【Spring Session】和 Redis 结合实现 Session 共享

【Spring Session】和 Redis 结合实现 Session 共享

参考官方文档

HttpSession with Redis Guide

https://docs.spring.io/spring-session/docs/2.1.5.RELEASE/reference/html5/guides/boot-redis.html

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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>redis-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>redis-service</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.3</version>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

application.properties

server.port=8002
spring.application.name=redis-service
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.application.name}:${random.uuid}
eureka.client.service-url.default-zone=http://localhost:8761/eureka
management.endpoints.web.exposure.include=routes
spring.redis.host=192.168.226.128
spring.redis.port=6379
spring.redis.password=
spring.redis.database=0
spring.session.store-type=redis
server.servlet.session.timeout= 7200
spring.session.redis.flush-mode=on_save
spring.session.redis.namespace=spring:session

主类

@EnableRedisHttpSession(redisFlushMode = RedisFlushMode.IMMEDIATE)
@EnableDiscoveryClient
@Slf4j
@RestController
@SpringBootApplication
public class RedisServiceApplication {

    public static void main(String[] args) {
        SpringApplication.run(RedisServiceApplication.class, args);
    }

    @Autowired
    RedisTemplate redisTemplate;

    @Autowired
    StringRedisTemplate stringRedisTemplate;

    @RequestMapping("/")
    public Map<String, Object> home(HttpServletRequest request, HttpServletResponse response) {
        HttpSession session = request.getSession();
        System.out.println(session.getId());

        SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss.SSS");
        String data = format.format(new Date());

        session.setAttribute("user", data);

        Map<String, Object> res = new HashMap<>();
        res.put("message", "redis");
        res.put("data", data);
        return res;
    }

    @RequestMapping("/set")
    public void set(String key, String value) {
        log.info("key = " + key + ", value = " + value);
        stringRedisTemplate.opsForValue().set(key, value);
    }

    @RequestMapping("/get")
    public String show(String key) {
        return stringRedisTemplate.opsForValue().get(key);
    }

}