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：

重点的为配置文件 APP.Config：

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