1.pom.xml添加依赖：

<!-- 数据库session管理 -->
<dependency>
  <groupId>org.springframework.session</groupId>
  <artifactId>spring-session-jdbc</artifactId>
</dependency>

2.application.properties添加配置

spring.session.store-type=jdbc

3.需要在数据库中创建两张表：

DROP TABLE IF EXISTS SPRING_SESSION_ATTRIBUTES;
DROP TABLE IF EXISTS SPRING_SESSION;
CREATE TABLE SPRING_SESSION (
    PRIMARY_ID CHAR(36) NOT NULL,
    SESSION_ID CHAR(36) NOT NULL,
    CREATION_TIME BIGINT NOT NULL,
    LAST_ACCESS_TIME BIGINT NOT NULL,
    MAX_INACTIVE_INTERVAL INT NOT NULL,
    EXPIRY_TIME BIGINT NOT NULL,
    PRINCIPAL_NAME VARCHAR(100),
    CONSTRAINT SPRING_SESSION_PK PRIMARY KEY (PRIMARY_ID)
) ENGINE=INNODB ROW_FORMAT=DYNAMIC;

CREATE UNIQUE INDEX SPRING_SESSION_IX1 ON SPRING_SESSION (SESSION_ID);
CREATE INDEX SPRING_SESSION_IX2 ON SPRING_SESSION (EXPIRY_TIME);
CREATE INDEX SPRING_SESSION_IX3 ON SPRING_SESSION (PRINCIPAL_NAME);

CREATE TABLE SPRING_SESSION_ATTRIBUTES (
    SESSION_PRIMARY_ID CHAR(36) NOT NULL,
    ATTRIBUTE_NAME VARCHAR(200) NOT NULL,
    ATTRIBUTE_BYTES BLOB NOT NULL,
    CONSTRAINT SPRING_SESSION_ATTRIBUTES_PK PRIMARY KEY (SESSION_PRIMARY_ID, ATTRIBUTE_NAME),
    CONSTRAINT SPRING_SESSION_ATTRIBUTES_FK FOREIGN KEY (SESSION_PRIMARY_ID) REFERENCES SPRING_SESSION(PRIMARY_ID) ON DELETE CASCADE
) ENGINE=INNODB ROW_FORMAT=DYNAMIC;

4.如何设置session的有效时间

src/main/resources/application.properties
spring.session.store-type=jdbc # Session store type.
server.servlet.session.timeout= # Session timeout.

例子：

spring session官网：Spring Session

​看到最后，画重点了，如果您需要（智慧餐厅）有关设备，或者身边有这样的资源，可以推荐给我，达成合作后，你懂的，致富链接： 

未来餐饮革命：加入我们的“智能餐厅”代理、自主开拓市场计划！