钉钉会议接口对接

blade-service/blade-dingding/src/main/java/org/springblade/dingding/service/impl/MeetingServiceImpl.java

@@ -153,13 +153,13 @@ public class MeetingServiceImpl implements MeetingService {
                // 获取memberModelMap
                JSONArray memberModels = jsonObject.getJSONArray("memberModels");
                Set<String> set=new HashSet<>();
-               if(!memberModels.isEmpty()){
+               if(memberModels!=null&&!memberModels.isEmpty()){
                    for (int i = 0; i < memberModels.size(); i++) {
                        JSONObject memberModel = memberModels.getJSONObject(i);
                        String userNick = memberModel.getString("userNick");
                        set.add(userNick);
                    }
-                   return String.join(",",set);
+                   return String.join("、",set);
                }else {
                    return "";
                }