Exception in thread "task-2" org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: HikariDataSource HikariDataSource (HikariPool-1) has been closed.
我有一个SQL脚本,只在应用启动时插入一些记录
spring.datasource.data=classpath:kana.sql
似乎可以通过大约10-20次,然后突然退出
我的application.properties
:
## default connection pool
spring.datasource.hikari.connectionTimeout=20000
spring.datasource.hikari.maximumPoolSize=5
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=create
## PostgreSQL
spring.datasource.url=jdbc:postgresql://10.0.0.100:5432/langsite
spring.datasource.username=postgres
spring.datasource.password=postgres
spring.datasource.driverClassName=org.postgresql.Driver
spring.datasource.initialization-mode=always
spring.datasource.data=classpath:kana.sql
server.port=4000
#drop n create table again, good for testing, comment this in production
# javax.persistence.schema-generation.scripts.action=create
# javax.persistence.schema-generation.create-source=metadata
# javax.persistence.schema-generation.drop-source=metadata
它似乎一开始就成功连接了,因为它可以创建表,插入一些记录,但是在插入过程的途中,它只是出现了。
答案 0 :(得分:1)
好像您的应用程序用完了池中的可用连接。 我猜这两件事是矛盾的:
这个
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=create
还有这个
spring.datasource.initialization-mode=always
spring.datasource.data=classpath:kana.sql
如果您想通过Hibernate创建架构,请尝试使用此选项来加载初始数据
spring.jpa.properties.hibernate.hbm2ddl.import_files=classpath:kana.sql
无论如何请参考这篇文章。应该有帮助 https://dimitr.im/loading-initial-data-with-spring