diff --git a/src/main/java/com/lovenav/controller/BannersController.java b/src/main/java/com/lovenav/controller/BannersController.java
index 9dceb8b..9600049 100644
--- a/src/main/java/com/lovenav/controller/BannersController.java
+++ b/src/main/java/com/lovenav/controller/BannersController.java
@@ -9,31 +9,30 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
-@RequestMapping("/banners")
 public class BannersController {
     @Autowired
     private BannersService bannersService;
 
     //    跳转链接
-    @RequestMapping(method = RequestMethod.GET, value = "/jump_url")
+    @RequestMapping(method = RequestMethod.GET, value = "/banners/jump_url")
     public String jump(int id) {
         return bannersService.Jump_url(id);
     }
 
     //    添加banner
-    @RequestMapping(method = RequestMethod.POST, value = "/add_banner")
-    public String add(@RequestBody Banners banners) {
+    @RequestMapping( "/banners/add_banner")
+    public String add(Banners banners) {
         return bannersService.Add_banner(banners);
     }
 
     //    删除banner
-    @RequestMapping(method = RequestMethod.GET, value = "/delete_url")
+    @RequestMapping(method = RequestMethod.GET, value = "/banners/delete_url")
     public String delete(int id) {
         return bannersService.Delete_banner(id);
     }
 
     //     首页显示banner
-    @RequestMapping(method = RequestMethod.GET, value = "/view_banner")
+    @RequestMapping(method = RequestMethod.GET, value = "/banners/view_banner")
     public String view() {
         return bannersService.View_banner();
     }
diff --git a/src/main/java/com/lovenav/controller/CommentController.java b/src/main/java/com/lovenav/controller/CommentController.java
index 8d06419..0f8dbeb 100644
--- a/src/main/java/com/lovenav/controller/CommentController.java
+++ b/src/main/java/com/lovenav/controller/CommentController.java
@@ -1,5 +1,7 @@
 package com.lovenav.controller;
 
+import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.JSONObject;
 import com.lovenav.entity.Comment;
 import com.lovenav.entity.CommentNode;
 import com.lovenav.entity.CommentUser;
@@ -10,6 +12,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.HashMap;
 import java.util.List;
 
 
@@ -66,4 +69,13 @@ public class CommentController {
     public ResponseEntity<CommentUser> queryObserveUserById (Integer Id) {
         return ResponseEntity.ok(commentService.queryCommentUserById(Id));
     }
+
+    @RequestMapping("/comment/deleteByCommentId")
+    public String deleteByCommentId(Integer commentId)
+    {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", 200);
+        result.put("msg", commentService.SelectChildAndDelete(commentId));
+        return JSONObject.toJSONString(result);
+    }
 }
diff --git a/src/main/java/com/lovenav/dao/CommentDao.java b/src/main/java/com/lovenav/dao/CommentDao.java
index e779469..0e93025 100644
--- a/src/main/java/com/lovenav/dao/CommentDao.java
+++ b/src/main/java/com/lovenav/dao/CommentDao.java
@@ -43,4 +43,6 @@ public interface CommentDao {
      */
 
     List<CommentNode> querySecondCommentList(Integer UrlId);
+
+    public String queryChildId(Integer commentId);
 }
\ No newline at end of file
diff --git a/src/main/java/com/lovenav/service/CommentService.java b/src/main/java/com/lovenav/service/CommentService.java
index 478f791..bd4758d 100644
--- a/src/main/java/com/lovenav/service/CommentService.java
+++ b/src/main/java/com/lovenav/service/CommentService.java
@@ -26,4 +26,6 @@ public interface CommentService {
     List<CommentNode> queryCommentByUrlId (Integer UrlId );
 
     CommentUser queryCommentUserById(Integer id);
+
+    public String SelectChildAndDelete(Integer commentId);
 }
diff --git a/src/main/java/com/lovenav/service/serviceImpl/BannersServiceImpl.java b/src/main/java/com/lovenav/service/serviceImpl/BannersServiceImpl.java
index fda9a46..3dc8c8d 100644
--- a/src/main/java/com/lovenav/service/serviceImpl/BannersServiceImpl.java
+++ b/src/main/java/com/lovenav/service/serviceImpl/BannersServiceImpl.java
@@ -6,6 +6,8 @@ import com.lovenav.entity.Banners;
 import com.lovenav.service.BannersService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+
+import java.util.Date;
 import java.util.List;
 import java.util.HashMap;
 
@@ -31,10 +33,14 @@ public class BannersServiceImpl implements BannersService {
 //  添加banner
     @Override
     public String Add_banner(Banners banners) {
+        Date date = new Date(System.currentTimeMillis());
+        banners.setCreatetime(date);
         int result = bannersDao.insert(banners);
         HashMap<String, Object> hashMap = new HashMap<>();
         if(result>0){
-            return JSON.toJSONString(banners);
+            hashMap.put("code",200);
+            hashMap.put("msg","添加成功");
+            return JSON.toJSONString(hashMap);
         }else{
             hashMap.put("code",500);
             hashMap.put("msg","添加banner失败");
diff --git a/src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java b/src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java
index c281153..1b0eefc 100644
--- a/src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java
+++ b/src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java
@@ -10,6 +10,7 @@ import com.lovenav.entity.CommentUser;
 import com.lovenav.entity.User;
 import com.lovenav.service.CommentService;
 import io.swagger.models.auth.In;
+import org.checkerframework.checker.units.qual.C;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -178,5 +179,21 @@ public class CommentServiceImpl implements CommentService {
         }
         return firstList;
     }
+    public String SelectChildAndDelete(Integer commentId)
+    {
+
+        String child = commentDao.queryChildId(commentId);
+        String [] childrens = child.split(",");
+        int flag = 0;
+        for(String id : childrens)
+        {
+            flag = commentDao.deleteByPrimaryKey(Integer.valueOf(id));
+            if (String.valueOf(flag).equals("0")){
+                return "出现错误";
+            }
+        }
+        return "处理完成";
+    }
+
 
 }
diff --git a/src/main/resources/mybatis/CommentDao.xml b/src/main/resources/mybatis/CommentDao.xml
index 7e9a7cc..1422e1b 100644
--- a/src/main/resources/mybatis/CommentDao.xml
+++ b/src/main/resources/mybatis/CommentDao.xml
@@ -55,6 +55,21 @@
     delete from ln_comment
     where id = #{id,jdbcType=INTEGER}
   </delete>
+
+  <select id="queryChildId" parameterType="java.lang.Integer" resultType="java.lang.String">
+    SELECT t3.ischild
+    FROM(SELECT t1.*,
+                IF (FIND_IN_SET(root_comment_id, @pids) > 0,@pids := CONCAT(@pids, ',', id),'0') AS ischild
+         FROM(SELECT t.id,t.root_comment_id
+              FROM ln_comment AS t
+              ORDER BY t.id ASC) t1,
+             (SELECT @pids := #{commentId,jdbcType=INTEGER}) t2) t3
+    WHERE ischild != '0'
+    order by id desc
+    limit 1
+  </select>
+
+
   <insert id="insert" keyColumn="id" keyProperty="id" parameterType="com.lovenav.entity.Comment" useGeneratedKeys="true">
     insert into ln_comment (url_id, user_id, content, 
       root_comment_id, like_count, comment_time,