Druid 连接mysql 报skip not validate connection
用的druid关联连接池，数据库是mysql，一段时间不用之后就会报这个错误。之前有人说是mysql系统的问题。我从window换成linux也是这样。下面是我的配置文件
···
url:jdbc:mysql://xxx.xx.xxx.xxx:3306/XXX?Unicode=true&characterEncoding=utf8&autoReconnect=true
driverClassName:com.mysql.jdbc.Driver
username:root
password:123456
filters:stat
maxActive:100
initialSize:10
maxWait:60000
minIdle:20
maxIdle:100
timeBetweenEvictionRunsMillis:60000
minEvictableIdleTimeMillis:300000
validationQuery:SELECT 'x'
testWhileIdle:true
testOnBorrow:false
testOnReturn:false
maxOpenPreparedStatements:20
removeAbandoned:true
removeAbandonedTimeout:180
logAbandoned:true
spring里面的配置<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<!-- 数据库基本信息配置 -->
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<property name="driverClassName" value="${driverClassName}" />
<property name="filters" value="${filters}" />
<!-- 最大并发连接数 -->
<property name="maxActive" value="${maxActive}" />
<!-- 初始化连接数量 -->
<property name="initialSize" value="${initialSize}" />
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${maxWait}" />
<!-- 最小空闲连接数 -->
<property name="minIdle" value="${minIdle}" />
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />
<property name="validationQuery" value="${validationQuery}" />
<property name="testWhileIdle" value="${testWhileIdle}" />
<property name="testOnBorrow" value="${testOnBorrow}" />
<property name="testOnReturn" value="${testOnReturn}" />
<property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="${removeAbandoned}" />
<!-- 1800秒，也就是30分钟 -->
<property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="${logAbandoned}" />
</bean>
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public DruidPooledConnection getConnectionDirect(long maxWaitMillis) throws SQLException { int notFullTimeoutRetryCnt = 0; for (;;) { // handle notFullTimeoutRetry DruidPooledConnection poolableConnection; try { poolableConnection = getConnectionInternal(maxWaitMillis); } catch (GetConnectionTimeoutException ex) { if (notFullTimeoutRetryCnt <= this.notFullTimeoutRetryCount && !isFull()) { notFullTimeoutRetryCnt++; if (LOG.isWarnEnabled()) { LOG.warn("not full timeout retry : " + notFullTimeoutRetryCnt); } continue; } throw ex; } if (isTestOnBorrow()) { boolean validate = testConnectionInternal(poolableConnection.getConnection()); if (!validate) { if (LOG.isDebugEnabled()) { LOG.debug("skip not validate connection."); } Connection realConnection = poolableConnection.getConnection(); discardConnection(realConnection); continue; } } else { Connection realConnection = poolableConnection.getConnection(); if (realConnection.isClosed()) { discardConnection(null); // 传入null，避免重复关闭 continue; } if (isTestWhileIdle()) { final long currentTimeMillis = System.currentTimeMillis(); final long lastActiveTimeMillis = poolableConnection.getConnectionHolder().getLastActiveTimeMillis(); final long idleMillis = currentTimeMillis - lastActiveTimeMillis; long timeBetweenEvictionRunsMillis = this.getTimeBetweenEvictionRunsMillis(); if (timeBetweenEvictionRunsMillis <= 0) { timeBetweenEvictionRunsMillis = DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS; } if (idleMillis >= timeBetweenEvictionRunsMillis) { boolean validate = testConnectionInternal(poolableConnection.getConnection()); if (!validate) { if (LOG.isDebugEnabled()) { LOG.debug("skip not validate connection."); } discardConnection(realConnection); continue; } } } }2019-07-17 19:39:32赞同 展开评论 打赏
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