将？rewriteBatchedStatements = true 添加到JDBC网址的末尾。它会给你带来严重的性能提升。请注意，这是特定于MySql的，不会对任何其他JDBC驱动程序产生任何影响。

Add ?rewriteBatchedStatements=true to the end of your JDBC url. It'll give you a serious performance improvement. Note that this is specific to MySql, won't have any effect with any other JDBC drivers.