty(sjHse.getHse())){
+            String s = new String(Base64.decode(sjHse.getHse()));
+            sjHse.setHse(s);
+        }
         return sjHseMapper.insertSjHse(sjHse);
     }
 
@@ -65,6 +74,12 @@ public class SjHseServiceImpl implements ISjHseService
     @Override
     public int updateSjHse(SjHse sjHse)
     {
+        //解密
+        if(StringUtils.isNotEmpty(sjHse.getHse())){
+            String s = new String(Base64.decode(sjHse.getHse()));
+            sjHse.setHse(s);
+        }
+
         sjHse.setUpdateTime(DateUtils.getNowDate());
         return sjHseMapper.updateSjHse(sjHse);
     }

src/main/java/com/ruoyi/project/zjsgfa/service/impl/SjJkzpServiceImpl.java

 package com.ruoyi.project.zjsgfa.service.impl;
 
 import java.util.List;
+
+import cn.hutool.core.codec.Base64;
 import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.ruoyi.project.zjsgfa.mapper.SjJkzpMapper;
@@ -53,6 +56,19 @@ public class SjJkzpServiceImpl implements ISjJkzpService
     @Override
     public int insertSjJkzp(SjJkzp sjJkzp)
     {
+        if(StringUtils.isNotEmpty(sjJkzp.getZjkzz())){
+            sjJkzp.setZjkzz(new String(Base64.decode(sjJkzp.getZjkzz())));
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getClcb())){
+            sjJkzp.setClcb(new String(Base64.decode(sjJkzp.getClcb())));
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getJlgh())){
+            sjJkzp.setJlgh(new String(Base64.decode(sjJkzp.getJlgh())));
+
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getSyyq())){
+            sjJkzp.setSyyq(new String(Base64.decode(sjJkzp.getSyyq())));
+        }
         return sjJkzpMapper.insertSjJkzp(sjJkzp);
     }
 
@@ -65,6 +81,19 @@ public class SjJkzpServiceImpl implements ISjJkzpService
     @Override
     public int updateSjJkzp(SjJkzp sjJkzp)
     {
+        if(StringUtils.isNotEmpty(sjJkzp.getZjkzz())){
+            sjJkzp.setZjkzz(new String(Base64.decode(sjJkzp.getZjkzz())));
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getClcb())){
+            sjJkzp.setClcb(new String(Base64.decode(sjJkzp.getClcb())));
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getJlgh())){
+            sjJkzp.setJlgh(new String(Base64.decode(sjJkzp.getJlgh())));
+
+        }
+        if(StringUtils.isNotEmpty(sjJkzp.getSyyq())){
+            sjJkzp.setSyyq(new String(Base64.decode(sjJkzp.getSyyq())));
+        }
         sjJkzp.setUpdateTime(DateUtils.getNowDate());
         return sjJkzpMapper.updateSjJkzp(sjJkzp);
     }