prova detta:
import org.bson.Document;
import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import com.mongodb.ServerAddress;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
MongoClient mongoClient = new MongoClient(new ServerAddress("localhost", 27017));
MongoDatabase db = mongoClient.getDatabase("local");
MongoCollection<Document> collection = db.getCollection("sadi");
BasicDBObject searchQuery = new BasicDBObject();
searchQuery.put("name","amran");
MongoCursor<Document> cursor = collection.find(searchQuery).iterator();
try {
while (cursor.hasNext()) {
System.out.println(cursor.next().toJson());
}
} finally {
cursor.close();
}
Eftersom det finns många förändringar i 3.0-seriens java-drivrutin relaterade till databas, samling, etc. Gå igenom snabbtur för mer förståelse.