now maybe jdbc have problem that there are too many connections and they do not release, so change the property of datasource: init = 1, min = 1, max = 100, and idle time is 10 minutes.
now maybe jdbc have problem that there are too many connections and they do not release, so change the property of datasource: init = 1, min = 1, max = 100, and idle time is 10 minutes.