同样，之前一直好好的，今天上来看500了，求解答，也是mysql
ava:249) [undertow-servlet-2.0.29.Final.jar!/:2.0.29.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78) [undertow-servlet-2.0.29.Final.jar!/:2.0.29.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99) [undertow-servlet-2.0.29.Final.jar!/:2.0.29.Final]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376) [undertow-core-2.0.29.Final.jar!/:2.0.29.Final]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) [undertow-core-2.0.29.Final.jar!/:2.0.29.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_242]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_242]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_242]
Caused by: org.hibernate.TransactionException: Unable to rollback against JDBC Connection
at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.rollback(AbstractLogicalConnectionImplementor.java:122) ~[hibernate-core-5.4.12.Final.jar!/:5.4.12.Final]
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.rollback(JdbcResourceLocalTransactionCoordinatorImpl.java:304) ~[hibernate-core-5.4.12.Final.jar!/:5.4.12.Final]
at org.hibernate.engine.transaction.internal.TransactionImpl.rollback(TransactionImpl.java:142) ~[hibernate-core-5.4.12.Final.jar!/:5.4.12.Final]
at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:561) ~[spring-orm-5.2.4.RELEASE.jar!/:5.2.4.RELEASE]
... 116 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Communications link failure during rollback(). Transaction resolution unknown.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
at com.mysql.cj.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:1848) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
at com.zaxxer.hikari.pool.ProxyConnection.rollback(ProxyConnection.java:375) ~[HikariCP-3.4.2.jar!/:na]
at com.zaxxer.hikari.pool.HikariProxyConnection.rollback(HikariProxyConnection.java) ~[HikariCP-3.4.2.jar!/:na]
at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.rollback(AbstractLogicalConnectionImplementor.java:116) ~[hibernate-core-5.4.12.Final.jar!/:5.4.12.Final]
... 119 common frames omitted
日志，求人解答
