Spring：在Tomcat群集故障转移中，HttpSession为SPRING_SECURITY_CONTEXT返回空对象

Tomcat会话未复制，并且在节点之一发生故障时导致用户注销，配置

hazelcast

步骤1：将以下依赖项添加到pom.xml

    <dependency>        <groupId>com.hazelcast</groupId>        <artifactId>hazelcast</artifactId>        <version>3.6.2</version>    </dependency>    <dependency>        <groupId>com.hazelcast</groupId>        <artifactId>hazelcast-wm</artifactId>        <version>3.6.2</version>    </dependency>

第2步：在现有过滤器的顶部添加以下代码段，

web.xml

hazelcast

<filter>    <filter-name>hazelcast-filter</filter-name>    <filter-class>com.hazelcast.web.spring.SpringAwareWebFilter</filter-class>    <!--        Name of the distributed map storing        your web session objects    -->    <init-param>        <param-name>map-name</param-name>        <param-value>my-sessions</param-value>    </init-param>    <init-param>        <param-name>config-location</param-name>        <param-value>/WEB-INF/hazelcast.xml</param-value>    </init-param>    <init-param>        <param-name>sticky-session</param-name>        <param-value>true</param-value>    </init-param>    <!-- Are you debugging? Default is false.-->    <init-param>        <param-name>debug</param-name>        <param-value>true</param-value>    </init-param></filter><filter-mapping>    <filter-name>hazelcast-filter</filter-name>    <url-pattern>/*</url-pattern>    <dispatcher>FORWARD</dispatcher>    <dispatcher>INCLUDE</dispatcher>    <dispatcher>REQUEST</dispatcher></filter-mapping><listener>    <listener-class>com.hazelcast.web.SessionListener</listener-class></listener>

步骤3：建立

hazelcast.xml

<hazelcast    xsi:schemaLocation="http://www.hazelcast.com/schema/config http://www.hazelcast.com/schema/config/hazelcast-config-3.6.xsd"    xmlns="http://www.hazelcast.com/schema/config"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"></hazelcast>

第4步：初始化

sessionRegistry

applicationContext.xml

<bean id="sessionRegistry"      />

重新启动您的应用程序，并且会话复制可以在tomcat故障转移上运行

文档参考：
http : //hazelcast.org/use-
cases/clustering/
http://docs.hazelcast.org/docs/3.5/manual/html/websessionreplication.htmlhttp://docs.hazelcast.org/docs/ 3.6 / manual / html-single /
index.html＃preface

配置参考：https :
//github.com/hazelcast/hazelcast-pre-samples/tree/master/hazelcast-
integration/spring-security