[Spring Data MongoDB]学习笔记－－注册一个Mongo实例

1. 通过Java based bean metadata

@Configuration
public class AppConfig {

public @Bean Mongo mongo() throws UnknownHostExceptioin {
return new Mongo("localhost");
}
}

上面的方式包含异常处理，这并不是我们想要的。

所以，应该尽量用下面这种方式MongoFactoryBean，或者后面的xml方式。

@Configuration
public class AppConfig {

public @Bean MongoFactoryBean mongo(){
MongoFactoryBean mongo = new MongoFactoryBean();
mongo.setHost("localhost");
return mongo;
}
}

2. 通过XML based metadata

<?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"> 
<!-- Default bean name is 'mongo' -->
<mongo:mongo host="localhost" port="27017"/>

</beans>

带有MongoOptions的更详细的配置可以如下，但是其中的值不是推荐值。

<beans>

<mongo:mongo host="localhost" port="27017">
<mongo:options connections-per-host="8"
threads-allowed-to-block-for-connection-multiplier="4"
connect-timeout="1000"
max-wait-time="1500}"
auto-connect-retry="true"
socket-keep-alive="true"
socket-timeout="1500"
slave-ok="true"
write-number="1"
write-timeout="0"
write-fsync="true"/>
</mongo:mongo/>

</beans>

副本配置

<mongo:mongo id="replicaSetMongo" replica-set="127.0.0.1:27017,localhost:27018"/>