Tomcat uses Redis to store Session and tomcatredis

Tomcat uses Redis to store Session and tomcatredis

Tomcat Redis Session Github address.

Download the commons-pool2-2.2.jar, jedis-2.5.2.jar, tomcat-redis-session-manager-2.0.0.jar these three packages, put it under the tomcat directory lib directory.

Modify the context. xml file in the conf directory of tomcat.

Insert the following code in Context.

<Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />    <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager"     host="localhost"     port="6389"     database="0"     maxInactiveInterval="60"     />

For more details, see the github configuration.

In this way, a simple session storage environment using redis is configured, and the same configuration can be used for clusters.

Test Servlet:

@ WebServlet (urlPatterns = "/myhttp") public class MyHttpServlet extends HttpServlet {@ Override protected void doGet (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// get session HttpSession httpSession = request. getSession (); httpSession. setAttribute ("name", "name"); // set to 0 and never expire httpSession. setMaxInactiveInterval (1000); // make httpserssion invalid // httpSession. invalidate (); System. out. println (httpSession. getId (); response. getWriter (). print ("http ");}}

Start tomcat and access http: // localhost: 8080/myhttp. You can see it in redis.

The environment is successfully configured and can be used.