好的,我有一个简单的问题。我在MongoDB中有一个简单的文档,其中包含一个名为“罚分”的子文档。 现在我想通过子文档(“罚分”)中的字符串找到文档(这里带有_id“Cammeritz”),例如, “penaltyid = 0f77d885-6597-3f47-afb1-0cee2ea3ece1”。你能帮我吗?最好的解释是Java,但如果你只是提供一个正常的MongoDB查询帮助,那也是可以的。查询在MongoDB中查找子文档
{
"_id" : "Cammeritz",
"penalties" : [
{
"_id" : null,
"date" : ISODate("2017-09-25T20:01:23.582Z"),
"penaltyid" : "0f77d885-6597-3f47-afb1-0cee2ea3ece1",
"reason" : "Hacking",
"teammember" : "Luis",
"type" : "ban"
},
{
"_id" : null,
"date" : ISODate("2017-09-25T20:01:23.594Z"),
"penaltyid" : "7f5411b0-e66a-33b3-ac4f-4f3159aa88a9",
"reason" : "Spam",
"teammember" : "BluingFX",
"type" : "kick"
}
],
"isBanned" : true,
"isMuted" : false
}
可能重复[MongoDB:在数组匹配参数中查找子文档](https://stackoverflow.com/questions/11823296/mongodb-find-subdocument-in-array-matching-parameters) –