redis 储存session
在spring5以上的版本中，已经集成了redis session的访问控制，只要配置好，不用编码，即可实现redis的session共享。
建立web项目
引入maven
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>cn.taotao</groupId> <artifactId>redisSession</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>redisSession Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <spring.version>5.3.3</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-context --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-core --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-expression --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-web --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> <version>2.9.0</version> </dependency> <!-- https://mvnrepository.com/artifact/redis.clients/jedis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>3.3.0</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-commons --> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-commons</artifactId> <version>2.4.3</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-redis --> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>2.4.3</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.session/spring-session-core --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-core</artifactId> <version>2.4.2</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.session/spring-session-data-redis --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>2.4.2</version> </dependency> </dependencies> <build> <finalName>redisSession</finalName> </build> </project>
编写 applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:component-scan base-package="cn.taotao.springsession"/> <context:annotation-config/> </beans>
spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="suffix" value=".jsp"></property> <property name="prefix" value="/"></property> </bean> </beans>
spring-session.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxIdle" value="10"/><!-- 最大空闲连接数, 默认8个 --> <property name="maxTotal" value="20"/><!-- 最大连接数, 默认8个 --> <property name="blockWhenExhausted" value="true"/><!-- 连接耗尽时是否阻塞, false报异常,ture阻塞直到超时, 默认true --> <property name="maxWaitMillis" value="1000"/><!-- 获取连接时的最大等待毫秒数(如果设置为阻塞时BlockWhenExhausted),如果超时就抛异常, 小于零:阻塞不确定的时间, 默认-1 --> <property name="testOnBorrow" value="true"/><!-- 在获取连接的时候检查有效性, 默认false --> </bean> <!-- redis连接配置，依次为主机ip，端口，密码，是否使用池，连接池配置引用 --> <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:host-name="127.0.0.1" p:port="6379" p:usePool="true" p:pool-config-ref="jedisPoolConfig"> </bean> <!-- 配置spring-session --> <bean class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <!-- session过期时间,单位是秒 --> <property name="maxInactiveIntervalInSeconds" value="1200"></property> </bean> </beans>
web.xml
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- spring session的过滤器配置，注意此过滤器必须放在其他过滤器之前 --> <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> </filter-mapping> <!-- springmvc配置 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通过初始化参数，指定xml文件的位置 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
编写jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.util.Date" %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>spring session</title> </head> <body> <% System.out.println(new Date()+"=============tomcat1================="); session.setAttribute("tomcat1", "I am tomcat1"); %> <h1>hello world!</h1><br> <p><%=session.getId()%>======<%=new Date()%></p> <p>tomcat1======<%=session.getAttribute("tomcat1")%></p> <p>tomcat2======<%=session.getAttribute("tomcat2")%></p> </body> </html>
测试，通过。
