Question

我试图从mongoDB的集合中获取所有文档，我正在使用spring。

MongoTemplate  mongoOperation = SpringMongoConfig1.mongoTemplate()

在monngoOperation中，我没有找到任何返回集合中所有文档的方法。任何人都可以帮忙吗？

Answer 1

如果要查找JavaDocumentName的所有文档（java中的任何集合名称）

List<JavaDocumentName> listRes = mongoOperation.findAll(JavaDocumentName.class);

Answer 2

您可以这样做：

//If you don't need connection's configures. i.e. your mongo is in you localhost at 127.0.0.1:27017
MongoClient cliente = new MongoClient(); //to connect into a mongo DB

MongoDatabase mongoDb = client.getDatabase("DBname");  //get database, where DBname is the name of your database

MongoCollection<Document> robosCollection = mongoDb.getCollection("collectionName"); //get the name of the collection that you want

MongoCursor<Document> cursor =  robosCollection.find().cursor();//Mongo Cursor interface implementing the iterator protocol

    cursor.forEachRemaining(System.out::println); //print all documents in Collection using method reference

如何使用spring

2 个答案: