diff --git a/reggie_server/src/main/java/com/reggie/controller/admin/CategoryController.java b/reggie_server/src/main/java/com/reggie/controller/admin/CategoryController.java
index 6ab877d..61ebad1 100644
--- a/reggie_server/src/main/java/com/reggie/controller/admin/CategoryController.java
+++ b/reggie_server/src/main/java/com/reggie/controller/admin/CategoryController.java
@@ -33,7 +33,7 @@ public class CategoryController {
     public R<String> save(@RequestBody CategoryDTO categoryDTO) {
         log.info("新增分类:{}", categoryDTO);
         categoryService.save(categoryDTO);
-        return R.success("添加成功");
+        return R.success("分类添加成功");
     }
 
 
@@ -62,7 +62,20 @@ public R<PageResult> page(CategoryPageQueryDTO categoryPageQueryDTO) {
     public R<String> deleteById(Long id) {
         log.info("删除分类:{}", id);
         categoryService.deleteById(id);
-        return R.success("删除成功");
+        return R.success("分类删除成功");
+    }
+
+    /**
+     * 修改分类
+     * @param categoryDTO 修改id 修改name 修改sort
+     * @return success
+     */
+    @PutMapping
+    @ApiOperation("修改分类")
+    public R<String> update(@RequestBody CategoryDTO categoryDTO) {
+        log.info("修改分类:{}", categoryDTO);
+        categoryService.update(categoryDTO);
+        return R.success("分类修改成功");
     }
 
 
diff --git a/reggie_server/src/main/java/com/reggie/mapper/CategoryMapper.java b/reggie_server/src/main/java/com/reggie/mapper/CategoryMapper.java
index 2b1dd6f..1598f63 100644
--- a/reggie_server/src/main/java/com/reggie/mapper/CategoryMapper.java
+++ b/reggie_server/src/main/java/com/reggie/mapper/CategoryMapper.java
@@ -20,4 +20,8 @@ public interface CategoryMapper {
 
     //删除分类
     void deleteById(Long id);
+
+    @AutoFill(type = AutoFillConstant.UPDATE)
+    //修改分类
+    void update(Category category);
 }
diff --git a/reggie_server/src/main/java/com/reggie/service/CategoryService.java b/reggie_server/src/main/java/com/reggie/service/CategoryService.java
index 6b2e9de..181002c 100644
--- a/reggie_server/src/main/java/com/reggie/service/CategoryService.java
+++ b/reggie_server/src/main/java/com/reggie/service/CategoryService.java
@@ -3,9 +3,7 @@
 
 import com.reggie.dto.CategoryDTO;
 import com.reggie.dto.CategoryPageQueryDTO;
-import com.reggie.mapper.CategoryMapper;
 import com.reggie.result.PageResult;
-import org.springframework.beans.factory.annotation.Autowired;
 
 public interface CategoryService {
     //新增分类
@@ -16,4 +14,7 @@ public interface CategoryService {
 
     //根据id删除分类
     void deleteById(Long id);
+
+    //修改分类
+    void update(CategoryDTO categoryDTO);
 }
diff --git a/reggie_server/src/main/java/com/reggie/service/impl/CategoryServiceImpl.java b/reggie_server/src/main/java/com/reggie/service/impl/CategoryServiceImpl.java
index 6479543..fece5a0 100644
--- a/reggie_server/src/main/java/com/reggie/service/impl/CategoryServiceImpl.java
+++ b/reggie_server/src/main/java/com/reggie/service/impl/CategoryServiceImpl.java
@@ -88,4 +88,19 @@ public void deleteById(Long id) {
         //删除分类
         categoryMapper.deleteById(id);
     }
+
+
+    /**
+     * 修改分类
+     *
+     * @param categoryDTO 修改id 修改name 修改sort
+     */
+    public void update(CategoryDTO categoryDTO) {
+        //拷贝数据
+        Category category = new Category();
+        BeanUtils.copyProperties(categoryDTO,category);
+
+        categoryMapper.update(category);
+
+    }
 }
diff --git a/reggie_server/src/main/resources/mapper/CategoryMapper.xml b/reggie_server/src/main/resources/mapper/CategoryMapper.xml
index 39c4d2a..66c28e6 100644
--- a/reggie_server/src/main/resources/mapper/CategoryMapper.xml
+++ b/reggie_server/src/main/resources/mapper/CategoryMapper.xml
@@ -30,4 +30,31 @@
         from category
         where id = #{id}
     </delete>
+
+
+    <!--修改分类-->
+    <update id="update">
+        update category
+        <set>
+            <if test="type != null">
+                type = #{type},
+            </if>
+            <if test="name != null and name !=''">
+                name = #{name},
+            </if>
+            <if test="sort != null">
+                sort = #{sort},
+            </if>
+            <if test="status != null">
+                status = #{status},
+            </if>
+            <if test="updateTime != null">
+                update_time = #{updateTime},
+            </if>
+            <if test="updateUser != null">
+                update_user = #{updateUser}
+            </if>
+        </set>
+        where id = #{id}
+    </update>
 </mapper>