Mysql:data Source rejected establishment of connection, message from server: "Too many connections"

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Com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException:Data Source rejected establishment of connection, Message from server: "Too many Connections" "Too many connections" error try to increase the max_connections configuration of MySQL, check whether the service has a connection leak problem, the key is There is no shutdown connection mysql default configuration is 100, the creation of the server configuration is 1000, you can learn to increase the MySQL max_connections (maximum number of connections)

Mysql:data Source rejected establishment of connection, message from server: "Too many connections"