在处理Java该项目时，使用以下技术：
<properties>
<java.version>11</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!-- Spring Boot Starter Web for building web, including RESTful, applications using Spring MVC -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Spring Boot Starter Data JPA for Spring Data JPA and Hibernate -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<!--<version>2.7.18</version>-->
</dependency>
<!-- Spring Boot Starter Test for testing Spring Boot applications -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- H2 Database for in-memory database (for testing purposes) -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>2.1.214</version> <!--Values of types "BINARY(255)" and "CHARACTER VARYING(255)" are not comparable-->
<scope>runtime</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</dependency>
<!-- Jackson for JSON processing -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Spring Boot Maven Plugin for packaging Spring Boot applications -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- Lombok Maven Plugin for delombok process -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
使用该文件时application.properties：
spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=
spring.h2.console.enabled=true
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.hibernate.ddl-auto=update
spring.sql.init.mode=always
spring.sql.init.schema-locations=classpath:schema.sql
spring.sql.init.data-locations=classpath:import.sql
server.port=8081
spring.jpa.show-sql=true
logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql=TRACE
spring.h2.console.path=/h2-console
我收到运行时错误：
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Values of types "BINARY(255)" and "CHARACTER VARYING(255)" are not comparable; SQL statement:
alter table backlog_item_tasks add constraint FKigou96u26bqhftbug6ba1akfa foreign key (tasks_id) references task [90110-214]
...
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Values of types "BINARY(255)" and "CHARACTER VARYING(255)" are not comparable; SQL statement:
alter table backlog_item_tasks add constraint FK1jlaqd1fh1t60yjn2mu179ra1 foreign key (backlog_item_id) references backlog_item [90110-214]
...
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Values of types "BINARY(255)" and "CHARACTER VARYING(255)" are not comparable; SQL statement:
alter table estimation_log_entry add constraint FK4qne2wpk2c906qwlb0qt17k7s foreign key (task_id) references task [90110-214]
我尝试过的：
h2我尝试使用预先准备的SQL脚本（例如 import.sql（ ））向数据库填充所需的数据DML скрипт：
INSERT INTO backlog (id, name, description)
VALUES ('uuid-1', 'Backlog 1', 'Description for backlog 1');
INSERT INTO backlog_item (id, status, story, story_points, summary, type, product_id, release_id, sprint_id, backlog_id)
VALUES ('uuid-2', 'Open', 'Story 1', 5, 'Summary for story 1', 'Feature', 'uuid-product', 'uuid-release', 'uuid-sprint',
'uuid-1');
INSERT INTO task (id, name, description, hours_remaining, volunteer, backlog_item_id)
VALUES ('uuid-3', 'Task 1', 'Description for task 1', 10, 'Volunteer 1', 'uuid-2');
相应地，schema.sql( DDL скрипт)：
CREATE TABLE backlog
(
id VARCHAR(255) PRIMARY KEY,
name VARCHAR(255) NOT NULL,
description TEXT
);
CREATE TABLE backlog_item
(
id VARCHAR(255) PRIMARY KEY,
status VARCHAR(255),
story TEXT,
story_points INT,
summary TEXT,
type VARCHAR(255),
product_id VARCHAR(255),
release_id VARCHAR(255),
sprint_id VARCHAR(255),
backlog_id VARCHAR(255),
FOREIGN KEY (backlog_id) REFERENCES backlog (id)
);
CREATE TABLE task
(
id VARCHAR(255) PRIMARY KEY,
name VARCHAR(255) NOT NULL,
description TEXT,
hours_remaining INT,
volunteer VARCHAR(255),
backlog_item_id VARCHAR(255),
FOREIGN KEY (backlog_item_id) REFERENCES backlog_item (id)
);
配置application.properties如下：
1. Simple In-Memory Database
spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
上述模式仅在使用的浏览器中显示http://localhost:8081/h2-console/。
和：
3. Persistent Database in File
spring.datasource.url=jdbc:h2:file:./data/mydb`
ошибки выполнения按以下格式播放中间件：
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Unsupported database file version or invalid file header in file "E:/IdeaProject/PDP1/data/mydb.mv.db" [90048-214]
...
Caused by: org.h2.jdbc.JdbcSQLNonTransientConnectionException: Unsupported database file version or invalid file header in file "E:/IdeaProject/PDP1/data/mydb.mv.db"
...
Caused by: org.h2.mvstore.MVStoreException: The write format 3 is larger than the supported format 2 [2.1.214/5]
更新：
application.properties具有以下jdbc:h2:file选项：
spring.datasource.url=jdbc:h2:file:./data/mydb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
由于mydb.mv.db文件被锁定，也无法正常工作。
预期的：
预计在IDEA (Intellij IDEA)中收到以下格式的内容H2 бд：
