声明：本文转载自https://my.oschina.net/u/2342969/blog/1512185，转载目的在于传递更多信息，仅供学习交流之用。如有侵权行为，请联系我，我会及时删除。
本文将继续单机架构升级集群系列博文, 记录tomcat的Session共享工作的记录,希望能帮助到需要的朋友们,也欢迎大牛们批评指正!!
在博文( https://my.oschina.net/u/2342969/blog/995598 )中描述了本次架构升级的背景
在博文( https://my.oschina.net/u/2342969/blog/1036702 )中记录了redis主从集群搭建
在博文(https://my.oschina.net/u/2342969/blog/1162829 )中记录了 nginx+keepalived主从集群高可用搭建工作
以上博文有需要的朋友们可以观阅
本文将记录 tomcat的Session共享工作, 在此参考了 spring官网文档(
http://docs.spring.io/spring-session/docs/1.3.1.RELEASE/reference/html5/#httpsession-redis-xml
)
基于以前博文可以了解到,现阶段,我们是一台nginx、2台tomcat
在我们未做session共享的情况下,使用的nginx的iphash策略,以致停掉一个tomcat_A,所有请求都会集中到另外一台tomcat_B 并需要重新登陆, tomcat_A启动后,已经请求道tomcat_B的请求量还是不会减少,
做了session共享的应用，是基于 tomcat sessionmanager 做的，依赖tomcat版本，需要修改服务器配置，以致如需换应用服务器还需要重新搭建
现优化方案，基于spring session，将session共享做到应用层，净化服务器配置,便于应用迁移。
nginx ： 1.5.8
redis：版本任意（本文使用的2.8）
在maven项目pom.xml 增加以下依赖
<dependencies> <!-- ... --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>1.3.1.RELEASE</version> <type>pom</type> </dependency> <dependency> <groupId>biz.paluch.redis</groupId> <artifactId>lettuce</artifactId> <version>3.5.0.Final</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.4.RELEASE</version> </dependency> </dependencies> 在项目增加spring-session.xml
目录如下: src/main/webapp/WEB-INF/spring/spring-session.xml
<context:annotation-config/> <!--开启注解配置--> <!--springSession 配置--> <bean id="sessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <!--修改session的有效时间 以秒为单位,默认值是1800,便于测试修改为60秒--> <property name="maxInactiveIntervalInSeconds" value="60"></property> </bean> <!-- 如不使用P命名空间或者属性注入 默认redis ip为localhost,port为6379 --> <bean class="org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory" p:hostName="127.0.0.1" p:port="6379" p:password="your-password" p:timeout="3000" p:database="3" />加载spring-session.xml
<context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/spring/*.xml </param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> 在web.xml增加拦截器, 此拦截器一定要加载所有拦截器前面,DispatcherServlet启动之后
<filter> <filter-name>springSessionRepositoryFilter</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>springSessionRepositoryFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping> 在maven项目pom.xml 增加以下依赖
<dependencies> <!-- ... --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>1.3.1.RELEASE</version> <type>pom</type> </dependency> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.5.2</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.4.RELEASE</version> </dependency> </dependencies> 在项目增加spring-session.xml
目录如下: src/main/webapp/WEB-INF/spring/spring-session.xml
<context:annotation-config/> <!--开启注解配置--> <!--springSession 配置--> <bean id="sessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <!--修改session的有效时间 以秒为单位,默认值是1800,便于测试修改为60秒--> <property name="maxInactiveIntervalInSeconds" value="60"></property> </bean> <!-- 如不使用P命名空间或者属性注入 默认redis ip为localhost,port为6379 --> <bean class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <property name="hostName" value="10.34.59.12"></property> <property name="port" value="6379"></property> <property name="database" value="3"></property> </bean>此处深坑,如果一个项目配置了多个JedisConnectionFactory,下图bean无法找到唯一的JedisConnectionFactory
查看RedisHttpSessionConfiguration源码可以使用RedisTemplate关于session的redis,根据下图可以更改JedisConnectionFactory配置如下:
<bean id="sessionRedisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory"> <bean class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:database="3" p:host-name="${redis.host}" p:port="${redis.port}" p:usePool="true" p:password="${redis.pass}" p:pool-config-ref="jedisPoolConfig1" p:timeout="${redis.timeout}"> </bean> </property> </bean>加载spring-session.xml
<context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/spring/*.xml </param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> 在web.xml增加拦截器, 此拦截器一定要加载所有拦截器前面,DispatcherServlet启动之后
<filter> <filter-name>springSessionRepositoryFilter</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>springSessionRepositoryFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping> 到此应用就具备了session共享的功能, 有不当或者错误的地方,欢迎拍砖!!!
关于配置了多个JedisConnectionFactory, RedisHttpSessionConfiguration 报错的解决方案,烦请大神不吝赐教,报错如下:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisMessageListenerContainer' defined in class path resource [org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfiguration.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.springframework.data.redis.connection.RedisConnectionFactory]: : No qualifying bean of type [org.springframework.data.redis.connection.RedisConnectionFactory] is defined: expected single matching bean but found 2: jedisFactory,jedisFactory1; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [org.springframework.data.redis.connection.RedisConnectionFactory] is defined: expected single matching bean but found 2: jedisFactory,jedisFactory1 at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:747) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:462) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5118) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5634) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1863) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:618) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:565) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1487) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:97) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1328) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1420) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:848) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322) at sun.rmi.transport.Transport$2.run(Transport.java:202) at sun.rmi.transport.Transport$2.run(Transport.java:199) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:198) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [org.springframework.data.redis.connection.RedisConnectionFactory] is defined: expected single matching bean but found 2: jedisFactory,jedisFactory1 at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:970) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:811) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:739)
本文发表于2017年08月17日 18:36
(c)注：本文转载自https://my.oschina.net/u/2342969/blog/1512185，转载目的在于传递更多信息，并不代表本网赞同其观点和对其真实性负责。如有侵权行为，请联系我们，我们会及时删除.
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