项目测试发生问题,方法正常结束,但是报了 Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Transaction marked as rollbackOnly org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested ex
F:\java\jdk8\jdk1.8.0_211\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:\软件\IntelliJ IDEA 2019.2.2\lib\idea_rt.jar=7513:D:\软件\IntelliJ IDEA 2019.2.2\bin" -Dfile.encoding=UTF-8 -classpath "D:\软件\IntelliJ IDEA 2019.2.2
HTTP Status 500 - Could not open JDBC Connection for transaction; nested exception is java.lang.NoClassDefFoundError: com/mchange/v2/sql/SqlUtils type Exception report message Could not open JDBC Connection for transaction; nested exception is java.l
严重: StandardWrapper.Throwableorg.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!
org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection org.springframework.orm.hibernate3.Hiberna
报错信息:Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not create connection to database server.) 问题来源mysql-connecter-java 版本过低 如果你mysql的版本是m