單點優化系列--session共享踩坑記
本文將繼續單機架構升級集羣系列博文, 記錄tomcat的Session共享工做的記錄,但願能幫助到須要的朋友們,也歡迎大牛們批評指正!! html
背景
在博文( https://my.oschina.net/u/2342969/blog/995598 )中描述了本次架構升級的背景html5
在博文( https://my.oschina.net/u/2342969/blog/1036702 )中記錄了redis主從集羣搭建 java
在博文(https://my.oschina.net/u/2342969/blog/1162829 )中記錄了 nginx+keepalived主從集羣高可用搭建工做 nginx
以上博文有須要的朋友們能夠觀閱web
本文將記錄 tomcat的Session共享工做, 在此參考了 spring官網文檔(redis
http://docs.spring.io/spring-session/docs/1.3.1.RELEASE/reference/html5/#httpsession-redis-xmlspring
)express
概述
基於之前博文能夠了解到,現階段,咱們是一臺nginx、2臺tomcat apache
在咱們未作session共享的狀況下,使用的nginx的iphash策略,以至停掉一個tomcat_A,全部請求都會集中到另一臺tomcat_B 並須要從新登錄, tomcat_A啓動後,已經請求道tomcat_B的請求量仍是不會減小,tomcat
作了session共享的應用，是基於 tomcat sessionmanager 作的，依賴tomcat版本，須要修改服務器配置，以至如需換應用服務器還須要從新搭建
現優化方案，基於spring session，將session共享作到應用層，淨化服務器配置,便於應用遷移。
環境準備
- centOs：6.5
-
nginx ： 1.5.8
-
redis：版本任意（本文使用的2.8）
注意事項
- spring session依賴spring mvc
- 本文基於redis實現session共享
基於lettuce完成
pom依賴
在maven項目pom.xml 增長如下依賴
<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>
session共享spring配置
在項目增長spring-session.xml
目錄以下: src/main/webapp/WEB-INF/spring/spring-session.xml
<context:annotation-config/> <!--開啓註解配置-->
<!--springSession 配置-->
<bean id="sessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">
<!--修改session的有效時間 以秒爲單位,默認值是1800,便於測試修改成60秒-->
<property name="maxInactiveIntervalInSeconds" value="60"></property>
</bean>
<!-- 如不使用P命名空間或者屬性注入 默認redis ip爲localhost,port爲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" />
修改web.xml
加載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增長攔截器, 此攔截器必定要加載全部攔截器前面,DispatcherServlet啓動以後
<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>
基於jedis完成
pom依賴
在maven項目pom.xml 增長如下依賴
<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>
session共享spring配置
在項目增長spring-session.xml
目錄以下: src/main/webapp/WEB-INF/spring/spring-session.xml
<context:annotation-config/> <!--開啓註解配置-->
<!--springSession 配置-->
<bean id="sessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">
<!--修改session的有效時間 以秒爲單位,默認值是1800,便於測試修改成60秒-->
<property name="maxInactiveIntervalInSeconds" value="60"></property>
</bean>
<!-- 如不使用P命名空間或者屬性注入 默認redis ip爲localhost,port爲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>
此處深坑,若是一個項目配置了多個JedisConnectionFactory,下圖bean沒法找到惟一的JedisConnectionFactory
查看RedisHttpSessionConfiguration源碼可使用RedisTemplate關於session的redis,根據下圖能夠更改JedisConnectionFactory配置以下:
<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>
修改web.xml
加載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增長攔截器, 此攔截器必定要加載全部攔截器前面,DispatcherServlet啓動以後
<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>
到此應用就具有了session共享的功能, 有不當或者錯誤的地方,歡迎拍磚!!!
關於配置了多個JedisConnectionFactory, RedisHttpSessionConfiguration 報錯的解決方案,煩請大神不吝賜教,報錯以下:
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)
相關文章
- 1. 分佈式系列 單點登錄和session共享
- 2. Spark踩坑記：共享變量
- 3. Spark踩坑記——共享變量
- 4. springboot+redis單點登陸session共享
- 5. laravel共享session, 實現單點登陸
- 6. nginx+redis+tomcat7構建session共享 踩的坑
- 7. vue踩坑總結 & 優化點
- 8. session共享那點事
- 9. Vue多頁面優化踩坑記錄
- 10. 第三章 Session共享&單點登陸筆記
- 更多相關文章...
- • MySQL的優勢（優點） - MySQL教程
- • SEO - 搜索引擎優化 - 網站建設指南
- • Tomcat學習筆記（史上最全tomcat學習筆記）
- • 算法總結-廣度優先算法
相關標籤/搜索
每日一句
-
每一个你不满意的现在，都有一个你没有努力的曾经。
最新文章
- 1. 字節跳動21屆秋招運營兩輪面試經驗分享
- 2. Java 3 年，25K 多嗎？
- 3. mysql安裝部署
- 4. web前端開發中父鏈和子鏈方式實現通信
- 5. 3.1.6 spark體系之分佈式計算-scala編程-scala中trait特性
- 6. dataframe2
- 7. ThinkFree在線
- 8. 在線畫圖
- 9. devtools熱部署
- 10. 編譯和鏈接
歡迎關注本站公眾號,獲取更多信息
