SpringSession(springboot、redis和session整合)

官网：https://docs.spring.io/spring-session/docs/2.5.0/reference/html5/#samples

1、导入依赖

	   <!--redis依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!-- 整合 spring session 实现 session 共享-->
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
        </dependency>

2、编写application.yml配置文件

spring:
  redis:
    host: 192.168.10.123
    port: 6379

  # 配置session
  session:
    #存储在redis中
    store-type: redis
    # 过期时间30分钟，可不要
    timeout: 30m

3、配置类SessionConfig.java

可以不用配置，根据实际情况配置

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.session.web.http.CookieSerializer;
import org.springframework.session.web.http.DefaultCookieSerializer;

@Configuration
public class SessionConfig {

    @Bean
    public CookieSerializer cookieSerializer(){
        DefaultCookieSerializer cookieSerializer = new DefaultCookieSerializer();
        //设置cookie作用域
        cookieSerializer.setDomainName("mall.com");
        //可设置cookie的名字,默认SESSION
        cookieSerializer.setCookieName("SESSION");
        return cookieSerializer;
    }

    @Bean
    public RedisSerializer<Object> springSessionDefaultRedisSerializer() {
        //使用JSON的序列化方式来序列化对象到Redis中
        return new GenericJackson2JsonRedisSerializer();
    }
}

4、主启动类增加注解：@EnableRedisHttpSession

5、使用

在不同服务中：存入数据和取数据，都需以上四个步骤

public viod loginPage(HttpSession session){
	//设置存入的数据，data可以是实体对象
	public static final String LOGIN_USER = "loginUser";
	session.setAttribute(LOGIN_USER,data);
	//从session中取出数据
	session.getAttribute(LOGIN_USER);
 }
//直接从前端获取session数据
${session.loginUser}