Mongodb与spring集成（1）------配置

这里我们用到的是spring-data中一个集成mongodb的项目，首先在maven中添加对它的依赖，这里我用的是1.0.0.M5版本

		<!-- mongodb spring -->
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-mongodb</artifactId>
			<version>1.0.0.M5</version>
		</dependency>

然后是配置文件

<?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:context="http://www.springframework.org/schema/context"
	xmlns:mongo="http://www.springframework.org/schema/data/mongo"
	xsi:schemaLocation="http://www.springframework.org/schema/context
          http://www.springframework.org/schema/context/spring-context-3.0.xsd
          http://www.springframework.org/schema/data/mongo
          http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd
          http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
	<context:property-placeholder location="classpath*:META-INF/mongodb/mongodb.properties"/>
	
	<!-- 定义mongo对象，对应的是mongodb官方jar包中的Mongo，replica-set设置集群副本的ip地址和端口 -->
	<mongo:mongo id="mongo" replica-set="localhost:27017">
		<!-- 一些连接属性的设置 -->	
		<mongo:options
		     connections-per-host="${mongo.connectionsPerHost}"
		     threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}"
		     connect-timeout="${mongo.connectTimeout}"
		     max-wait-time="${mongo.maxWaitTime}"
		     auto-connect-retry="${mongo.autoConnectRetry}"
		     socket-keep-alive="${mongo.socketKeepAlive}"
		     socket-timeout="${mongo.socketTimeout}"
		     slave-ok="${mongo.slaveOk}"
		     write-number="1"
		     write-timeout="0"
		     write-fsync="true"/>		
	</mongo:mongo>

	<!-- mongo的工厂，通过它来取得mongo实例,dbname为mongodb的数据库名，没有的话会自动创建 -->
	<mongo:db-factory dbname="test" mongo-ref="mongo"/>

	<!-- 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"/>
	</bean>
	
	<!-- 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.xxx.xxx.domain" />
	
	<!-- 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.xxx.xxx.persist.mongodb"/>

	<!-- To translate any MongoExceptions thrown in @Repository annotated classes -->
	<context:annotation-config />
    
</beans>

这样基本配置就完成了，其它深入操作将在后续文章中说明。