一個專案啟動之后，控制臺有很多列印資訊，特別是這一行：{conn-10007, pstmt-20029} enter cache
有人知道這是什么意思嗎？
2019-04-24 13:35:08.122 [pool-2-thread-2] DEBUG [] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@a3e11ae]
2019-04-24 13:35:08.122 [pool-2-thread-1] DEBUG [] - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@669eb7be]
2019-04-24 13:35:08.171 [logsvc-Scheduler_Worker-2] DEBUG [] - {conn-10010, pstmt-20033} enter cache
2019-04-24 13:35:08.172 [logsvc-Scheduler_Worker-2] DEBUG [] - {conn-10010, pstmt-20034} enter cache
2019-04-24 13:35:08.173 [logsvc-Scheduler_Worker-1] DEBUG [] - {conn-10007, pstmt-20029} enter cache
2019-04-24 13:35:08.174 [logsvc-Scheduler_Worker-1] DEBUG [] - {conn-10007, pstmt-20035} enter cache
2019-04-24 13:35:08.176 [logsvc-Scheduler_Worker-1] DEBUG [] - {conn-10007, pstmt-20036} enter cache
2019-04-24 13:35:08.176 [logsvc-Scheduler_Worker-1] DEBUG [] - {conn-10007, pstmt-20037} enter cache
2019-04-24 13:35:08.238 [logsvc-Scheduler_QuartzSchedulerThread] DEBUG [] - {conn-10008, pstmt-20038} enter cache
uj5u.com熱心網友回復：
是什么專案？如何啟動的呢
uj5u.com熱心網友回復：
關閉pool-prepared-statements就不輸出了# 打開PSCache，并且指定每個連接上PSCache的大小
# pool-prepared-statements: true
# max-pool-prepared-statement-per-connection-size: 20
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