1、添加依赖
<dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>2.0.9.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>2.0.5.RELEASE</version> </dependency> <!-- spring-session-data-redis 依赖包 --> <dependency> <groupId>io.lettuce</groupId> <artifactId>lettuce-core</artifactId> <version>5.1.0.RC1</version> </dependency>
2、配置
spring-mvc.xml:
<!-- RedisHttpSessionConfiguration --> <bean class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <property name="maxInactiveIntervalInSeconds" value="${redis.session.timeout}" /> <!-- session过期时间,单位是秒 --> </bean> <!--LettuceConnectionFactory --> <bean class="org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory" p:host-name="127.0.0.1" p:port="6379" p:password="meander" />
web.xml添加拦截器
<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:applicationContext*.xml</param-value> </context-param>
<!-- 这个filter 要放在第一个 -->
<filter>
<filter-name>springSessionRepositoryFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSessionRepositoryFilter</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
3、使用spring-session
只要使用标准的servlet api调用session,在底层就会通过Spring Session得到的,并且会存储到Redis或其他你所选择的数据源中。
这里我们写个测试类LoginController:
@RequestMapping("/login") public ModelAndView login(HttpServletRequest request, HttpServletResponse response) { Map<String, Object> model = new HashMap<String, Object>(); String userName = request.getParameter("userName"); String password = request.getParameter("password"); HttpSession session = request.getSession(true); String p = request.getParameter("p"); if(StringUtils.isNotEmpty(p) || StringUtils.isEmpty((String)session.getAttribute("p"))) { session.setAttribute("p", p); } return new ModelAndView("login", model); }
然后写一个login.jsp页面:
<html>
<body>
<div><% String url = request.getLocalAddr() + ":" + request.getLocalPort(); %></div>
<div><%= url %></div>
<div>传入参数:${p}</div>
</body>
</html>
启动两个tomcat,一个通过http://127.0.0.1:8080/login?p=yori访问,
另一个通过http://127.0.0.1:8085/login