【mysql】【springboot】启动报错Could not create connection to database server. Attempted reconnect 3 times. Giving up

原因是少了时区,加&serverTimezone=UTC

jdbc:mysql://127.0.0.1:3306/my_test?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&useSSL=false&serverTimezone=UTC

参考文章:https://www.cnblogs.com/flyingDragon/p/11268920.html

原文地址:https://www.cnblogs.com/xiaostudy/p/12329426.html

时间: 2024-08-10 09:18:40

【mysql】【springboot】启动报错Could not create connection to database server. Attempted reconnect 3 times. Giving up的相关文章

通过dbcp链接池对数据库操作报 Cannot create PoolableConnectionFactory (Could not create connection to database server. Attempted reconnect 3 times. Giving up.)--解决方案

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Could not create connection to database server. Atte

java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:108) ~[mysql-connector-java-8.0.11.jar:8.0.

jeecg启动报错“com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.”的解决办法

在运行"maven build"-->"tomcat:run"之后,报如下错误: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

java项目连接jdbc报错:com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server

原因:相关jar包版本太低 解决方法:下载最新版的mysql-connector-java即可 原文地址:https://www.cnblogs.com/zhengna/p/9098694.html

springboot启动报错start bean 'eurekaAutoServiceRegistration' NullPointerException

解决方案参考:https://blog.csdn.net/hhj13978064496/article/details/82825365 我将eureka的依赖包放到了依赖包的最下面,启动报错, 如下: <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId&

springboot启动报错:&quot;Error starting ApplicationContext. To display the conditions report re-run your application with &#39;debug&#39; enabled.&quot;

报错内容 java.lang.Object.wait(Native Method)java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:41)2019-02-14 14:58:00.326 INFO 17688 --- [ main] Condition

SQL Developer 4.0 启动报错“unable to create an instance of the java virtual machine located at path”

安装了Oracle之后,第一件事情就是想想怎么去连接,进而操作.SQL Developer是官方提供的强大工具,个人看来也是第一选择. 目前官网提供的最新版是4.0.1.14.48,下载下来之后,就跃跃欲试了.将下载下来的包解压,直接运行sqldeveloper.exe这个文件,选择了本地安装的JDK路径,之后却不幸的报错了,提示"unable to create an instance of the java virtual machine located at path",具体界面

jmeter连接mysql数据库报错Cannot create PoolableConnectionFactory (Could not create connection to database server.)

今天在学习jmeter的jdbc取样器,发现在配置完JDBC Connection Configuration和JDBC Request后,点击运行.在查看结果树中显示响应数据: Cannot create PoolableConnectionFactory (Could not create connection to database server.) 尝试多种方法后发现是由于mysql驱动版本太低导致. 报错时,我的jmeter版本是3.1,jdk版本是1.8,mysql版本是8.0.11

springboot启动报错退出,To display the conditions report re-run your application with &#39;debug&#39; enabled.

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2019-01-19 12:01:39.870 ERROR 8324 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : ***************************APPLICATIO