mysql 'Too many connections' Too many connectionsmysqlexception

程序员文章站 2024-03-17 19:21:22

...

server端运行一段时间以后,数据库异常

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections"

原因：连接池中的连接没有关闭。
解决：我这里是 dao层的调用没有被事务管理，导致连接没有关闭。

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