druid 版本 1.1.22 mysql-connector-java 版本 8.0.17
错误1
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 1500, active 199, maxActive 64, creating 0 at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1730) at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1397) at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:5059) at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:5055) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1374) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1366) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:79) at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) at org.apache.shardingsphere.shardingjdbc.jdbc.core.connection.ShardingConnection.createConnection(ShardingConnection.java:74) at org.apache.shardingsphere.shardingjdbc.jdbc.adapter.AbstractConnectionAdapter.createConnections(AbstractConnectionAdapter.java:143) ... 122 common frames omitted
错误2
Caused by: java.sql.SQLException: statement is closed at com.alibaba.druid.pool.DruidPooledStatement.checkOpen(DruidPooledStatement.java:182) at com.alibaba.druid.pool.DruidPooledStatement.getResultSet(DruidPooledStatement.java:643) at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.getResultSet(ShardingPreparedStatement.java:140) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getFirstResultSet(DefaultResultSetHandler.java:237) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:187) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) at sun.reflect.GeneratedMethodAccessor285.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:426) ... 91 common frames omitted
错误一旦出现，一直持续，必须重启机器才能恢复