1. 在 tomcat/lib 中增加以下jar包
  commons-pool2-2.4.2.jar
  jedis-2.8.0.jar
  tomcat-redis-session-manager-2.0.0.jar
  2. 修改tomcat/conf/context.xml, 增加这两行内容
  <Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />
  <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager"
  host="localhost" port="6379" database="0" password="foobared" maxInactiveInterval="60"/>
  其中,
  host: redis host
  port: redis port
  database: redis database
  password: redis password
  打开redis命令行监测, 启动tomcat后访问能看到session的写入和读取了