2.1 Memcached 2.2 Hazelcast 2.3 Spring Session 2.4 Tomcat Clustering StickyConfig stickyConfig = new StickyConfig(); stickyConfig.setSessionStorage(new DatabaseStorage()); stickyConfig.setLoadBalancer(new LoadBalancerA()); stickyConfig.start(); String sessionId = "user123"; Request request = new Request(sessionId); Response response = stickyConfig.processRequest(request); // ... stickyConfig.stop();