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问题描述
我收到以下错误:
I am getting the following error:
程序无法获取集合属性.
Program can't fetch collections attributes.
MongoClient mongoClient = new MongoClient(new ServerAddress("localhost", 27017)); MongoDatabase db = mongoClient.getDatabase("local"); MongoCollection collection = db.getCollection("sadi"); BasicDBObject searchQuery = new BasicDBObject(); searchQuery.put("name","amran"); DBCursor cursor = collection.find(searchQuery);推荐答案
尝试一下:
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(); }由于3.0系列Java驱动程序中与数据库,集合等相关的更改很多,请通过快速浏览更多的了解.
As there are many changes in 3.0 series java driver related to database, collection,etc. Please go through quick tour for more understanding.
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MongoDB通过Java驱动程序获取集合
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