spring session + Redis 集成实现session共享

最新推荐文章于 2023-09-14 00:13:20 发布

转载最新推荐文章于 2023-09-14 00:13:20 发布 · 81 阅读

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原文链接：https://my.oschina.net/88sys/blog/893069

本文介绍使用Spring Session将HTTP会话数据存储到Redis的方法，包括两种实现方式：通过注解@EnableRedisHttpSession和XML配置。同时提供了详细的Maven依赖及配置示例。

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环境
1. Java 8
2. Redis 2.8.17
3. Spring 4
4. Tomcat 8.0.12
5. Eclipse Mars

maven pom文件

<?xml version="1.0" encoding="UTF-8"?>
<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>4.0.0</modelVersion>
	<groupId>com.concretepage</groupId>
	<artifactId>spring-session</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<name>spring-session</name>
        <description>Spring Project</description>	
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.3.RELEASE</version>
	</parent>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.session</groupId>
			<artifactId>spring-session-data-redis</artifactId>
			<version>1.3.0.RELEASE</version>
		</dependency>		
		<dependency>
                       <groupId>biz.paluch.redis</groupId>
                       <artifactId>lettuce</artifactId>
                       <version>3.5.0.Final</version>
                </dependency> 
                <dependency>
	               <groupId>jstl</groupId>
	               <artifactId>jstl</artifactId>
	               <version>1.2</version>
                </dependency>              
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>						
	</dependencies> 
</project>

第一种方式 @EnableRedisHttpSession

package com.concretepage;
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;
@EnableRedisHttpSession 
public class AppConfig {
	@Bean
	public LettuceConnectionFactory connectionFactory() {
		return new LettuceConnectionFactory();
	}
}

package com.concretepage;
import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;
public class AppInitializer extends AbstractHttpSessionApplicationInitializer {
	public AppInitializer() {
		super(AppConfig.class);
	}
}

package com.concretepage;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/home")
public class HomeServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		String attributeName = req.getParameter("attributeName");
		String attributeValue = req.getParameter("attributeValue");
                //add attribute in HttpSession
		req.getSession().setAttribute(attributeName, attributeValue);
		resp.sendRedirect(req.getContextPath() + "/");
	}
}

第二种方式 xml 配置实现

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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.xsd">
        
   <context:annotation-config/>
   <bean class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"/>
   <bean class="org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory"/>   
</beans>

Web .xml 配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
            http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">

        <display-name>Spring Session with Servlet</display-name> 
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/spring/app-config.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<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>
</web-app>

转载于:https://my.oschina.net/88sys/blog/893069