Question

我在服务器运行超过一天后看到此错误。服务器启动时没有错误。

org.springframework.jms.listener.adapter.ListenerExecutionFailedException: Listener method 'onMessage' threw exception; nested exception is java.lang.NoClassDefFoundError: com/mysql/jdbc/ParameterBindings
        at grails.plugin.jms.listener.adapter.PersistenceContextAwareListenerAdapter.invokeListenerMethod(PersistenceContextAwareListenerAdapter.groovy:44)
        at grails.plugin.jms.listener.adapter.LoggingListenerAdapter.onMessage(LoggingListenerAdapter.groovy:48)
        at grails.plugin.jms.listener.adapter.PersistenceContextAwareListenerAdapter.onMessage(PersistenceContextAwareListenerAdapter.groovy:33)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: com/mysql/jdbc/ParameterBindings
        at com.mysql.jdbc.ConnectionImpl.clientPrepareStatement(ConnectionImpl.java:1450)
        at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4165)
        at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4069)

Answer 1

此问题可能是由于数据库不活动。以下设置可能会帮助您在很长一段时间内保持数据库连接处于活动状态（如果没有）：

timeBetweenEvictionRunsMillis = 5000
minEvictableIdleTimeMillis = 60000
validationQuery = "SELECT 1"
validationQueryTimeout = 3
validationInterval = 15000
testOnBorrow = true
autoReconnect=true
testWhileIdle = true

java.lang.NoClassDefFoundError：com / mysql / jdbc / ParameterBindings

1 个答案: