Caused by: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (12774723 > 4194304). You can change this value on the server by setting the max_allowed_packet' variable.at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3671)at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2508)at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2673)at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2549)at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861)
2.配置MySQLmax_allowed_packet并重啟MySQL
mysqld --max_allowed_packet=500M
service mysqld restart