Unable to acquire JDBC Connection 和: Caused by: java.sql.SQLTransientConnectionException: HikariPool-1- Connectionisnot available, request timedoutafter 30002ms. at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:676) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool....
characterEncoding=UTF-8"/><propertyname="javax.persistence.jdbc.user"value="你账号一般是root看你改没改过"/><propertyname="javax.persistence.jdbc.driver"value="com.mysql.jdbc.Driver"/><propertyname="javax.persistence.jdbc.password"value="你密码,我不能告诉你我自己的 /> <property name="eclipelin...
SpanId : ]- Service Exception : class javax.persistence.PersistenceException:javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:447) ~...
嵌套异常 org.hibernate.exception.jdbcconnectionexception 表明在尝试获取JDBC连接时失败。 检查数据库连接配置是否正确: 确保在应用程序的配置文件(如 application.properties 或application.yml)中正确设置了数据库连接信息,包括URL、用户名、密码等。 示例配置(application.properties): properties spring.datasource.url=...
image.png JDBC连接MYSQL数据库： package cn.outofmemory.test;import java.sql.Connection;import ...
[TxId : , SpanId : ]- Service Exception : class javax.persistence.PersistenceException:javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692) at ...
当事务提交或者回滚后session 自动失效 openSession:每次都会打开一个新的session.加入每次使用多次。则...
2019-12-11 20:05 −当JPA获取数据库数据连接时,如果连接数超过最大连接数的配置,系统就会报错: Unable to acquire JDBC Connection 和: Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Con... 二奎 0 10210 spring data jpa快速入门案例 ...
2019-12-11 20:05 −当JPA获取数据库数据连接时,如果连接数超过最大连接数的配置,系统就会报错: Unable to acquire JDBC Connection 和: Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Con... 二奎 0 10219 spring data jpa 使用SQL语句查询 ...