Specify multiple criteria's in spring mongo db query

user_300520 0
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I am iterating over a list of key/value pairs and executing find for each key/value. Can I create a single query document to be kind of union in sql, So that there will be only one database call.

    List<User> userList = new ArrayList<User>();
    for (Map accounts:attributes) {
        Query query = new Query();
        List<Criteria> andCriteriaList = new ArrayList<Criteria>();
        accounts.forEach((key, value) -> {
            Criteria criteria = Criteria.where((String) key).is(value);
            andCriteriaList.add(criteria);
        });
        query.addCriteria(new Criteria().andOperator(andCriteriaList.toArray(new Criteria[andCriteriaList.size()])));
        if (mongoTemplate.exists(query, User.class)) {
            userList.add((User)mongoTemplate.find(query, User.class));
            //System.out.println(mongoTemplate.find(query, User.class));
        }

Thanks,

spring-data spring-data-mongodb mongodb
2 Answers

if you want to query multiple fields(field1, field2, ....) with values below is the solution

Query query = new Query();
List<Criteria> criteria = new ArrayList<>();

criteria.add(Criteria.where(field1).is(field1val));
criteria.add(Criteria.where(field2).is(field2val));
// you can add all your fields here as above

query.addCriteria(new Criteria().andOperator(criteria.toArray(new Criteria[criteria.size()])));
List<JSONObject> filteredVals = mongoOperations.find(query, JSONObject.class);

the above return filteredVals is JSONObject

user_32828650
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