application-context-repository.xml（配置文件）
<?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:mongo="http://www.springframework.org/schema/data/mongo"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
  xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo.xsd
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/task 
http://www.springframework.org/schema/task/spring-task-3.0.xsd
">
    
    <!-- 向 Spring 容器注册AutowiredAnnotationBeanPostProcessor、
    CommonAnnotationBeanPostProcessor、PersistenceAnnotationBeanPostProcessor 
    以及 RequiredAnnotationBeanPostProcessor 这 4 个BeanPostProcessor。
    注册这4个 BeanPostProcessor的作用，就是为了能够识别相应的注解 -->
    <context:annotation-config /> 
    
    <!-- Spring定时器注解开关-->  
    <task:annotation-driven />
    
    <!-- 使用注解一般都会配置扫描包路径选项 -->
    <context:component-scan base-package="com.studyspring.mongodb" />
  <!-- 读取mongodb.properties文件 -->
    <context:property-placeholder location="classpath:mongodb.properties"/>
    
    <!-- 配置mongo数据库 --> 
<mongo:mongo host="${mongo.host}" port="${mongo.port}">
</mongo:mongo> 

<!-- 通过工厂Bean创建mongo连接实例-->
<mongo:db-factory id="mongoDbFactory" dbname="${mongo.database}" username="${mongo.user}" password="${mongo.password}"/>

<!-- 映射转换器，扫描back-package目录下的文件，根据注释，把它们作为mongodb的一个collection的映射 -->
<mongo:mapping-converter base-package="com.studyspring.mongodb.converter" id="customCVT">
<mongo:custom-converters base-package="com.studyspring.mongodb.converter" />
</mongo:mapping-converter>

<!-- mongodb的主要操作对象，所有对mongodb的增删改查的操作都是通过它完成 -->  
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
<constructor-arg ref="customCVT"/>
<property name="writeConcern" value="SAFE" />
</bean>

<!--  mongodb bean的仓库目录，会自动扫描扩展了MongoRepository接口的接口进行注入  -->
<mongo:repositories base-package="com.studyspring.mongodb.repositories"/> 
 
<!-- 日志事件监听 -->
<bean class="org.springframework.data.mongodb.core.mapping.event.LoggingEventListener"/>
</beans>