用户名优化

mallchat-common/src/main/resources/application.yml

@@ -20,6 +20,11 @@ spring:
     username: ${mallchat.mysql.username}
     password: ${mallchat.mysql.password}
     driver-class-name: com.mysql.cj.jdbc.Driver
+    hikari:
+      minimum-idle: 3
+      maximum-pool-size: 10
+      max-lifetime: 30000   #不能小于30秒，否则默认回到1800秒
+      connection-test-query: SELECT 1
   mvc:
     pathmatch:
       matching-strategy: ANT_PATH_MATCHER