求助，这里run，访问/页面后就报错，可能跟druid有关，求助～
2018-12-21 16:46:38.732 INFO 26450 --- [reate-876802782] com.alibaba.druid.pool.DruidDataSource : put physical connection to pool failed.
2018-12-21 16:46:38.736 INFO 26450 --- [ Thread-3] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2018-12-21 16:46:38.737 ERROR 26450 --- [reate-876802782] com.alibaba.druid.pool.DruidDataSource : create connection holder error
java.sql.SQLException: Could not retrieve transation read-only status server
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:949) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:939) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3976) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3947) ~[mysql-connector-java-5.1.30.jar:na]
at com.alibaba.druid.pool.DruidConnectionHolder.<init>(DruidConnectionHolder.java:143) ~[druid-1.1.3.jar:1.1.3]
at com.alibaba.druid.pool.DruidConnectionHolder.<init>(DruidConnectionHolder.java:84) ~[druid-1.1.3.jar:1.1.3]
at com.alibaba.druid.pool.DruidDataSource.put(DruidDataSource.java:2024) ~[druid-1.1.3.jar:1.1.3]
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2282) [druid-1.1.3.jar:1.1.3]
Caused by: java.sql.SQLException: Unknown system variable 'tx_read_only'
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4232) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4164) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2832) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2781) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1569) ~[mysql-connector-java-5.1.30.jar:na]
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3970) ~[mysql-connector-java-5.1.30.jar:na]
... 5 common frames omitted
配置文件也照着老师的写的
