Mongodb与spring集成

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。