asp.net MVC2 初探十一

本节介绍如何实现将controller加载进spring容器。首先我们看看配置文件，我就以我做的例子来进行说明先看webConfig,在configuration节点下配置以下内容

<configSections>
        <sectionGroup name="spring">
            <section name="context" type="Spring.Context.Support.WebContextHandler, Spring.Web"/>
            <section name="objects" type="Spring.Context.Support.DefaultSectionHandler, Spring.Core"/>
        </sectionGroup>
        <section name="SpringOverrideProperty" type="System.Configuration.NameValueSectionHandler"/>
        <section name="nhibernate" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    </configSections>
    <spring>
        <context>
            <resource uri="config://spring/objects"/>
            <resource uri="assembly://SpringDao/SpringDao/spring_hibernate_dao.xml"/>
            <resource uri="assembly://SpringDao/SpringDao/Controller.xml"></resource>
        </context>
        <objects xmlns="http://www.springframework.net"/>
    </spring>

在system.web节点下配置以下内容

<httpModules>
            <add name="Spring" type="Spring.Context.Support.WebSupportModule, Spring.Web"/>
        </httpModules>
        <httpHandlers>
            <add verb="*" path="*.aspx" type="Spring.Web.Support.PageHandlerFactory, Spring.Web"/>
        </httpHandlers>

ok,WebConfig配置完成。再看我写的两个xml，第一个Controller.xml

<?xml version="1.0" encoding="utf-8"?>
<objects xmlns="http://www.springframework.net"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">
    <object id="ssCode" type="Model.SS_CODE,Model">
        <property name="C_DATA" value="2"></property>
    </object>
    <object id="CodeController" type="Controllers.CodeController,NormalUniversity" singleton="false"    autowire="byName" >
        <property    name="ssCode" ref="ssCode"></property>
    </object>
</objects>

这个文件配置的是Spring要加载进容器的Controller。以及controller中的类（Controllers.CodeController,NormalUniversity,其中Controllers.CodeController是命名空间.类名,NormalUniversity是程序集名称），以及类中的属性。下面是spring_hibernate_dao.xml

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://www.springframework.net http://www.springframework.net/xsd/spring-objects.xsd">

    <object id="DbProvider" type="SpringDao.SQLProvider, SpringDao">
        <property name="ConnectionString" value="server=.\sql2k5;uid=sa;pwd=sa123;database=test;" />
    </object>

    <object id="SessionFactory" type="Spring.Data.NHibernate.LocalSessionFactoryObject, Spring.Data.NHibernate12">
        <property name="DbProvider" ref="DbProvider" />
        <property name="MappingAssemblies">
            <list>
                <value>Model</value>
            </list>
        </property>
        <property name="HibernateProperties">
            <dictionary>
                <entry key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider" />
                <entry key="hibernate.dialect" value="NHibernate.Dialect.MsSql2005Dialect" />
                <entry key="hibernate.connection.driver_class" value="NHibernate.Driver.SqlClientDriver" />
                <entry key="show_sql" value="true" />
            </dictionary>
        </property>
    </object>

    <object id="HibernateTransactionManager" type="Spring.Data.NHibernate.HibernateTransactionManager, Spring.Data.NHibernate12">
        <property name="DbProvider" ref="DbProvider" />
        <property name="sessionFactory" ref="sessionFactory" />
    </object>

    <object id="TransactionInterceptor" type="Spring.Transaction.Interceptor.TransactionInterceptor, Spring.Data">
        <property name="TransactionManager" ref="HibernateTransactionManager" />
        <property name="TransactionAttributeSource">
            <object type="Spring.Transaction.Interceptor.AttributesTransactionAttributeSource, Spring.Data" />
        </property>
    </object>
    <object id="DaoHelper" type="Dao.SS_CodeDao,Dao">
        <property name="sessionFactory" ref="sessionFactory" />
    </object>

</objects>

配置了Spring的工厂，拦截器，事务。以及我写的一个Dao类。要实现controller的加载，必须写一个自定义的ControllerFactory实现IControllerFactory接口。代码如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spring.Context;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web;
namespace SpringDao
{
        public class ControllerFactory : IControllerFactory
        {
                private static DefaultControllerFactory defalutf = null;

                public IController CreateController(RequestContext requestContext, string controllerName)
                {
                        string controller = controllerName + "Controller";
                    
                        IApplicationContext ctx = Container.GetContext();
                        if (ctx.ContainsObject(controller))
                        {
                                object controllerf = ctx.GetObject(controller);
                                return (IController)controllerf;
                        }
                        else
                        {
                                if (defalutf == null)
                                {
                                        defalutf = new DefaultControllerFactory();
                                }

                                return defalutf.CreateController(requestContext, controllerName);
                        }
                }

                public void ReleaseController(IController controller)
                {
                        IApplicationContext ctx = Container.GetContext();

                        if (!ctx.ContainsObject(controller.GetType().Name))
                        {
                                if (defalutf == null)
                                {
                                        defalutf = new DefaultControllerFactory();
                                }

                                defalutf.ReleaseController(controller);
                        }
                }

        }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spring.Context;
using Spring.Context.Support;
using System.Collections;
namespace SpringDao
{
        public class Container
        {
                /// <summary>
                /// 获取应用程序上下文.
                /// </summary>
                /// <returns><see cref="IApplicationContext"/>应用程序上下文.</returns>
                public static IApplicationContext GetContext()
                {
                        if (FApplicationContext == null)
                        {
                                FApplicationContext = ContextRegistry.GetContext();
                        }
                        return FApplicationContext;
                }

                /// <summary>
                /// 获取应用程序上下文.
                /// </summary>
                /// <param name="name"><see cref="IApplicationContext"/>应用程序上下文名称.</param>
                /// <returns><see cref="IApplicationContext"/>应用程序上下文.</returns>
                public static IApplicationContext GetContext(string name)
                {
                        return ContextRegistry.GetContext(name);
                }

                /// <summary>
                /// 获取对象.
                /// </summary>
                /// <typeparam name="T">对象的类型.</typeparam>
                /// <param name="id">标识.</param>
                /// <returns></returns>
                public static T GetObject<T>(string id)
                {
                        return (T)GetContext().GetObject(id);
                }

                /// <summary>
                /// 获取对象类表.
                /// </summary>
                /// <typeparam name="T">对象的类型.</typeparam>
                /// <returns></returns>
                public static IList<T> GetObjects<T>()
                {
                        IEnumerable items = GetContext().GetObjectsOfType(typeof(T));
                        IList<T> objects = new List<T>();
                        foreach (DictionaryEntry item in items)
                        {
                                objects.Add((T)item.Value);
                        }
                        return objects;
                }

                [ThreadStatic]
                private static IApplicationContext FApplicationContext;

        }
}

这些代码是我从网上直接copy的，直接拿来用。完了之后我们要把controller的工厂重新指定到我们自定义的工厂。

在Global.asax的Application_Start()方法中，加入以下代码

ControllerBuilder.Current.SetControllerFactory(typeof(SpringDao.ControllerFactory));

然后再看看我们的controller

using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Model;
using NHibernate.Expression;
namespace Controllers
{
        public class CodeController : BaseController<SS_CODE>
        {
                private SS_CODE ssCode { set; get; }

                public ActionResult Index()
                {
                        ssCode.C_DATA = "aaaa";
                        return base.Index1("~/Views/System/Code/Index.aspx");
                }
        }
}

在这里我们不用实例化SS_CODE 就可以直接使用其对象。最后讲一下Log4Net。用于在客户端写入日志，配置如下

<?xml version="1.0" encoding="utf-8" ?>
<log4net>
    <logger name="WebLogger">
        <level Value="DEBUG"></level>
        <appender-ref ref="LogFileAppender" />
        <appender-ref ref="RollingLogFileAppender"></appender-ref>
    </logger>
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
        <!--日志文件名开头-->
        <file value="App_Data\\Log.txt" />
        <!--是否追加到文件-->
        <appendToFile value="true" />
        <!--混合使用日期和文件大小变换日志文件名-->
        <rollingStyle value="Composite" />
        <!--日期的格式-->
        <datePattern value="yyyyMMdd" />
        <!--最大变换数量-->
        <maxSizeRollBackups value="10" />
        <!--最大文件大小-->
        <maximumFileSize value="1MB" />
        <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
        </layout>
    </appender>
</log4net>

然后新建一个txt如下

打开Assembly,加入

[assembly: log4net.Config.XmlConfigurator(ConfigFile = @"App_Data\Log4Net.Config.xml", Watch = true)]

在web.config configSections加入以下下配置

<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />

controller中的代码

ILog lg = log4net.LogManager.GetLogger("WebLogger");
                        {
                                if (lg.IsErrorEnabled)
                                {
                                        lg.Error(this.GetType().ToString()+"xxxx李磊");
                                        
                                }
                        }

我们发现不能写入汉字，晕啊

怎么办呢？找了好久，我才找到这个办法。首先我们把Log4Net.dll给反射出来

反射到F盘下，我们看看反射的程序集

我们展开log4net\Util，打开Transform.cs,注释掉private static Regex INVALIDCHARS哪一行，重新编译生成dll，就可以写入汉字了。

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