Question

我创建了一个示例c＃控制台应用程序，以连接到Docker上CentOS计算机上托管的mongodb。

用于创建容器的命令如下：

docker run -d --name mongodb-container -p 2020：27017 -v / home / mongodb_data：/ var / lib / mongodb / data -v / home / mongodb_log：/ var / log / mongodb -v / home /mongod.conf：/etc/mongod.conf -e MONGO_INITDB_ROOT_USERNAME = mongoadmin -e MONGO_INITDB_ROOT_PASSWORD =秘密mongo

系统IP为：172.17.103.158 Mongodb docker端口是：2020

现在要使用C＃代码

class users
    {
        [BsonId]
        public ObjectId _Id { get; set; }

        [BsonElement]
        public string name { get; set; }
    }

MongoContext类

public class MongoContext
    {
        IMongoClient _client;
        public readonly IMongoDatabase _database;

        public MongoContext()
        {
            MongoCredential credential = MongoCredential.CreateCredential(ConfigurationManager.AppSettings["MongoDatabaseName"], ConfigurationManager.AppSettings["MongoUsername"], ConfigurationManager.AppSettings["MongoPassword"]);

            var settings = new MongoClientSettings
            {
                Credential = credential,
                VerifySslCertificate = false,
                ConnectionMode = ConnectionMode.ReplicaSet,
                ReplicaSetName = ConfigurationManager.AppSettings["MongoDatabaseName"],
                UseSsl = false,
                Server = new MongoServerAddress(ConfigurationManager.AppSettings["MongoHost"], Convert.ToInt32(ConfigurationManager.AppSettings["MongoPort"]))
            };

            _client = new MongoClient(settings);
            _database = _client.GetDatabase(ConfigurationManager.AppSettings["MongoDatabaseName"]);
        }
    }

Web配置：

<configuration>


<appSettings>
    <add key="MongoDatabaseName" value="clientdb" />
    <add key="MongoUsername" value="mongoadmin" />
    <add key="MongoPassword" value="secret" />
    <add key="MongoPort" value="2020" />
    <add key="MongoHost" value="172.17.103.158" />
  </appSettings>

</configuration>

查看用户

static List<users> ViewUsers()
    {
        try
        {
            MongoContext db = new MongoContext();
            IMongoCollection<users> Table1 = db._database.GetCollection<users>("users");

            return Table1.AsQueryable().ToList();
        }
        catch (Exception ex) { throw ex; }
    }

错误：

{"A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }. Client view of cluster state is { ClusterId : \"1\", ConnectionMode : \"Automatic\", Type : \"Unknown\", State : \"Disconnected\", Servers : [{ ServerId: \"{ ClusterId : 1, EndPoint : \"172.17.103.158:2020\" }\", EndPoint: \"172.17.103.158:2020\", State: \"Disconnected\", Type: \"Unknown\", HeartbeatException: \"MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> MongoDB.Driver.MongoAuthenticationException: Unable to authenticate using sasl protocol mechanism SCRAM-SHA-1. ---> MongoDB.Driver.MongoCommandException: Command saslStart failed: Authentication failed..\r\n   at MongoDB.Driver.Core.WireProtocol.CommandUsingQueryMessageWireProtocol`1.ProcessReply(ConnectionId connectionId, ReplyMessage`1 reply)\r\n   at MongoDB.Driver.Core.WireProtocol.CommandUsingQueryMessageWireProtocol`1.<ExecuteAsync>d__14.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at MongoDB.Driver.Core.Authentication.SaslAuthenticator.<AuthenticateAsync>d__7.MoveNext()\r\n   --- End of inner exception stack trace ---\r\n   at MongoDB.Driver.Core.Authentication.SaslAuthenticator.<AuthenticateAsync>d__7.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at MongoDB.Driver.Core.Authentication.DefaultAuthenticator.<AuthenticateAsync>d__7.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at MongoDB.Driver.Core.Authentication.AuthenticationHelper.<AuthenticateAsync>d__1.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at MongoDB.Driver.Core.Connections.ConnectionInitializer.<InitializeConnectionAsync>d__3.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__48.MoveNext()\r\n   --- End of inner exception stack trace ---\r\n   at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__48.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)\r\n   at MongoDB.Driver.Core.Servers.ServerMonitor.<HeartbeatAsync>d__27.MoveNext()\" }] }."}

错误消息简短提示：

{"A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }. Client view of cluster state is { ClusterId : \"1\", ConnectionMode : \"Automatic\", Type : \"Unknown\", State : \"Disconnected\", Servers : [{ ServerId: \"{ ClusterId : 1, EndPoint : \"172.17.103.158:2020\" }\", EndPoint: \"172.17.103.158:2020\", State: \"Disconnected\", Type: \"Unknown\", HeartbeatException: \"MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> MongoDB.Driver.MongoAuthenticationException: Unable to authenticate using sasl protocol mechanism SCRAM-SHA-1. ---> MongoDB.Driver.MongoCommandException: Command saslStart failed: Authentication failed..

当mongo db受用户名和密码保护时，我将面临此问题。

在两种情况下，MongoDb Compass仍然能够连接到mongo db。

我的问题是：为什么在对数据库应用身份验证时c＃代码无法连接到mongodb。

解决方案： 1.使用uri连接：mongodb：// mongoadmin：secret@172.17.103.158：2020 / clientdb 2.编辑mongod.config => BindIp 127.0.0.1，172.17.103.17（我的系统IP） 3.使用SCRAM-SHA-1机制

Answer 1

关注此链接Mongo Site 并查看

数据库组件：
数据库组件是可选的，用于指示要针对哪个数据库进行身份验证。如果未提供数据库组件，则使用“ admin”数据库。

问题是您正在验证clientdb的mongoadmin用户。但是mongoadmin用户已通过admin db的身份验证。获得mongoadmin用户的身份验证，然后您就可以访问clientdb。

以下是使用URI方法的示例：

        IMongoClient _client;
        public readonly IMongoDatabase _database;

        public MongoContext_URIBased()
        {
            var mongoUrl = new MongoUrl("mongodb://mongoadmin:secret@172.17.103.158:2020/admin");
            _client = new MongoClient(mongoUrl);
            _database = _client.GetDatabase("clientdb");
        }

然后根据您的代码，下面将起作用：

您的配置文件应类似于：

<appSettings>
<add key="MongoMasterDatabaseName" value="admin" />
<add key="MongoUsername" value="mongoadmin" />
<add key="MongoPassword" value="secret" />
<add key="MongoPort" value="2020" />
<add key="MongoHost" value="172.17.103.158" />
<add key="MongoClientDatabaseName" value="clientDb" />


</appSettings>

和C＃代码：

public class MongoContext
    {
        IMongoClient _client;
        public readonly IMongoDatabase _database;

        public MongoContext()
        {
            MongoCredential credential = MongoCredential.CreateCredential(ConfigurationManager.AppSettings["MongoMasterDatabaseName"], ConfigurationManager.AppSettings["MongoUsername"], ConfigurationManager.AppSettings["MongoPassword"]);
            var settings = new MongoClientSettings
            {
                Credential = credential,
                Server = new MongoServerAddress(, Convert.ToInt32(ConfigurationManager.AppSettings["MongoPort"]))
            };
            _client = new MongoClient(settings);
            _database = _client.GetDatabase(ConfigurationManager.AppSettings["MongoClientDatabaseName"]);
        }
    }

如您所见，mongoadmin用户首先要获得对admin db的身份验证。然后您可以连接到clientdb

Answer 2

在mongod.conf中，将您的本地IP添加到bind_ip

mongod.conf文件

bind_ip = 127.0.0.1,192.168.xxx.xxxx

其中：

127.0.0.1以允许来自同一台计算机的连接
192.168.xxx.xxxx以允许从该IP连接

Check This

确保您正在使用的用户名在clientdb数据库中

要将用户添加到clientdb数据库，您可以跟随

use clientdb

db.createUser(
   {
     user: "mongoadmin",
     pwd: "secret",
     roles:
       [
         { role: "root", db: "admin" }
       ]
   }
)

无法使用mongocsharpdriver 2.7.0连接到MongoDb（使用身份验证）

2 个答案: