C# Asp.net中简单操作MongoDB数据库（二）

   public class BaseEntity
    {
        /// <summary>
        /// 字段映射，告诉mongodb这个字段在数据库中对应_id
        /// </summary>
        [BsonId]
        //告诉mongodb这个字段在数据库中的类型是ObjectId
        [BsonRepresentation(BsonType.ObjectId)]
        public string _id { get; set; }
    }


   public class IPInfo : BaseEntity
    {
        public string ip { get; set; }

        public string ipAddress { get; set; }

        public string addTime { get; set; }
    }


   public class IPDetails : BaseEntity
    {
        /// <summary>
        /// 主表id
        /// </summary>
        [BsonRepresentation(BsonType.ObjectId)]
        public string parentId { get; set; }
        public string ipAddress { get; set; }
        public string ipNetwork { get; set; }
        public string ipBrowser { get; set; }
        public string addTime { get; set; }
    }

自定义实体类

public class IPInfoFactory
    {
        /// <summary>
        /// 集合（表）名称
        /// </summary>
        private static readonly string CollectionName = "IPInfo";

        //ip子表名称
        private static readonly string ChildCollectionName = "IPDetail";

        private static IMongoDatabase db = MongoDb.GetMongoDb();

        public static List<IPInfo> GetAllList()
        {
            try
            {
                var collection = db.GetCollection<IPInfo>(CollectionName);
                List<IPInfo> list = collection.Find(new BsonDocument()).ToList();
                return list;
            }
            catch (Exception ex)
            {
                return null;
            }
        }

        /// <summary>
        /// 插入主表
        /// </summary>
        /// <returns></returns>
        public static bool Add(string ip, string ipAddress)
        {
            try
            {
                var IPInfoCollection = db.GetCollection<IPInfo>(CollectionName);
                IPInfo ipInfo = new IPInfo();
                ipInfo.ip = ip;
                ipInfo.ipAddress = ipAddress;
                ipInfo.addTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff");
                IPInfoCollection.InsertOne(ipInfo);

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        /// <summary>
        /// 插入主表、子表：
        /// 主表：有则不插入，无则插入;
        /// 子表：一条数据都没有，则插入，已经存在数据，判断是否存在一条相同数据，存在则不插入，不存在则插入。
        /// </summary>
        /// <param name="ip">ip</param>
        /// <param name="model">ip接口获取的信息</param>
        /// <param name="ipBrowser">浏览器</param>
        /// <returns></returns>
        public static bool AddIPInfoAndDetail(string ip, ApiIPInfo model, string ipBrowser = "")
        {
            try
            {
                //ip地址
                var ipAddress = model.Address;
                //ip网络
                var ipNetwork = model.Network;

                var IPInfoCollection = db.GetCollection<IPInfo>(CollectionName);
                var IPDetailCollection = db.GetCollection<IPDetails>(ChildCollectionName);

                //判断主表是否已经存在
                var pFilter = Builders<IPInfo>.Filter.Eq("ip", ip);
                var parentItem = IPInfoCollection.Find(pFilter).FirstOrDefault();
                if (parentItem == null)
                {
                    //插入主表
                    IPInfo ipInfo = new IPInfo();
                    ipInfo.ip = ip;
                    ipInfo.ipAddress = ipAddress;
                    ipInfo.addTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff");
                    IPInfoCollection.InsertOne(ipInfo);

                    //插入子表
                    string parent_id = string.Empty;
                    //刚插入的主表
                    var parentItemNew = IPInfoCollection.Find(pFilter).FirstOrDefault();
                    if (parentItemNew != null)
                    {
                        parent_id = parentItemNew._id;
                        AddChild(parent_id, ipAddress, ipNetwork, ipBrowser);
                    }
                }
                else
                {
                    string parent_id = parentItem._id;
                    var childFilter1 = Builders<IPDetails>.Filter.Eq("parentId", parent_id);
                    var childItem = IPDetailCollection.Find(childFilter1).FirstOrDefault();
                    if (childItem == null)
                    {
                        AddChild(parent_id, ipAddress, ipNetwork, ipBrowser);
                    }
                    else
                    {
                        //如果没有类似的数据，则插入
                        var filterBuilder = Builders<IPDetails>.Filter;
                        var childFilter2 = filterBuilder.Eq("parentId", parent_id)
                            & filterBuilder.Regex("ipNetwork", new BsonRegularExpression(new Regex(ipNetwork)))
                            & filterBuilder.Regex("ipBrowser", new BsonRegularExpression(new Regex(ipBrowser)));
                        var childItem2 = IPDetailCollection.Find(childFilter2).FirstOrDefault();
                        if (childItem2 == null)
                        {
                            AddChild(parent_id, ipAddress, ipNetwork, ipBrowser);
                        }
                    }
                }

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        /// <summary>
        /// 插入子表
        /// </summary>
        /// <returns></returns>
        public static bool AddChild(string parentId, string ipAddress, string ipNetwork, string ipBrowser)
        {
            try
            {
                var IPDetailCollection = db.GetCollection<IPDetails>(ChildCollectionName);
                IPDetails ipDetails = new IPDetails();
                ipDetails.parentId = parentId;
                ipDetails.addTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff");
                ipDetails.ipAddress = ipAddress;
                ipDetails.ipNetwork = ipNetwork;
                ipDetails.ipBrowser = ipBrowser;
                IPDetailCollection.InsertOne(ipDetails);

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        /// <summary>
        /// 插入子表
        /// </summary>
        /// <returns></returns>
        public static bool AddChild(IPDetails model)
        {
            try
            {
                var IPDetailCollection = db.GetCollection<IPDetails>(ChildCollectionName);
                IPDetails ipDetails = new IPDetails();
                ipDetails.parentId = model.parentId;
                ipDetails.addTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff");
                ipDetails.ipAddress = model.ipAddress;
                ipDetails.ipNetwork = model.ipNetwork;
                ipDetails.ipBrowser = model.ipBrowser;
                IPDetailCollection.InsertOne(ipDetails);

                return true;
            }
            catch (Exception ex)
            {
                return false;
            }

        }
    }