diff --git a/src/main/java/com/mobile_education_platform/controller/NoticeController.java b/src/main/java/com/mobile_education_platform/controller/NoticeController.java
index 5f67dafad8ff537499b59ce8eb4067b45b45d1a7..89eec57a7752ea5f52a7c7bc01068d14b51fb6f1 100644
--- a/src/main/java/com/mobile_education_platform/controller/NoticeController.java
+++ b/src/main/java/com/mobile_education_platform/controller/NoticeController.java
@@ -3,9 +3,7 @@ package com.mobile_education_platform.controller;
 
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
-import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import com.hazelcast.internal.json.Json;
 import com.mobile_education_platform.common.R;
 import com.mobile_education_platform.pojo.*;
 import com.mobile_education_platform.pojo.Class;
@@ -16,7 +14,6 @@ import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiImplicitParam;
 import io.swagger.annotations.ApiImplicitParams;
 import io.swagger.annotations.ApiOperation;
-import org.apache.commons.collections.map.LinkedMap;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
@@ -165,9 +162,11 @@ public class NoticeController {
         if (!saveNotice) {
             return R.error("保存通知失败！请检查是否有误！");
         }
+        //对刚保存的通知，获取生成的ID
+        String noticeId = noticeService.getAddNoticeId(notice);
         for(String classId:classIds){
             ClassNotice classNotice = new ClassNotice();
-            classNotice.setNoticeId(notice.getId());
+            classNotice.setNoticeId(noticeId);
             classNotice.setClassId(classId);
             boolean saveClassNotice = classNoticeService.save(classNotice);
             if (!saveClassNotice) {
diff --git a/src/main/java/com/mobile_education_platform/service/NoticeService.java b/src/main/java/com/mobile_education_platform/service/NoticeService.java
index 32ce288301fdc01e908e50aa8d9cabce88eb5b55..1251f907eaddb1e9d0cc0d9726929e18502b109b 100644
--- a/src/main/java/com/mobile_education_platform/service/NoticeService.java
+++ b/src/main/java/com/mobile_education_platform/service/NoticeService.java
@@ -48,4 +48,14 @@ public interface NoticeService extends IService<Notice> {
      * @throws IOException
      */
     String sendSubscribeMessage(WxMsgVO vo) throws IOException;
+
+    /**
+     * 功能: 刚保存的通知生成ID后，对ID进行获取
+     * @author: ChenZiKang
+     * @Created: 2021/10/28 9:09
+     * @param notice 通知
+     * @return 通知ID
+     */
+    String getAddNoticeId(Notice notice);
+
 }
diff --git a/src/main/java/com/mobile_education_platform/service/impl/NoticeServiceImpl.java b/src/main/java/com/mobile_education_platform/service/impl/NoticeServiceImpl.java
index abf29355b3b4895d8ff9e7876c1bd2f4d832e74e..0d346fc42c1cbed4b79540863791525f2c2acb77 100644
--- a/src/main/java/com/mobile_education_platform/service/impl/NoticeServiceImpl.java
+++ b/src/main/java/com/mobile_education_platform/service/impl/NoticeServiceImpl.java
@@ -128,4 +128,22 @@ public class NoticeServiceImpl extends ServiceImpl<NoticeMapper, Notice> impleme
 
         return info;
     }
+
+    /**
+     * 功能: 刚保存的通知生成ID后，对ID进行获取
+     * @author: ChenZiKang
+     * @Created: 2021/10/28 9:09
+     * @param notice 通知
+     * @return 通知ID
+     */
+    @Override
+    public String getAddNoticeId(Notice notice) {
+        QueryWrapper<Notice> queryWrapper=new QueryWrapper<>();
+        queryWrapper.eq("title",notice.getTitle());
+        queryWrapper.eq("content",notice.getContent());
+        queryWrapper.eq("promulgator_id",notice.getPromulgatorId());
+        queryWrapper.eq("is_deleted",notice.getIsDeleted());
+        Notice result = baseMapper.selectOne(queryWrapper);
+        return result.getId();
+    }
 }