一、安装mongodb4.0.3（××）
1.1、官方安装文档
https://docs.mongodb.com/manual/tutorial/install-mongodb-on-red-hat/
1.2、tar.gz包下载地址
https://www.mongodb.com/download-center/community?jmp=docs
1.3、复制集官方配置
https://docs.mongodb.com/manual/administration/replica-set-member-configuration/
二、springproject版本依赖（×）
spring：5.1.1.release 以上
springdatamongodb:2.1.1.release 以上
三、配置mongotransactionmanager（springboot使用方式）
springboot 集成非常简单，配置mongotransastionmanager，目前spring-boot-starter-data-mongodb 版本较低不支持，因此暂未验证，springboot配置复制集参考springboot相关文档
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@configuration
static class config extends abstractmongoconfiguration {
@bean
mongotransactionmanager transactionmanager(mongodbfactory dbfactory) {
return new mongotransactionmanager(dbfactory);
}
// ...
}
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四、配置mongotransactionmanager（普通spring项目）
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<context:property-placeholder location="classpath:mongo.properties" ignore-unresolvable="true"
file-encoding="utf-8" />
<!--
重点配置
1.安全配置：credentials="${mongo.user}:${mongo.password}@${mongo.database}"
2.单机配置：host="${mongo.host}" port="${mongo.port}"
3.副本集配置：replica-set="${mongo.replset}"
-->
<mongo:mongo-client id="mongoclient" replica-set="${mongo.replset}">
<mongo:client-options min-connections-per-host="${mongo.minconnectionsperhost}"
write-concern="safe"
read-preference="nearest"
threads-allowed-to-block-for-connection-multiplier="${mongo.threadsallowedtoblockforconnectionmultiplier}"
connect-timeout="${mongo.connecttimeout}" max-wait-time="${mongo.maxwaittime}"
socket-keep-alive="${mongo.socketkeepalive}" socket-timeout="${mongo.sockettimeout}"
max-connection-idle-time="${mongo.maxconnectionidletime}"
max-connection-life-time="${mongo.maxconnectionlifetime}"
heartbeat-socket-timeout="${mongo.heartbeatsockettimeout}"
heartbeat-connect-timeout="${mongo.heartbeatconnecttimeout}"
min-heartbeat-frequency="${mongo.minheartbeatfrequency}"
heartbeat-frequency="${mongo.heartbeatfrequency}" />
</mongo:mongo-client>
<mongo:db-factory id="mongodbfactory" dbname="${mongo.database}"
mongo-ref="mongoclient" />
<bean id="mappingcontext"
class="org.springframework.data.mongodb.core.mapping.mongomappingcontext" />
<bean id="defaultmongotypemapper"
class="org.springframework.data.mongodb.core.convert.defaultmongotypemapper">
<constructor-arg name="typekey">
<null />
</constructor-arg>
</bean>
<bean id="mappingmongoconverter"
class="org.springframework.data.mongodb.core.convert.mappingmongoconverter">
<constructor-arg name="mongodbfactory" ref="mongodbfactory" />
<constructor-arg name="mappingcontext" ref="mappingcontext" />
<property name="typemapper" ref="defaultmongotypemapper" />
</bean>
<bean id="mongotemplate" class="org.springframework.data.mongodb.core.mongotemplate">
<constructor-arg name="mongodbfactory" ref="mongodbfactory" />
<constructor-arg name="mongoconverter" ref="mappingmongoconverter" />
</bean>
<!-- 重点配置 -->
<bean id="mongotransactionmanager" class="org.springframework.data.mongodb.mongotransactionmanager">
<constructor-arg name="dbfactory" ref="mongodbfactory"/>
</bean>
<tx:annotation-driven transaction-manager="mongotransactionmanager" proxy-target-class="true"/>
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五、使用事务（×）
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@service
public class stateservice {
@autowired
private mongotemplate teplate;
@transactional
void somebusinessfunction(step step) {
template.insert(step);
log.debug(1/0);
};
});
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六、mongo.properties 配置
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mongo.host=192.168.1.66
mongo.port=27017
mongo.replset=192.168.1.66:2000,192.168.1.66:2001,192.168.1.66:2002
mongo.minconnectionsperhost=10
mongo.threadsallowedtoblockforconnectionmultiplier=4
mongo.connecttimeout=30000
mongo.maxwaittime=3000
mongo.socketkeepalive=false
mongo.sockettimeout=30000
mongo.maxconnectionidletime=0
mongo.maxconnectionlifetime=0
mongo.heartbeatsockettimeout=20000
mongo.heartbeatconnecttimeout=10000
mongo.minheartbeatfrequency=3000
mongo.heartbeatfrequency=5000
mongo.database=labsta
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七、最后是重点（×××××）
7.1、必须使用复制集，单节点不支持，mongodb4.2 会支持分片集事务，复制集安装请自行研究
7.2、使用事务之前（@transaction），数据库和文档必须提前创建，如何解决呢？且看下篇
7.3、spring版本和springdatamongodb版本必须遵循 @springproject版本依赖
7.4、注意，此处的复制集不是4.0版本之前的主从复制集群，4.0之后已废弃主从模式
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://www.jianshu.com/p/2faf0e6b6627