使用mongotemplate

Question

这是一份现有文件：

{
    "_id": ObjectId("58bfe67c71043e8947d487c7"),
    "_class": "com.plash.configurator.model.GmailMailData",
    "useremail": "xyx@gmail.com",
    "threadidslist": [
     {
       "threadid": "15aac9952c924e6c",
       "subject": "dd",
       "messagelist": [
         {
           "messageid": "15aad9c4ebba913c",
           "timestamp": "Wed Mar 08 11:09:45 UTC 2017",
           "from": "utsavanand.work@gmail.com",
           "body": "<div dir=\"ltr\">ddd</div>\r\n",
           "labelid": "RECEIVED"
         }
       ]
     }
    ]
}

我使用的查询是：

Update update = new Update();
update.addToSet("messagelist", gm); //gm is the object of messaglist
Criteria criteria =  Criteria.where("useremail").is(useremailid)
                             .and("threadidslist.threadid").is(threadid);
mongoTemplate.updateFirst(Query.query(criteria), update, GmailMailData.class);

此查询在顶层插入对象，但我希望将对象添加到消息列表中。

如果 useremail 和 threadid 匹配，如何在留言列表中添加新对象？

Answer 1

此查询有效：

 Query query = new Query(Criteria.where("useremail").is(useremailid).and("threadidslist.threadid").is(threadid));
            update.push("threadidslist.$.messagelist", gm);
            mongoTemplate.updateFirst(query, update, GmailMailData.class);