OSGI企业应用开发（九）整合Spring和Mybatis框架（二）

上篇文章中，我们完成了在OSGI应用中整合spring和Mybatis框架的准备工作，本节我们继续Spring和Mybatis框架的整合。

一、解决OSGI整合Spring中的Placeholder问题

使用Spring框架的朋友应该都知道，我们可以在Bean的配置文件中，使用${key}的形式访问properties文件中对应的value值，需要用到Spring中的PropertyPlaceholderConfigurer类，使用方式如下，首先需要配置placeholder，例如：

<bean id="placeholder"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">   <property name="location">     <value>conf/jdbc.properties</value>   </property></bean>
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conf/jdbc.properties文件内容如下：

jdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost/mysqldb?useUnicode=true&characterEncoding=UTF-8&jdbc.username=rootjdbc.password=123456
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然后我们定义Bean的时候，就可以使用${key}的方式访问jdbc.properties文件中的内容，例如：

<bean id="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close">  <property name="driverClassName"value="${jdbc.driverClassName}" />  <property name="url" value="${jdbc.url}" />  <property name="username" value="${jdbc.username}"/>  <property name="password"value="${jdbc.password}" /></bean>
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但是在OSGI应用中，并没有全局的Classpath的概念，其中一个Bundle的属性文件在其他Bundle中无法访问，而且不同Bundle中的ApplictionContext也是独立的，PropertyPlaceholderConfigurer实例在不同的Bundle中不是共享的，所以Spring框架中的Placeholder配置也就存在一定的问题。

Gemini Blueprint为OSGI应用中使用Placeholder提供了一种解决方案，但是基于Key-Value的配置信息需要定义在XML文件中，例如：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xmlns:osgix="http://www.springframework.org/schema/osgi-compendium"   xmlns:ctx="http://www.springframework.org/schema/context"   xmlns:osgi="http://www.eclipse.org/gemini/blueprint/schema/blueprint"   xsi:schemaLocation="    http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd    http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd    http://www.springframework.org/schema/osgi-compendium       http://www.springframework.org/schema/osgi-compendium/spring-osgi-compendium.xsd      http://www.eclipse.org/gemini/blueprint/schema/blueprint        http://www.eclipse.org/gemini/blueprint/schema/blueprint/gemini-blueprint.xsd">   <osgix:cm-properties id="dbInfo" persistent-id="com.csdn.osgi.common">      <prop key="driver">com.mysql.jdbc.Driver</prop>      <prop key="url">jdbc:mysql://127.0.0.1:3306/osgi</prop>      <prop key="username">root</prop>      <prop key="password"></prop>   </osgix:cm-properties>   <ctx:property-placeholder properties-ref="dbInfo" /></beans>
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接下来在Bean的定义中，就可以一${Key}的形式访问Value值了，例如：

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">                 <property name="driverClassName" value="${driver}" />          <property name="url" value="${url}" />          <property name="username" value="${username}" />             <property name="password" value="${password}" />            </bean>
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二、Spring与Mybatis框架整合

1、首先新建一个Plug-in Project,名称为com.csdn.osgi.database，该Bundle用于操作数据库。

2、接着在com.csdn.osgi.database工程中新建META-INF/spring目录，然后在该目录下新建database.xml文件，用于配置数据源及Mybatis-Spring插件提供的SqlSessionFactoryBean和SqlSessionTemplate的实例，以及事务管理器等。
database.xml文件内容如下：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">                 <property name="driverClassName" value="${driver}" />          <property name="url" value="${url}" />          <property name="username" value="${username}" />             <property name="password" value="${password}" />            </bean>       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">       <property name="dataSource" ref="dataSource" />       <property name="configLocation" value="classpath:sqlMap.xml"/>    </bean>    <!-- 创建SqlSessionTemplate -->    <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">       <constructor-arg index="0" ref="sqlSessionFactory" />     </bean>    <!-- 事务管理 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">          <property name="dataSource" ref="dataSource" />      </bean>     <!--事务模板 -->      <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">          <property name="transactionManager">              <ref local="transactionManager" />          </property>          <!--ISOLATION_DEFAULT 表示由使用的数据库决定  -->          <property name="isolationLevelName" value="ISOLATION_DEFAULT"/>          <property name="propagationBehaviorName" value="PROPAGATION_REQUIRED"/>    </bean>  </beans>
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3、接下来在META-INF/spring目录下，新建一个dmconfig.xml文件，用于配置placeholder及注册sqlSessionTemplate这个Bean，这样在其他Bundle中就可以通过引用我们注册的sqlSessionTemplate来操作数据库了。
dmconfig.xml文件内容如下：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xmlns:osgix="http://www.springframework.org/schema/osgi-compendium"   xmlns:ctx="http://www.springframework.org/schema/context"   xmlns:osgi="http://www.eclipse.org/gemini/blueprint/schema/blueprint"   xsi:schemaLocation="    http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd    http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd    http://www.springframework.org/schema/osgi-compendium       http://www.springframework.org/schema/osgi-compendium/spring-osgi-compendium.xsd      http://www.eclipse.org/gemini/blueprint/schema/blueprint        http://www.eclipse.org/gemini/blueprint/schema/blueprint/gemini-blueprint.xsd">   <osgix:cm-properties id="dbInfo" persistent-id="com.csdn.osgi.common">      <prop key="driver">com.mysql.jdbc.Driver</prop>      <prop key="url">jdbc:mysql://127.0.0.1:3306/osgi</prop>      <prop key="username">root</prop>      <prop key="password"></prop>   </osgix:cm-properties>   <ctx:property-placeholder properties-ref="dbInfo" />   <osgi:service id="sqlMapService" ref="sqlSessionTemplate" interface="org.apache.ibatis.session.SqlSession" /></beans>
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4、接下来就是Mybatis主配置文件和SQL的配置了，在sqlSessionFactory这个Bean的配置中，我们指定了Mybatis配置文件为sqlMap.xml，如下：

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">       <property name="dataSource" ref="dataSource" />       <property name="configLocation" value="classpath:sqlMap.xml"/>    </bean>
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所以需要在com.csdn.osgi.database工程的src目录下新建一个sqlMap.xml文件，内容如下：

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE configuration    PUBLIC "-//mybatis.org//DTD Config 3.0//EN"    "http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration>    <mappers>        <mapper resource="user.xml"/>    </mappers></configuration>
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上面配置中，我们指定了SQL配置文件为user.xml，接着在com.csdn.osgi.database工程的src目录下新建user.xml文件，内容如下：

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="user">    <insert id="saveUser" parameterType="java.util.HashMap">        insert into user(username,password) values(#{UserName},#{Password});    </insert>    <select id="getPasswordByName" parameterType="java.lang.String" resultType="java.lang.String">        select password from user where username = #{UserName}    </select></mapper>
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5、整个工程目录及文件结构如下图所示：

6、然后还需要对com.csdn.osgi.database工程的MANIFEST.MF文件新建修改，添加如下Bundle的依赖：

Manifest-Version: 1.0Bundle-ManifestVersion: 2Bundle-Name: DatabaseBundle-SymbolicName: com.csdn.osgi.databaseBundle-Version: 1.0.0.qualifierBundle-Vendor: CSDNBundle-RequiredExecutionEnvironment: JavaSE-1.8Require-Bundle: org.springframework.jdbc;bundle-version="3.0.0", org.mybatis.mybatis;bundle-version="3.1.1", com.springsource.org.apache.commons.dbcp;bundle-version="1.2.2", com.springsource.org.apache.commons.pool;bundle-version="1.3.0", org.springframework.transaction;bundle-version="3.0.0", com.springsource.com.mysql.jdbc;bundle-version="5.1.6", org.mybatis.mybatis-spring;bundle-version="1.2.3"
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上面MANIFEST.MF文件中，Require-Bundle元数据头为新增。

7、最后一步，启动OSGI容器。需要单击Run=>Debug Configurations…菜单，如下图所示：

单击Validate Bundles按钮，查看是否存在Bundle依赖问题，笔者单击后如下图所示：

说明存在依赖问题，解决方法非常简单，单击面板上的Add Required Bundles按钮即可。

启动后输出控制台输出日志内容如下：

一月 07, 2017 3:40:33 下午 org.eclipse.gemini.blueprint.extender.internal.boot.ChainActivator <init>信息: Blueprint API detected; enabling Blueprint Container functionality一月 07, 2017 3:40:33 下午 org.eclipse.gemini.blueprint.extender.internal.activator.LoggingActivator start信息: Starting [org.eclipse.gemini.blueprint.extender] bundle v.[2.0.0.M02]osgi> 一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.support.ExtenderConfiguration start信息: No custom extender configuration detected; using defaults...一月 07, 2017 3:40:34 下午 org.springframework.scheduling.timer.TimerTaskExecutor afterPropertiesSet信息: Initializing Timerhello world!一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.support.DefaultOsgiApplicationContextCreator createApplicationContext信息: Discovered configurations {osgibundle:/META-INF/spring/*.xml} in bundle [Common (com.csdn.osgi.common)]Hello World!!一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.support.DefaultOsgiApplicationContextCreator createApplicationContext信息: Discovered configurations {config/*.xml} in bundle [Helloworld (com.csdn.osgi.helloworld)]一月 07, 2017 3:40:34 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.common, config=osgibundle:/META-INF/spring/*.xml): startup date [Sat Jan 07 15:40:34 CST 2017]; root of context hierarchy一月 07, 2017 3:40:34 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=config/*.xml): startup date [Sat Jan 07 15:40:34 CST 2017]; root of context hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext unpublishContextAsOsgiService信息: Application Context service already unpublished一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.blueprint.activator.support.BlueprintContainerCreator createApplicationContext信息: Discovered configurations {bundleentry://43.fwk2082351774/OSGI-INF/blueprint/beans.xml} in bundle [Helloworld (com.csdn.osgi.helloworld)]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext unpublishContextAsOsgiService信息: Application Context service already unpublished一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.support.DefaultOsgiApplicationContextCreator createApplicationContext信息: Discovered configurations {osgibundle:/META-INF/spring/*.xml} in bundle [Database (com.csdn.osgi.database)]一月 07, 2017 3:40:34 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.database, config=osgibundle:/META-INF/spring/*.xml): startup date [Sat Jan 07 15:40:34 CST 2017]; root of context hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext unpublishContextAsOsgiService信息: Application Context service already unpublished一月 07, 2017 3:40:34 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=bundleentry://43.fwk2082351774/OSGI-INF/blueprint/beans.xml): startup date [Sat Jan 07 15:40:34 CST 2017]; root of context hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext unpublishContextAsOsgiService信息: Application Context service already unpublished一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from OSGi resource[bundleentry://43.fwk2082351774/OSGI-INF/blueprint/beans.xml|bnd.id=43|bnd.sym=com.csdn.osgi.helloworld]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://37.fwk2082351774/META-INF/spring/beans.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://46.fwk2082351774/META-INF/spring/database.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://43.fwk2082351774/config/beans.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://43.fwk2082351774/config/company.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://46.fwk2082351774/META-INF/spring/dmconfig.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://37.fwk2082351774/META-INF/spring/dmconfig.xml]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor stageOne信息: No outstanding OSGi service dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=bundleentry://43.fwk2082351774/OSGI-INF/blueprint/beans.xml)一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://43.fwk2082351774/config/dmconfig.xml]================Hello World================一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from URL [bundleentry://37.fwk2082351774/META-INF/spring/employee.xml]一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@215dd7af: defining beans [helloWorld,blueprintBundle,blueprintBundleContext,blueprintContainer,blueprintConverter]; root of factory hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor stageOne信息: No outstanding OSGi service dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.common, config=osgibundle:/META-INF/spring/*.xml)一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.blueprint.container.support.BlueprintContainerServicePublisher registerService信息: Publishing BlueprintContainer as OSGi service with properties {Bundle-SymbolicName=com.csdn.osgi.helloworld, Bundle-Version=1.0.0.qualifier, osgi.blueprint.container.version=1.0.0.qualifier, osgi.blueprint.container.symbolicname=com.csdn.osgi.helloworld}一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@68bf15f1: defining beans [object,length,buffer,current-time,list,employee,programmer]; root of factory hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext publishContextAsOsgiServiceIfNecessary信息: Publishing application context as OSGi service with properties {org.eclipse.gemini.blueprint.context.service.name=com.csdn.osgi.helloworld, org.springframework.context.service.name=com.csdn.osgi.helloworld, Bundle-SymbolicName=com.csdn.osgi.helloworld, Bundle-Version=1.0.0.qualifier}一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyServiceManager doFindDependencies信息: Adding OSGi service dependency for importer [&employee] matching OSGi filter [(objectClass=com.csdn.osgi.domain.Employee)]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.support.DefaultOsgiBundleApplicationContextListener onOsgiApplicationEvent信息: Application context successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=bundleentry://43.fwk2082351774/OSGI-INF/blueprint/beans.xml))一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyServiceManager findServiceDependencies信息: OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=config/*.xml) is waiting for unsatisfied dependencies [[&employee]]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor stageOne信息: No outstanding OSGi service dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.database, config=osgibundle:/META-INF/spring/*.xml)一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@30d1126b: defining beans [dataSource,sqlSessionFactory,sqlSessionTemplate,transactionManager,transactionTemplate,dbInfo,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,sqlMapService]; root of factory hierarchy一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.service.exporter.support.OsgiServiceFactoryBean registerService信息: Publishing service under classes [{com.csdn.osgi.domain.Employee}]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyServiceManager$DependencyServiceListener serviceChanged信息: No unsatisfied OSGi service dependencies; completing initialization for OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=config/*.xml)一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext publishContextAsOsgiServiceIfNecessary信息: Publishing application context as OSGi service with properties {org.eclipse.gemini.blueprint.context.service.name=com.csdn.osgi.common, org.springframework.context.service.name=com.csdn.osgi.common, Bundle-SymbolicName=com.csdn.osgi.common, Bundle-Version=1.0.0.qualifier}一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.support.DefaultOsgiBundleApplicationContextListener onOsgiApplicationEvent信息: Application context successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.common, config=osgibundle:/META-INF/spring/*.xml))SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".SLF4J: Defaulting to no-operation (NOP) logger implementationSLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.一月 07, 2017 3:40:34 下午 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@4f805c92: defining beans [helloWorld1,helloWorld2,company,employee]; root of factory hierarchy================Hello World================================Hello World=========================Company=========一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext publishContextAsOsgiServiceIfNecessary信息: Publishing application context as OSGi service with properties {org.eclipse.gemini.blueprint.context.service.name=com.csdn.osgi.helloworld, org.springframework.context.service.name=com.csdn.osgi.helloworld, Bundle-SymbolicName=com.csdn.osgi.helloworld, Bundle-Version=1.0.0.qualifier}一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.support.DefaultOsgiBundleApplicationContextListener onOsgiApplicationEvent信息: Application context successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.helloworld, config=config/*.xml))一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.service.exporter.support.OsgiServiceFactoryBean registerService信息: Publishing service under classes [{org.apache.ibatis.session.SqlSession}]一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.context.support.AbstractOsgiBundleApplicationContext publishContextAsOsgiServiceIfNecessary信息: Publishing application context as OSGi service with properties {org.eclipse.gemini.blueprint.context.service.name=com.csdn.osgi.database, org.springframework.context.service.name=com.csdn.osgi.database, Bundle-SymbolicName=com.csdn.osgi.database, Bundle-Version=1.0.0.qualifier}一月 07, 2017 3:40:34 下午 org.eclipse.gemini.blueprint.extender.internal.support.DefaultOsgiBundleApplicationContextListener onOsgiApplicationEvent信息: Application context successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.csdn.osgi.database, config=osgibundle:/META-INF/spring/*.xml))
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从日志文件中可以分析出，Mybatis相关的Bean已经实例化成功，本节内容先介绍这么多，下篇文件中我们在其他Bundle中通过Mybatis-Spring插件提供的模版类操作数据库。

注意：上篇文章提到使用Mybatis-Spring插件版本为1.2.0，与Spring 3.0整合存在一定的问题，本文中笔者將Mybatis-Spring插件版本改为1.2.3。