c# 链接mongDB集群 一 了解mongdb 二 部署集群 三 C#链接mongdb 完成测试 C#链接mongdb 完成测试 此章节继续我们上一章节将的我们开始用程序去链接mondbdb,大家都知道我们链接sqlserver其实用的是微软自己写的驱动。它已经封装了一些对象,要我们去链接。但
c# 链接mongDB集群
一 了解mongdb
二 部署集群
三 C#链接mongdb 完成测试
C#链接mongdb 完成测试
此章节继续我们上一章节将的我们开始用程序去链接mondbdb,大家都知道我们链接sqlserver其实用的是微软自己写的驱动。它已经封装了一些对象,要我们去链接。但是我们链接mondbdb 同样需要一些对象,这个mongdb官网有说明,可以自己去看看或者直接下载我的这里下载 或者在第一章节有些伙伴们已经下载好了
开发驱动文件夹 在 mongo-csharp-driver-master\mongo-csharp-driver-master\src SRC下面看到驱动项目这里注意,我下载是vs2012的项目,同学们可以根据自己的需要替换net framework 版本
打开项目之后看到 如图所示
编译项目得到
MongoDB.Bson.dll
MongoDB.Driver.dll
创建项目,项目配置文件如下
<?xml version="1.0" encoding="utf-8" ?> <configuration> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /> </startup> <appSettings> <add key="LogLevel" value="trace" /> <add key="LogPath" value="E:\Tools\mongdb\FrmMongDB\FrmMongDB\logs" /> <!--MongDb配置begin--> <add key="MongReplicaSetName" value="zuomm"/><!--设置副本集名称--> <add key="MongoServerAddress" value="127.0.0.1:1111|127.0.0.1:2222|127.0.0.1:3333"/><!--mongdb集群列表--> <add key="TimeOut" value="60"/><!--mongdb集群链接超时时间--> <!--MongDb配置end--> </appSettings> </configuration>
LogLevel 为自定义 日记级别 ,这个后面看我的代码
LogPath 为日志路径
MongReplicaSetName 为副本集名称,其实就是建立集群的时候取的名字。
MongoServerAddress 为集群机器ip列表,我这里是自己的机器开了不同的端口来区别,你可以改成局域网ip
TimeOut 超时时间,默认貌似是3秒,我这里设置60秒方便调试
链接集群主要代码
/// <summary> /// 取得数据库连接字符串 /// </summary> /// <param name="connName">App.Config文件中AppSettings节中 AppSettings 对应的name</param> /// <returns>数据库连接字符串</returns> private static MongoServer GetConnStr() { List<MongoServerAddress> servers = new List<MongoServerAddress>(); string reg = @"^(?'server'\d{1,}.\d{1,}.\d{1,}.\d{1,}):(?'port'\d{1,})$"; string[] ServerList = ConfigurationManager.AppSettings["MongoServerAddress"].Trim().Split('|'); foreach (string server in ServerList) { MatchCollection mc = Regex.Matches(server, reg); if (mc != null && mc.Count > 0) servers.Add(new MongoServerAddress(mc[0].Groups["server"].ToString(), Convert.ToInt32(mc[0].Groups["port"].ToString()))); } if (servers == null || servers.Count < 1) return null; MongoClientSettings set = new MongoClientSettings(); set.Servers = servers; set.ReplicaSetName = ConfigurationManager.AppSettings["MongReplicaSetName"].Trim();//设置副本集名称 int TimeOut =ConvertUtil.ParseInt(ConfigurationManager.AppSettings["TimeOut"].Trim());//设置副本集名称 set.ConnectTimeout = new TimeSpan(0, 0, 0, TimeOut, 0);//设置超时时间为5秒 set.ReadPreference = new ReadPreference(ReadPreferenceMode.SecondaryPreferred); MongoClient client = new MongoClient(set); return client.GetServer(); } set.ReadPreference = new ReadPreference(ReadPreferenceMode.SecondaryPreferred); 这句代码可以根据自己需要修改。
其他没有什么注意的地方
数据插入mongdb代码
/// <summary> /// MongDB 批量insert语句 /// </summary> /// <typeparam name="T">对象类型</typeparam> /// <param name="_databaseName">数据库名称</param> /// <param name="_collectionName">表名称</param> /// <param name="entitys">对象</param> /// <param name="errorMsg">返回错误</param> /// <returns></returns> public static IEnumerable<SafeModeResult> Execute<T>(string _databaseName, string _collectionName, IEnumerable<T> entitys, out string errorMsg) { errorMsg = string.Empty; //取得数据库连接 IEnumerable<SafeModeResult> result = null; try { if (null == entitys) return null; //获取连接的服务器集群 _server = GetConnStr(); //获取数据库或者创建数据库(不存在的话)。 MongoDatabase database = _server.GetDatabase(_databaseName); using (_server.RequestStart(database))//开始连接数据库。 { MongoCollection<T> myCollection = database.GetCollection<T>(_collectionName); result = myCollection.InsertBatch<T>(entitys); } } catch (Exception ex) { errorMsg = ex.ToString(); } finally { } //记录日志 if (!string.IsNullOrEmpty(errorMsg)) { LogUtil.Error("CommonLib.DbAccess.MongDBAccess", "Execute", errorMsg + "\n\r\t"); } return result; }
读取mongdb数据代码
/// <summary> /// 如果不清楚具体的数量,一般不要用这个函数。 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="collectionName"></param> /// <returns></returns> public static List<T> GetAll<T>(string _databaseName, string collectionName,out string errorMsg) { errorMsg = string.Empty; List<T> result = new List<T>(); try { //获取连接的服务器集群 _server = GetConnStr(); //获取数据库或者创建数据库(不存在的话)。 MongoDatabase database = _server.GetDatabase(_databaseName); using (_server.RequestStart(database))//开始连接数据库。 { MongoCollection<T> myCollection = database.GetCollection<T>(collectionName); result.AddRange(myCollection.FindAll()); } } catch (Exception ex ) { errorMsg = ex.ToString(); } //记录日志 if (!string.IsNullOrEmpty(errorMsg)) { LogUtil.Error("CommonLib.DbAccess.MongDBAccess", "GetAll", errorMsg + "\n\r\t"); } return result; }
以上是插入和读取代码。
后面运行效果如下
我这里插入了10w条数据 人然后读取10w条数据。效率比sqlserver是快很多。

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