C# 如何为依赖项解析创建autofac工厂
我正在使用IDbcontext访问我的数据库C# 如何为依赖项解析创建autofac工厂,c#,design-patterns,ioc-container,autofac,factory,C#,Design Patterns,Ioc Container,Autofac,Factory,我正在使用IDbcontext访问我的数据库 public sealed class DbContext : IDbContext { private bool disposed; private SqlConnection connection; public DbContext(string connectionString) { connection = new SqlConnection(connectionString);
public sealed class DbContext : IDbContext
{
private bool disposed;
private SqlConnection connection;
public DbContext(string connectionString)
{
connection = new SqlConnection(connectionString);
}
public IDbConnection Connection
{
get
{
if (disposed) throw new ObjectDisposedException(GetType().Name);
return connection;
}
}
public IDbTransaction CreateOpenedTransaction()
{
if (connection.State != ConnectionState.Open)
Connection.Open();
return Connection.BeginTransaction();
}
public IEnumerable<T> ExecuteProcedure<T>(string procedure, dynamic param = null, IDbTransaction transaction = null)
{
if (connection.State == ConnectionState.Closed)
{
connection.Open();
}
return Dapper.SqlMapper.Query<T>(connection, procedure, param, transaction,
commandType: CommandType.StoredProcedure);
}
public int ExecuteProcedure(string procedure, dynamic param = null, IDbTransaction transaction = null)
{
if (connection.State == ConnectionState.Closed)
{
connection.Open();
}
return Dapper.SqlMapper.Execute(connection, procedure, param, transaction,
commandType: CommandType.StoredProcedure);
}
public void Dispose()
{
Debug.WriteLine("** Disposing DbContext");
if (disposed) return;
if (connection != null)
{
connection.Dispose();
connection = null;
}
disposed = true;
}
}
公共密封类DbContext:IDbContext
{
私人住宅;
专用SqlConnection;
公共数据库上下文(字符串连接字符串)
{
连接=新的SqlConnection(connectionString);
}
公共连接
{
得到
{
如果(disposed)抛出新的ObjectDisposedException(GetType().Name);
回路连接;
}
}
公共IDbTransaction CreateOpenedTransaction()
{
if(connection.State!=ConnectionState.Open)
Connection.Open();
返回连接。BeginTransaction();
}
公共IEnumerable ExecuteProcess(字符串过程,动态参数=null,IDbTransaction=null)
{
if(connection.State==ConnectionState.Closed)
{
connection.Open();
}
返回Dapper.SqlMapper.Query(连接、过程、参数、事务、,
commandType:commandType.StoredProcess);
}
public int ExecuteProcedure(字符串过程,动态参数=null,IDbTransaction=null)
{
if(connection.State==ConnectionState.Closed)
{
connection.Open();
}
返回Dapper.SqlMapper.Execute(连接、过程、参数、事务、,
commandType:commandType.StoredProcess);
}
公共空间处置()
{
Debug.WriteLine(“**DbContext”);
如果(处置)返回;
if(连接!=null)
{
connection.Dispose();
连接=空;
}
这是真的;
}
}
我有两个数据库“第一个”和“第二个”
在解决fist的依赖性时,我使用
builder.Register<IDbContext>(c =>
new DbContext(ConfigurationManager.ConnectionStrings["first"].ConnectionString))
.InstancePerDependency();
builder.Register(c=>
新的DbContext(ConfigurationManager.ConnectionString[“first”].ConnectionString))
.InstancePerDependence();
因此,我需要补充:
builder.Register<IDbContext>(c =>
new DbContext(ConfigurationManager.ConnectionStrings["second"].ConnectionString))
.InstancePerDependency();
builder.Register(c=>
新的DbContext(ConfigurationManager.ConnectionString[“第二个”].ConnectionString))
.InstancePerDependence();
我需要为Dbcontext创建一个工厂,并将NamedResolve用于autofac,如何才能做到这一点???公共类DbContextFactory
public class DbContextFactory
{
private ILifetimeScope m_RootLifetimeScope;
public DbContextFactory(ILifetimeScope rootLifetimeScope)
{
m_RootLifetimeScope = rootLifetimeScope;
}
public IDbContext CreateDbContext()
{
if (logic for selection first dbcontext)
{
return m_RootLifetimeScope.ResolveNamed<IDbContext>("first");
}
else if (logic for selection second dbcontext)
{
return m_RootLifetimeScope.ResolveNamed<IDbContext>("second");
}
else
{
throw new NotSupportedException();
}
}
}
//registration
builder.RegisterType<DbContextFactory>().SingleInstance();
//using
var factory = yourContainer.Resolve<DbContextFactory>();
var context = factory.CreateDbContext();
{
专用ILifetimeScope m_RootLifetimeScope;
公共DbContextFactory(ILifetimeScope rootLifetimeScope)
{
m_RootLifetimeScope=RootLifetimeScope;
}
公共IDbContext CreateDbContext()
{
if(选择第一个dbcontext的逻辑)
{
返回m_RootLifetimeScope.ResolveNamed(“第一”);
}
else if(选择第二个dbcontext的逻辑)
{
返回m_RootLifetimeScope.ResolveNamed(“第二个”);
}
其他的
{
抛出新的NotSupportedException();
}
}
}
//登记
builder.RegisterType().SingleInstance();
//使用
var factory=yourContainer.Resolve();
var context=factory.CreateDbContext();
公共类DbContextFactory
{
专用ILifetimeScope m_RootLifetimeScope;
公共DbContextFactory(ILifetimeScope rootLifetimeScope)
{
m_RootLifetimeScope=RootLifetimeScope;
}
公共IDbContext CreateDbContext()
{
if(选择第一个dbcontext的逻辑)
{
返回m_RootLifetimeScope.ResolveNamed(“第一”);
}
else if(选择第二个dbcontext的逻辑)
{
返回m_RootLifetimeScope.ResolveNamed(“第二个”);
}
其他的
{
抛出新的NotSupportedException();
}
}
}
//登记
builder.RegisterType().SingleInstance();
//使用
var factory=yourContainer.Resolve();
var context=factory.CreateDbContext();