使用代码配置 NHibernate

多数情况下 NHibernate 使用配置文件进行配置， 但是我们也可以使用代码进行配置， 步骤如下：

1、 创建一个 Configuration

using Nhibernate.cfg; var config = new Configuration() .SetProperty("connection.provider", "NHibernate.Connection.DriverConnectionProvider") .SetProperty("connection.driver_class", "NHibernate.Driver.SqlClientDriver") .SetProperty("dialect", "NHibernate.Dialect.MsSql2005Dialect") .SetProperty("proxyfactory.factory_class", "NHibernate.Bytecode.DefaultProxyFactoryFactory, NHibernate") .SetProperty("format_sql", "true") .SetProperty("show_sql", "true") .SetProperty("connection.connection_string", connectionString); 

2、 添加映射

using NHibernate.Mapping.ByCode; var mapper = new ModelMapper(); mapper.Class<Category>(cm => { cm.Schema("dbo"); cm.Table("Categories"); cm.Id(cat => cat.CategoryID, map => { map.Column("CategoryID"); map.Generator(Generators.Native); }); cm.Property(cat => cat.CategoryName, map => { map.Column("CategoryName"); map.Length(100); }); cm.Property(cat => cat.Description, map => { map.Column("Description"); map.Length(200); }); }); 

3、 添加映射至 Configuration

var mappingDocument = mapper.CompileMappingForAllExplicitlyAddedEntities(); config.AddMapping(mappingDocument);