How to initialize schema in spring-sessiona JDBC

问题

I'm using Spring Boot 2.0.x, Hibernate and Spring Session Jdbc with Mysql 5.7. I'm working under development environment, so Hibernate is configured to generate schemas every time:

spring.jpa.hibernate.ddl-auto=create-drop

And it works fine, but I have a problem with Spring Session... I tried set initialize-schema, but it doesn't work.

spring.session.jdbc.initialize-schema=always

Is it possible to auto generate full schema (all entities and SPRING_SESSION)?

It doesn't work for me with MySQL and H2 (I tried embedded option)

回答1:

I am describing the steps.It worked for me.

1- Add the dependency in your pom file.

<dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session-jdbc</artifactId>
    </dependency>

2-Add the sql file in your project with same path and same name Under "resources" file.

PATH : /org/springframework/session/jdbc/schema-mysql.sql

schema-mysql.sql

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;

I got the sql file from official spring github account.

https://github.com/spring-projects/spring-session/blob/master/spring-session-jdbc/src/main/resources/org/springframework/session/jdbc/schema-mysql.sql

3-Add below properties into application.properties

spring.session.jdbc.initialize-schema=always
spring.session.jdbc.schema=classpath:org/springframework/session/jdbc/schema-mysql.sql

If it don't work again,please let me know.Like I said,It worked for me.

回答2:

Try this setting in the application.properties

spring.session.store-type=jdbc
spring.session.jdbc.initialize-schema=always //spring will create required tables for us
spring.session.timeout.seconds=900

来源：https://stackoverflow.com/questions/53823174/how-to-initialize-schema-in-spring-sessiona-jdbc

标签

java

Spring

hibernate

spring-boot

spring-session