通知对象

sapi/src/main/java/com/xhkjedu/sapi/controller/notice/NoticeController.java

 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
+import java.util.stream.Collectors;
 
 /**
 * @author ywx
         Integer noticeid = nu.getNoticeid();
         Integer page = nu.getPage();
         Integer pageSize = nu.getPageSize();
-        N_Utils.validation(new Object[]{noticeid, "通知id", 1, page, "显示页码", 1, pageSize, "显示条数"});
+        N_Utils.validation(new Object[]{noticeid, "通知id", 1, page, "显示页码", 1, pageSize, "显示条数", 1});
         PageHelper.startPage(page, pageSize);
         List<Map> list = noticeService.listUser(nu);
         PageResult pageResult = PageUtil.getPageResult(new PageInfo(list));
+        List<Map> list1 = (List<Map>) pageResult.getList();
+        Map<Object, List<Map>> gMap = list1.stream().collect(Collectors.groupingBy(m -> m.get("gradeid")));
+        List<Map<String, Object>> grades = new ArrayList<>();
+        for (Map.Entry<Object, List<Map>> entry : gMap.entrySet()) {
+            Map<String, Object> g = new LinkedHashMap<>();
+            g.put("gradeid", entry.getKey());
+            //List<Map<Object, List<Map>>> subjectClass = new ArrayList<>();
+            /*List<Map> subjectClass = entry.getValue();
+            Map<String, List<Map>> collect = users.stream().collect(Collectors.groupingBy(m -> m.get("subjectid").toString() + m.get("classid")));
+            for (Map.Entry<String, List<Map>> uentry : collect.entrySet()) {
+                List<Map> value = uentry.getValue();
+                Map map = value.get(0);
+                Map sc = new LinkedHashMap();
+                sc.put("subjectid", map.get("subjectid"));
+                sc.put("classid", map.get("classid"));
+                sc.put("name", map.get("name"));
+                sc.put("users", value);
+                subjectClass.add(sc);
+            }*/
+            g.put("subjectClass", entry.getValue());
+            grades.add(g);
+        }
+        pageResult.setList(grades);
         return new ResultVo(0, "获取通知对象成功", pageResult);
     }
 
+    /**
+     * @Description 获取通知科目和班级
+     * @Date 2023/12/25 14:20
+     * @Author YWX
+     * @Param [nu]
+     * @Return com.xhkjedu.vo.ResultVo
+     **/
+    @PostMapping("/list_sc")
+    public ResultVo listSubjectAndClass(@RequestBody TNoticeUser nu) {
+        Integer noticeid = nu.getNoticeid();
+        N_Utils.validation(new Object[]{noticeid, "通知id", 1});
+        Map map = noticeService.listSubjectAndClass(noticeid);
+        return new ResultVo(0, "获取通知科目和班级成功", map);
+    }
+
     /*
      * @Description 处理班级通知到学生个人
      * @Date 2023/12/18 17:41:09

sapi/src/main/java/com/xhkjedu/sapi/mapper/notice/NoticeUserMapper.java

 
     //删除通知对象
     void deleteByNoticeId(@Param("noticeid") Integer noticeid);
+
+    //获取通知科目和班级
+    List<TNoticeUser> listSubjectAndClass(@Param("noticeid") Integer noticeid);
 }

sapi/src/main/java/com/xhkjedu/sapi/service/notice/NoticeService.java

             }
         }
     }
+
+    /**
+     * @Description 获取通知科目和班级
+     * @Date 2023/12/25 14:19
+     * @Author YWX
+     * @Param [noticeid]
+     * @Return java.util.Map
+     **/
+    public Map listSubjectAndClass(Integer noticeid) {
+        Map<String, Object> map = new LinkedHashMap<>();
+        List<TNoticeUser> users = noticeUserMapper.listSubjectAndClass(noticeid);
+        List<Map<String, Integer>> grades = new ArrayList<>();
+        List<Map<String, Object>> subjects = new ArrayList<>();
+        List<Map<String, Object>> classes = new ArrayList<>();
+        for (TNoticeUser user : users) {
+            String subjectid = user.getSubjectid();
+            Integer gradeid = user.getGradeid();
+            Map<String, Integer> g = new LinkedHashMap<>();
+            g.put("gradeid", gradeid);
+            grades.add(g);
+            Map<String, Object> sc = new LinkedHashMap<>();
+            String username = user.getUsername();
+            if (N_Utils.isEmpty(subjectid)) {
+                sc.put("gradeid", gradeid);
+                sc.put("classid", user.getClassid());
+                sc.put("classname", username);
+                classes.add(sc);
+            } else {
+                sc.put("subjectid", subjectid);
+                sc.put("subjectname", username);
+                subjects.add(sc);
+            }
+        }
+        grades.sort(Comparator.comparing(m -> m.get("gradeid")));
+        map.put("grades", grades.stream().distinct().collect(Collectors.toList()));
+        map.put("subjects", subjects.stream().distinct().collect(Collectors.toList()));
+        map.put("classes", classes);
+        return map;
+    }
 }

sapi/src/main/resources/mapper/notice/NoticeUserMapper.xml

         <if test="nu.readed!=null and nu.readed!=-1">and nu.readed=#{nu.readed}</if>
         <if test="nu.username!=null and nu.username!=''">and u.username like '%${nu.username}%'</if>
     </select>
+    <!--获取通知科目和班级-->
+    <select id="listSubjectAndClass" resultType="com.xhkjedu.sapi.model.notice.TNoticeUser">
+        select nu.gradeid,nu.classid,nu.subjectid
+        ,if(nu.classid is not null,(select c.classname from t_class c where c.classid=nu.classid)
+            ,(select s.subjectname from t_subject s where s.subjectid=nu.subjectid))username
+        from t_notice_user nu where noticeid=#{noticeid}
+        group by nu.gradeid,nu.classid,nu.subjectid
+    </select>
 </mapper>