传统Spring
先引入依赖
<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0modelVersion> <groupId>com.ssgroupId> <artifactId>demoartifactId> <version>0.0.1-SNAPSHOTversion> <packaging>warpackaging> <dependencies> <dependency> <groupId>org.springframework.sessiongroupId> <artifactId>spring-session-data-redisartifactId> <version>2.2.0.RELEASEversion> dependency> <dependency> <groupId>io.lettucegroupId> <artifactId>lettuce-coreartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-contextartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-coreartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-beansartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webmvcartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webartifactId> <version>5.2.0.RELEASEversion> dependency> <dependency> <groupId>javax.servletgroupId> <artifactId>javax.servlet-apiartifactId> <version>3.1.0version> <scope>providedscope> dependency> <dependency> <groupId>javax.servlet.jspgroupId> <artifactId>jsp-apiartifactId> <version>2.2version> <scope>providedscope> dependency> dependencies> <build> <finalName>demofinalName> <plugins> <plugin> <groupId>org.apache.maven.pluginsgroupId> <artifactId>maven-compiler-pluginartifactId> <version>3.7.0version> <configuration> <source>1.8source> <target>1.8target> <encoding>UTF-8encoding> configuration> plugin> plugins> build> project>
配置web.xml
xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1" >
<filter>
<filter-name>springSessionRepositoryFilterfilter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxyfilter-class>
filter>
<filter-mapping>
<filter-name>springSessionRepositoryFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>springDispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springDispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
新建一个配置类（因为SpringBoot之前也可以配置扫描和注解，所以配置类并不是只有SpringBoot专用）
package demo.config; import org.springframework.context.annotation.Bean; import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory; import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession; /** * 该注解创建了一个名为（springSessionRepositoryFilter）的Bean，是Filter的实现类。这个Bean的作用是将HttpSession替换成Spring Session，这里的Spring Session由Redis支持 * */ @EnableRedisHttpSession public class SpringSessionConfig { /** * 创建一个RedisConnectionFactory将Spring Session连接到Redis Server * @return */ @Bean public LettuceConnectionFactory connectionFactory() { return new LettuceConnectionFactory(); } }
新建一个controller
package demo.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class DemoController { @RequestMapping("/index") public String index(HttpServletRequest req) { req.setAttribute("info", "Hello!Spring-Session!!" + req.getSession().getId()); return "index"; } }
配置spring.xml（扫描配置类所在的包，启用注解）
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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="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
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
<context:component-scan base-package="demo.config">context:component-scan>
<context:annotation-config>context:annotation-config>
beans>
配置spring-mvc.xml（扫描Controller）
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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="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
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
<context:component-scan base-package="demo.controller">context:component-scan>
<mvc:annotation-driven>mvc:annotation-driven>
<mvc:default-servlet-handler/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/">property>
<property name="suffix" value=".jsp">property>
bean>
beans>
新建一个jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title heretitle> head> <body> <h2>${info }h2> body> html>
整个工程目录如下：
没错，这都是老项目的结构，现在大多用SpringBoot，但是我这个示例是针对老项目的。
打包项目，分别放在两个不同端口的tomcat里面，启动测试
另一个
查看redis
SpringBoot整合Spring-Session
引入依赖
<dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.sessiongroupId> <artifactId>spring-session-data-redisartifactId> dependency> <dependency> <groupId>io.lettucegroupId> <artifactId>lettuce-coreartifactId> dependency>
配置application.properties
spring.session.store-type=redis spring.session.redis.flush-mode=on-save spring.session.redis.namespace=spring:session spring.redis.host=localhost spring.redis.port=6379
配置类
package com.example.SpringBootSpringSession; import org.springframework.context.annotation.Bean; import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory; import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession; /** * 该注解创建了一个名为（springSessionRepositoryFilter）的Bean，是Filter的实现类。这个Bean的作用是将HttpSession替换成Spring Session，这里的Spring Session由Redis支持 * */ @EnableRedisHttpSession public class SpringSessionConfig { /** * 创建一个RedisConnectionFactory将Spring Session连接到Redis Server * @return */ @Bean public LettuceConnectionFactory connectionFactory() { return new LettuceConnectionFactory(); } }
Controller
package com.example.SpringBootSpringSession; import javax.servlet.http.HttpServletRequest; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class DemoController { @RequestMapping("/index") public String index(HttpServletRequest req) { return "Hello!Spring-Session!!" + req.getSession().getId(); } }
分别两个端口启动
另一个
redis
