MYSQL Packet for query is too large （转）

运行测试程序，向db里存LOG数据，数据有点大，1M多,结果报出了下面的异常信息：

com.mysql.jdbc.PacketTooBigException: Packet for query is too large (1638914 > 1048576). You can change this value on the server by setting the max_allowed_packet' variable.
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2691)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1612)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)

从网上找到的解决方法，在my.ini里的[mysqld]增加如下部分
[mysqld]
max_allowed_packet=64M

注意，在[client]和[mysql]部分增加无效，那个是客户端读取的参数。