diff --git a/zc-business/src/main/java/com/zc/business/controller/DcFileDownloadController.java b/zc-business/src/main/java/com/zc/business/controller/DcFileDownloadController.java
index a93c64d1..fe581c1c 100644
--- a/zc-business/src/main/java/com/zc/business/controller/DcFileDownloadController.java
+++ b/zc-business/src/main/java/com/zc/business/controller/DcFileDownloadController.java
@@ -6,6 +6,7 @@ import com.ruoyi.common.core.controller.BaseController;
 import com.ruoyi.common.core.domain.AjaxResult;
 import com.ruoyi.common.core.page.TableDataInfo;
 import com.ruoyi.common.enums.BusinessType;
+import com.ruoyi.common.exception.file.FileSizeLimitExceededException;
 import com.ruoyi.common.utils.file.FileUploadUtils;
 import com.ruoyi.common.utils.file.FileUtils;
 import com.ruoyi.common.utils.poi.ExcelUtil;
@@ -16,6 +17,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.Mapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
@@ -41,6 +43,10 @@ public class DcFileDownloadController extends BaseController {
     private IDcFileDownloadService dcFileDownloadService;
     @Autowired
     private ServerConfig serverConfig;
+    /**
+     * 默认大小 20M
+     */
+    public static final long DEFAULT_MAX_SIZE = 20 * 1024 * 1024;
     /**
      * 查询文件管理列表
      */
@@ -114,12 +120,23 @@ public class DcFileDownloadController extends BaseController {
             String filePath = RuoYiConfig.getFileManagementPath();
             // 上传并返回新文件名称
             String fileName = FileUploadUtils.upload(filePath, file);
+            //文件后缀
+            String extension = FileUploadUtils.getExtension(file);
+            //文件大小，单位为B
+            long size = file.getSize();
+            //文件大小验证
+            if (size > DEFAULT_MAX_SIZE)
+            {
+                throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE / 1024 / 1024);
+            }
             String url = serverConfig.getUrl() + fileName;
             AjaxResult ajax = AjaxResult.success();
             ajax.put("url", url);
             ajax.put("fileName", fileName);
             ajax.put("newFileName", FileUtils.getName(fileName));
             ajax.put("originalFilename", file.getOriginalFilename());
+            ajax.put("extension", extension);
+            ajax.put("size", size);
             return ajax;
         }
         catch (Exception e)
@@ -127,5 +144,10 @@ public class DcFileDownloadController extends BaseController {
             return AjaxResult.error(e.getMessage());
         }
     }
+    //下载请求接口-下载数量+1
+    @GetMapping("/downloadIncrease/{id}")
+    public AjaxResult downloadIncrease(@PathVariable Long id) {
+        return toAjax(dcFileDownloadService.downloadIncrease(id));
+    }
 
 }
diff --git a/zc-business/src/main/java/com/zc/business/domain/DcFileDownload.java b/zc-business/src/main/java/com/zc/business/domain/DcFileDownload.java
index 38fbe723..3e89b3b1 100644
--- a/zc-business/src/main/java/com/zc/business/domain/DcFileDownload.java
+++ b/zc-business/src/main/java/com/zc/business/domain/DcFileDownload.java
@@ -25,8 +25,41 @@ public class DcFileDownload extends BaseEntity
     /** 文件地址 */
     @Excel(name = "文件地址")
     private String fileAddress;
+    /** 文件大小 */
+    @Excel(name = "文件大小(单位B)")
+    private Long size;
 
+    /** 文件后缀 */
+    @Excel(name = "文件后缀")
+    private String extension;
 
+    /** 文件后缀 */
+    @Excel(name = "文件下载次数")
+    private Integer number;
+
+    public Integer getNumber() {
+        return number;
+    }
+
+    public void setNumber(Integer number) {
+        this.number = number;
+    }
+
+    public Long getSize() {
+        return size;
+    }
+
+    public void setSize(Long size) {
+        this.size = size;
+    }
+
+    public String getExtension() {
+        return extension;
+    }
+
+    public void setExtension(String extension) {
+        this.extension = extension;
+    }
 
     public void setId(Long id)
     {
diff --git a/zc-business/src/main/java/com/zc/business/mapper/DcFileDownloadMapper.java b/zc-business/src/main/java/com/zc/business/mapper/DcFileDownloadMapper.java
index f17bec7e..8a3bd53b 100644
--- a/zc-business/src/main/java/com/zc/business/mapper/DcFileDownloadMapper.java
+++ b/zc-business/src/main/java/com/zc/business/mapper/DcFileDownloadMapper.java
@@ -58,4 +58,6 @@ public interface DcFileDownloadMapper
      * @return 结果
      */
     int deleteDcFileDownloadByIds(Long[] ids);
+    //下载请求接口-下载数量+1
+    int downloadIncrease(Long id);
 }
diff --git a/zc-business/src/main/java/com/zc/business/service/IDcFileDownloadService.java b/zc-business/src/main/java/com/zc/business/service/IDcFileDownloadService.java
index f5ce7c0a..4da3b554 100644
--- a/zc-business/src/main/java/com/zc/business/service/IDcFileDownloadService.java
+++ b/zc-business/src/main/java/com/zc/business/service/IDcFileDownloadService.java
@@ -58,4 +58,6 @@ public interface IDcFileDownloadService
      * @return 结果
      */
     int deleteDcFileDownloadById(Long id);
+    //下载请求接口-下载数量+1
+    int downloadIncrease(Long id);
 }
diff --git a/zc-business/src/main/java/com/zc/business/service/impl/DcFileDownloadServiceImpl.java b/zc-business/src/main/java/com/zc/business/service/impl/DcFileDownloadServiceImpl.java
index 2ad1c9db..585adf23 100644
--- a/zc-business/src/main/java/com/zc/business/service/impl/DcFileDownloadServiceImpl.java
+++ b/zc-business/src/main/java/com/zc/business/service/impl/DcFileDownloadServiceImpl.java
@@ -96,4 +96,9 @@ public class DcFileDownloadServiceImpl implements IDcFileDownloadService
     {
         return dcFileDownloadMapper.deleteDcFileDownloadById(id);
     }
+    //下载请求接口-下载数量+1
+    @Override
+    public int downloadIncrease(Long id) {
+        return dcFileDownloadMapper.downloadIncrease(id);
+    }
 }
diff --git a/zc-business/src/main/resources/mapper/business/DcFileDownloadMapper.xml b/zc-business/src/main/resources/mapper/business/DcFileDownloadMapper.xml
index d780de17..9151919f 100644
--- a/zc-business/src/main/resources/mapper/business/DcFileDownloadMapper.xml
+++ b/zc-business/src/main/resources/mapper/business/DcFileDownloadMapper.xml
@@ -12,10 +12,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="createBy"    column="create_by"    />
         <result property="updateTime"    column="update_time"    />
         <result property="updateBy"    column="update_by"    />
+        <result property="size"    column="size"    />
+        <result property="extension"    column="extension"    />
+        <result property="number"    column="number"    />
     </resultMap>
 
     <sql id="selectDcFileDownloadVo">
-        select id, file_name, file_address, create_time, create_by, update_time, update_by from dc_file_download
+        select id,number,size,extension, file_name, file_address, create_time, create_by, update_time, update_by from dc_file_download
     </sql>
 
     <select id="selectDcFileDownloadList" parameterType="DcFileDownload" resultMap="DcFileDownloadResult">
@@ -41,6 +44,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="createBy != null">create_by,</if>
             <if test="updateTime != null">update_time,</if>
             <if test="updateBy != null">update_by,</if>
+            <if test="size != null">size,</if>
+            <if test="extension != null">extension,</if>
          </trim>
         <trim prefix="values (" suffix=")" suffixOverrides=",">
             <if test="fileName != null">#{fileName},</if>
@@ -49,6 +54,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="createBy != null">#{createBy},</if>
             <if test="updateTime != null">#{updateTime},</if>
             <if test="updateBy != null">#{updateBy},</if>
+            <if test="size != null">#{size},</if>
+            <if test="extension != null">#{extension},</if>
          </trim>
     </insert>
 
@@ -61,9 +68,15 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="createBy != null">create_by = #{createBy},</if>
             <if test="updateTime != null">update_time = #{updateTime},</if>
             <if test="updateBy != null">update_by = #{updateBy},</if>
+            <if test="size != null">size = #{size},</if>
+            <if test="extension != null">extension = #{extension},</if>
         </trim>
         where id = #{id}
     </update>
+    <update id="downloadIncrease">
+        update dc_file_download set number=number+1 where id=#{id}
+    </update>
+
 
     <delete id="deleteDcFileDownloadById" parameterType="Long">
         delete from dc_file_download where id = #{id}