使用java查找包含mongodb中特定值的数组的文档

Question

According to the answer provided in this link: Find document with array that contains a specific value , i have tried getting the items in java using this statement

searchQuery.put("arrayMine", new BasicDBObject("$in","[xxx]"));
OR
searchQuery.put("arrayMine", new BasicDBObject("$in","xxx"));

But it keeps saying the $in value must be an array while my arrayMine is an array. What should be the correct syntax in java?

Answer 1

Both variants you have are treating the value of BasicDBObject as String .

Use

searchQuery.put("arrayMine", new BasicDBObject("$in",Arrays.asList("xxx"))