使用SpringDataMongoDB怎么实现多文档事务?很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
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
@Configuration
static class Config extends AbstractMongoConfiguration {
@Bean
MongoTransactionManager transactionManager(MongoDbFactory dbFactory) {
return new MongoTransactionManager(dbFactory);
}
// ...
}
四、配置MongoTransactionManager(普通Spring项目)
<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"/>
五、使用事务(×)
@Service
public class StateService {
@Autowired
private MongoTemplate teplate;
@Transactional
void someBusinessFunction(Step step) {
template.insert(step);
log.debug(1/0);
};
});
六、Mongo.properties 配置
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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