Mysql 无法针对JDBC连接提交

我正在使用springboot连接到mysql数据库。请在下面找到我的配置

spring.datasource.url=jdbc:<connection-url>
spring.datasource.username=<username>
spring.datasource.password=<password>
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.show-sql=true

spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.format_sql=true
spring.datasource.tomcat.max-active=50
spring.datasource.tomcat.max-idle=20
spring.datasource.tomcat.max-wait=20000
spring.datasource.tomcat.min-idle=15

以下是我的例外

 org.springframework.orm.jpa.JpaSystemException: Unable to commit against JDBC Connection; nested exception is org.hibernate.TransactionException: Unable to commit against JDBC Connection
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:353) ~[spring-orm-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:255) ~[spring-orm-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:538) ~[spring-orm-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:743) [spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:711) [spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.completeTransactionAfterThrowing(TransactionAspectSupport.java:665) [spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:370) [spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) [spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) [spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) [spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) [spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
    at com.server.controller.SubscribeController$$EnhancerBySpringCGLIB$$14f090fd.subscribeTopic(<generated>) [classes!/:0.0.1-SNAPSHOT]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_251]

org.springframework.orm.jpa.JpaSystemException:无法针对JDBC连接提交；嵌套异常为org.hibernate.TransactionException:无法针对JDBC连接提交
在org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException（HibernateJpaDialect.java:353）~[spring-orm-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateException如果可能（HibernateJpaDialect.java:255）~[spring-orm-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.orm.jpa.JpaTransactionManager.doCommit（JpaTransactionManager.java:538）~[spring-orm-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit（AbstractPlatformTransactionManager.java:743）[spring-tx-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.transaction.support.AbstractPlatformTransactionManager.commit（AbstractPlatformTransactionManager.java:711）[spring-tx-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
位于org.springframework.transaction.interceptor.TransactionSpectSupport.CompleteTransactionSpectActionAfterThrowing（TransactionSpectSupport.java:665）[spring-tx-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.transaction.interceptor.TransactionSpectSupport.invokeWithinTransaction（TransactionSpectSupport.java:370）[spring-tx-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:118）[spring-tx-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:186）[spring-aop-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.procedue（CglibAopProxy.java:749）[spring-aop-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:691）[spring-aop-5.2.5.RELEASE.jar！/：5.2.5.RELEASE]
在com.server.controller.SubscribeController$$EnhancerBySpringCGLIB$$14f090fd.subscribeTopic（）[classes！/：0.0.1-SNAPSHOT]
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）~[na:1.8.0\u 251]

得到答案了吗

更新了resource.properties

spring.datasource.url=jdbc:<connection-url>
spring.datasource.username=<username>
spring.datasource.password=<password>
#spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.show-sql=true

spring.jpa.hibernate.ddl-auto=update
spring.datasource.hikari.connectionTimeout=20000
spring.datasource.hikari.maximumPoolSize=5

spring.datasource.url=jdbc:
spring.datasource.username=
spring.datasource.password=
#spring.datasource.driver类名=com.mysql.cj.jdbc.driver
spring.jpa.show sql=true
spring.jpa.hibernate.ddl auto=update
spring.datasource.hikari.connectionTimeout=20000
spring.datasource.hikari.maximumPoolSize=5

得到答案了吗

更新了resource.properties

spring.datasource.url=jdbc:<connection-url>
spring.datasource.username=<username>
spring.datasource.password=<password>
#spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.show-sql=true

spring.jpa.hibernate.ddl-auto=update
spring.datasource.hikari.connectionTimeout=20000
spring.datasource.hikari.maximumPoolSize=5

spring.datasource.url=jdbc:
spring.datasource.username=
spring.datasource.password=
#spring.datasource.driver类名=com.mysql.cj.jdbc.driver
spring.jpa.show sql=true
spring.jpa.hibernate.ddl auto=update
spring.datasource.hikari.connectionTimeout=20000
spring.datasource.hikari.maximumPoolSize=5

我在Spring/Postgres堆栈上遇到了相同的异常。基本上，数据库不能及时返回/提交与查询匹配的所有行

可以通过在特定查询中使用的列上创建索引来修复此问题。这加快了查询速度

CREATE INDEX index_redflag_person
ON redflag_person (firstname, alias,lastname,address,birthplace);

---

我在Spring/Postgres堆栈上遇到了相同的异常。基本上，数据库不能及时返回/提交与查询匹配的所有行

可以通过在特定查询中使用的列上创建索引来修复此问题。这加快了查询速度

CREATE INDEX index_redflag_person
ON redflag_person (firstname, alias,lastname,address,birthplace);

---

为什么需要添加

@Transactional

？是否@Transactional不确保自动提交和自动关闭connection@user7294900我已经删除了注释，仍然是相同的问题为什么需要添加

@Transactional

，不确保自动提交和自动关闭connection@user7294900我已经删除了注释，仍然是同一个问题