13:14:49.912 logback [pool-3-thread-1] ERROR c.alibaba.druid.pool.DruidDataSource - init datasource error, url: jdbc:mysql://localhost:3306/common-db?useUnicode=true&characterEncoding=UTF-8
java.sql.SQLException: Could not retrieve transaction isolation level from server
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910)
    at com.mysql.jdbc.Connection.getTransactionIsolation(Connection.java:3825)
    at com.alibaba.druid.filter.FilterChainImpl.connection_getTransactionIsolation(FilterChainImpl.java:347)
    at com.alibaba.druid.filter.FilterAdapter.connection_getTransactionIsolation(FilterAdapter.java:871)
    at com.alibaba.druid.filter.FilterChainImpl.connection_getTransactionIsolation(FilterChainImpl.java:344)
    at com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl.getTransactionIsolation(ConnectionProxyImpl.java:260)
    at com.alibaba.druid.pool.DruidConnectionHolder.<init>(DruidConnectionHolder.java:117)
    at com.alibaba.druid.pool.DruidConnectionHolder.<init>(DruidConnectionHolder.java:75)
    at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:678)
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:988)
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:984)
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:103)
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
    at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:84)
    at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:70)
    at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:337)
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)
    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)
    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325)
    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:148)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)
    at com.sun.proxy.$Proxy104.selectList(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231)
    at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:128)
    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)
    at com.sun.proxy.$Proxy105.selectTradeEntrustByStatus(Unknown Source)
    at com.sie.service.impl.TradeEntrustServiceImpl.selectTradeEntrustByStatus(TradeEntrustServiceImpl.java:331)
    at com.sie.service.impl.TradeEntrustServiceImpl$$FastClassBySpringCGLIB$$b58c6261.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:652)
    at com.sie.service.impl.TradeEntrustServiceImpl$$EnhancerBySpringCGLIB$$a822aadf.selectTradeEntrustByStatus(<generated>)
    at com.sie.Application.dealMarrideal(Application.java:81)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)