Spring.Net + NHibernate 简单示例

环境：
1，VS2010
2，MySql 5.5.15

主要用到的dll：
Common.Logging.dll
Common.Logging.Log4Net.dll
log4net.dll
Iesi.Collections.dll
NHibernate.dll
Spring.Core.dll
Spring.Data.dll
Spring.Data.NHibernate32.dll

以上文件皆可从Spring.NET 下载包中获得。

实验目的：查找出一条记录显示其某个属性值。

本人喜欢Java的开发习惯，因此文件都挤在一个工程里：

View Code

<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="spring">
<section name="context" type="Spring.Context.Support.ContextHandler, Spring.Core"/>
<section name="objects" type="Spring.Context.Support.DefaultSectionHandler, Spring.Core"/>
<section name="parsers" type="Spring.Context.Support.NamespaceParsersSectionHandler, Spring.Core"/>
</sectionGroup>
<sectionGroup name="common">
<section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging"/>
</sectionGroup>
<section name="databaseSettings" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
</configSections>

<spring>
<context>
<resource uri="assembly://SpringNHibernateTest/SpringNHibernateTest.Conf/applicationContext_hibernate.xml"/>
<resource uri="assembly://SpringNHibernateTest/SpringNHibernateTest.Conf/applicationContext_PM.xml"/>
<resource uri="config://spring/objects"/>
</context>
<objects xmlns="http://www.springframework.net">
</objects>
<parsers>
<parser type="Spring.Data.Config.DatabaseNamespaceParser, Spring.Data"/>
<parser type="Spring.Transaction.Config.TxNamespaceParser, Spring.Data"/>
</parsers>
</spring>

<!-- These properties are referenced in applicationContext_hibernate.xml -->
<databaseSettings>
<add key="db.datasource" value="192.168.1.186"/>
<add key="db.user" value="root"/>
<add key="db.password" value="root"/>
<add key="db.database" value="hellodb"/>
</databaseSettings>

<common>
<logging>
<factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net">
<!-- choices are INLINE, FILE, FILE-WATCH, EXTERNAL-->
<!-- otherwise BasicConfigurer.Configure is used   -->
<!-- log4net configuration file is specified with key configFile-->
<arg key="configType" value="INLINE"/>
<arg key="configFile" value="filename"/>
</factoryAdapter>
</logging>
</common>

<log4net>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%-5level %logger - %message%newline"/>
</layout>
</appender>

<!-- Set default logging level to DEBUG -->
<root>
<level value="DEBUG"/>
<appender-ref ref="ConsoleAppender"/>
</root>

<!-- Set logging for Spring.  Logger names in Spring correspond to the namespace -->
<logger name="Spring">
<level value="INFO"/>
</logger>

<logger name="Spring.Data">
<level value="DEBUG"/>
</logger>

<logger name="NHibernate">
<level value="INFO"/>
</logger>

</log4net>

<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
</configuration>

需要注意的地方：
<resource uri="assembly://SpringNHibernateTest/SpringNHibernateTest.Conf/applicationContext_hibernate.xml"/>
<resource uri="assembly://SpringNHibernateTest/SpringNHibernateTest.Conf/applicationContext_PM.xml"/>

这2句的意思就是去寻找Spring的配置文件。注意这2个文件的生成操作均为：嵌入的资源。

<databaseSettings>
<add key="db.datasource" value="192.168.1.186"/>
<add key="db.user" value="root"/>
<add key="db.password" value="root"/>
<add key="db.database" value="hellodb"/>
</databaseSettings>

为数据库的所用，其实就是设置一些Key-Value对，其使用在applicationContext_hibernate.xml中，稍后解释

然后下面的语句就是配置日志的，这里稍微注意下，用Spring带的一套吧。（本人很悲情的使用了以前的log4Net 配合Spring中的common.logging ，结果各种悲剧报错）

解下来是hibernate的配置：applicationContext_hibernate.xml：

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net"
xmlns:db="http://www.springframework.net/database"
xmlns:tx="http://www.springframework.net/tx">

<!-- Referenced by main application context configuration file -->
<description>
The Northwind object definitions for the Data Access Objects.
</description>

<!-- Property placeholder configurer for database settings -->
<object type="Spring.Objects.Factory.Config.PropertyPlaceholderConfigurer, Spring.Core">
<property name="ConfigSections" value="databaseSettings"/>
</object>

<!-- Database Configuration -->
<db:provider id="DbProvider"
provider="MySql"
connectionString="Database=${db.database};Data Source=${db.datasource};User Id=${db.user};Password=${db.password}"/>

<!-- NHibernate Configuration -->
<object id="NHibernateSessionFactory" type="SpringNHibernateTest.Common.NHibernate.CustomLocalSessionFactoryObject, SpringNHibernateTest">
<property name="DbProvider" ref="DbProvider"/>
<property name="MappingAssemblies">
<list>
<value>SpringNHibernateTest</value>
</list>
</property>
<property name="HibernateProperties">
<dictionary>
<entry key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider"/>
<entry key="dialect" value="NHibernate.Dialect.MySQLDialect"/>
<entry key="connection.driver_class" value="NHibernate.Driver.MySqlDataDriver"/>
<entry key="use_proxy_validator" value="false" />
<entry key="proxyfactory.factory_class" value="NHibernate.Bytecode.DefaultProxyFactoryFactory , NHibernate"/>
</dictionary>
</property>

<!-- provides integation with Spring's declarative transaction management features -->
<property name="ExposeTransactionAwareSessionFactory" value="true" />

</object>

<!-- Transaction Management Strategy - local database transactions -->
<object id="transactionManager"
type="Spring.Data.NHibernate.HibernateTransactionManager, Spring.Data.NHibernate32">

<property name="DbProvider" ref="DbProvider"/>
<property name="SessionFactory" ref="NHibernateSessionFactory"/>

</object>

<object id="TransactionInterceptor" type="Spring.Transaction.Interceptor.TransactionInterceptor, Spring.Data">
<property name="TransactionManager" ref="transactionManager"/>
<property name="TransactionAttributeSource">
<object type="Spring.Transaction.Interceptor.AttributesTransactionAttributeSource, Spring.Data"/>
</property>
</object>

<!-- Exception translation object post processor -->
<object type="Spring.Dao.Attributes.PersistenceExceptionTranslationPostProcessor, Spring.Data"/>

<tx:attribute-driven />
</objects>

首先第一句：

<object type="Spring.Objects.Factory.Config.PropertyPlaceholderConfigurer, Spring.Core">
<property name="ConfigSections" value="databaseSettings"/>
</object>

这个就是上面讲的读取那些 Key-Value，使用的时候如下所示：用${} 来读取

<db:provider id="DbProvider"
provider="MySql"
connectionString="Database=${db.database};Data Source=${db.datasource};User Id=${db.user};Password=${db.password}"/>

需要注意的是provider 不要乱写！！

然后：

<property name="MappingAssemblies">
<list>
<value>SpringNHibernateTest</value>
</list>
</property>

Value值就是Mapping文件所在的项目名称。

最后几句就是开启Spring的事物处理。

需要注意的是那个很小的几个字母： <tx:attribute-driven />。本人在此悲剧了半天。。一定要加上！

最后PM.XML 就是我们平时频繁修改的文件了：

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net"
xmlns:db="http://www.springframework.net/database">

<!-- Referenced by main application context configuration file -->
<description>
PM
</description>

<!-- Data Access Objects -->
<object id="ProductDAO" type="SpringNHibernateTest.PM.DAO.ProductDAO, SpringNHibernateTest">
<property name="SessionFactory" ref="NHibernateSessionFactory"/>
</object>
<object id="ProductService" type="SpringNHibernateTest.PM.Service.ProductService, SpringNHibernateTest">
<property name="ProductDAO" ref="ProductDAO"/>
</object>
</objects>

这个文件的格式都很简单，照着写就行了。

另外需要注意DAO的书写：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using SpringNHibernateTest.PM.DAO.iface;
using SpringNHibernateTest.Common.DAO;
using SpringNHibernateTest.PM.Entity;

using Spring.Stereotype;
using Spring.Transaction.Interceptor;
namespace SpringNHibernateTest.PM.DAO
{
[Repository]
public class ProductDAO : HibernateDao,IProductDAO
{
[Transaction(ReadOnly = true)]
public Product Get(int productId)
{
return CurrentSession.Get<Product>(productId);
}

[Transaction(ReadOnly = true)]
public IList<Product> GetAll()
{
return GetAll<Product>();
}

[Transaction]
public int Save(Product product)
{
return (int)CurrentSession.Save(product);
}

[Transaction]
public void Update(Product product)
{
CurrentSession.SaveOrUpdate(product);
}

[Transaction]
public void Delete(Product product)
{
CurrentSession.Delete(product);
}
}
}

注意那些标签，用于事务处理的。

然后测试代码：

IApplicationContext ctx = ContextRegistry.GetContext();

ProductService dao = ctx.GetObject("ProductService") as ProductService;

MessageBox.Show(dao.Get(1).PName);

还有需要注意的一点，本人在此也停顿了一会的问题：

引用Spring.Data.NHibernate.dll 没有效果，每次编译VS就默认把这个dll忽略了。导致编译不通过，遇到此种情况，请检查项目的目标框架，正确的应该是：.NET Framework 4

--不会上传附件，就不带源码了。具体请参照Spring.Net 的例子：Spring.Data.NHibernate.Northwind