Autofac配置与KeyFilter构造属性

Question

我想使用Autofac配置创建一个服务对象。

public class Service : IService 
{ 
     public Service([KeyFilter("eod")]ISimpleMongoClient eodClient, 
      [KeyFilter("live")]ISimpleMongoClient liveClient 
      ) : base(config) 
     { 
      _eodClient = eodClient; 
      _liveClient = liveClient; 
     } 
} 

public class SimpleMongoClient : ISimpleMongoClient 
{ 
    public SimpleMongoClient(string connectionString, string database) 
    { 
     IMongoClient client = new MongoClient(connectionString); 
     MongoDatabase = client.GetDatabase(database); 
    } 
} 

不知何故，使用以下配置，它无法正确解析ISimpleMongoClient参数。我还有什么遗漏？

{ 
    "components": [ 
    { 
     "type": "Service, TestProject", 
     "services": [ 
     { 
      "type": "IService, TestProject" 
     } 
     ], 
     "instanceScope": "single-instance" 
    }, 
    { 
     "type": "SimpleMongoClient, TestProject", 
     "services": [ 
     { 
      "type": "ISimpleMongoClient, TestProject", 
      "key": "eod" 
     } 
     ], 
     "parameters": { 
     "connectionString": "mongodb://localhost:27017/?readPreference=primary", 
     "database": "eod" 
     }, 
     "instanceScope": "single-instance" 
    }, 
    { 
     "type": "SimpleMongoClient, TestProject", 
     "services": [ 
     { 
      "type": "ISimpleMongoClient, TestProject", 
      "key": "live" 
     } 
     ], 
     "parameters": { 
     "connectionString": "mongodb://localhost:27017/?readPreference=primary", 
     "database": "live" 
     }, 
     "instanceScope": "single-instance" 
    } 
    ] 
} 

Answer 1

要使用KeyFilter属性，你需要注册的东西做过滤with the WithAttributeFiltering()扩展。你不能通过配置来做到这一点。