csharp MongoDB C＃代码

Posted 2021-05-12

using MongoDB.Bson;
using MongoDB.Driver;


namespace Real_Time_Dashboard
{
    class mongoDb
    {
        IMongoDatabase iotDb = null;
        IMongoCollection<BsonDocument> tempCollection = null;
        IMongoCollection<BsonDocument> humCollection = null;

       public mongoDb() {
            MongoClient mongoClient = new MongoClient("mongodb://localhost:27017");
            iotDb = mongoClient.GetDatabase("iotdash");
            tempCollection = iotDb.GetCollection<BsonDocument>("tempCol");
            humCollection = iotDb.GetCollection<BsonDocument>("humCol");
        }

        public IMongoCollection<BsonDocument> TempCollection() {
            return tempCollection;
         }

        public IMongoCollection<BsonDocument> HumidityCollection()  {
            return humCollection;
        }
    }
}

 
 MongoDbClass mDb = new MongoDbClass();
 
 private void GetCollectionBack()
        {
            var cursor = mDb.TempCollection().Find<BsonDocument>(new BsonDocument()).ToCursor();
              foreach (var doc in cursor.ToEnumerable())
            {
                string column1 = doc.GetString("ColumnOne");
                string column2 = doc.GetSTring("ColumnTwo");
            }
        }