mysql 数据库连接超时的问题 autoReconnect=true

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mysql 数据库连接超时的问题 autoReconnect=true

最近在使用spring-jdbc数据库连接管理时,出现一个奇怪问题,当天部署运行没问题,第二天再试就报以下异常问题 org.springframework.dao.RecoverableDataAccessException: PreparedStatementCallback; SQL []; The last packet successfully received from the server was 56,799,849 milliseconds ago. The last packe…

mysql5 数据库连接丢失问题，autoReconnect=true不起作用

The last packet successfully received from the server was 55,404,563 millise 方案1 定时器方案2 修改连接池容量 mysql5 数据库连接丢失问题,autoReconnect=true不起作用 //todo...…

数据库连接超时：“The last packet successfully received from the server was xxx milliseconds ago”

产生的原因:应用方的数据库连接有效期时间,大于数据库自己设置的有效期. 解决方案: 一.修改druid配置(如果使用druid的话) spring.datasource.druid.validationQuery=select 1 spring.datasource.druid.testWhileIdle=true spring.datasource.druid.testOnBorrow=true spring.datasource.druid.testOnReturn=true PS.此方案对…

连接数据库超时设置autoReconnect=true

1,问题现象: com.mysql.jdbc.CommunicationsException: The last packet successfully received from the server was58129 seconds ago.The last packet sent successfully to the server was 58129 seconds ago, which is longer than the server configured value of 'wai…

MySQL 参数autoReconnect=true 解决8小时连接失效

<property name="testWhileIdle" value="true"></property> <property name="testOnBorrow" value="false"></property> <property name="t…

Hibernate连接数据库超时设置autoReconnect=true

如果连接闲置8小时 (8小时内没有进行数据库操作), mysql就会自动断开连接, 要重启tomcat. 不用hibernate的话, connection url加参数: autoReconnect=true 用hibernate的话, 加如下属性: <property name="connection.autoReconnect">true</property> <property name="connection.autoReconnect…

MySQL 参数autoReconnect=true 解决8小时连接失效(转)

即使在创建Mysql时url中加入了autoReconnect=true参数,一但这个连接两次访问数据库的时间超出了服务器端wait_timeout的时间限制,还是会CommunicationsException: The last packet successfully received from the server was xxx milliseconds ago. 服务器端的参数可以用 show global variables like 'wait_timeout'; set glob…