cas 持久化TGT到mysql JPA方式

cas server版本：6.0.0

添加依赖：

#使用gradle依赖管理    
compile group: 'org.apereo.cas', name: 'cas-server-support-jpa-ticket-registry', version: "${project.'cas.version'}"

进行application.properties配置：

##ticket持久化配置
cas.ticket.registry.jpa.user=root
cas.ticket.registry.jpa.password=1111
cas.ticket.registry.jpa.driverClass=com.mysql.cj.jdbc.Driver
cas.ticket.registry.jpa.url=jdbc:mysql://127.0.0.1:3306/cas?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false
cas.ticket.registry.jpa.dialect=org.hibernate.dialect.MySQL8Dialect
cas.ticket.registry.jpa.idleTimeout=5000
cas.ticket.registry.jpa.leakThreshold=10
cas.ticket.registry.jpa.autocommit=true

在mysql中的截图如下：

在此过程中遇到的问题一：查看错误日志从关键词查起，此异常不影响运行情况

2019-03-18 19:55:59,010 WARN [com.zaxxer.hikari.pool.ProxyLeakTask] - <Connection leak detection triggered for com.mysql.cj.jdbc.ConnectionImpl@6d963d70 on thread https-jsse-nio-8433-exec-1, stack trace follows>
java.lang.Exception: Apparent connection leak detected
        at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128) ~[HikariCP-3.2.0.jar!/:?]
        at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.1.Final.jar!/:5.4.1.Final]
        at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35) ~[hibernate-core-5.4.1.Final.jar!/:5.4.1.Final]
        at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:106) ~[hibernate-core-5.4.1.Final.jar!/:5.4.1.Final]
        at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:136) ~[hibernate-core-5.4.1.Final.jar!/:5.4.1.Final]
        at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:254) ~[hibernate-core-5.4.1.Final.jar!/:5.4.1.Final]
        
        这个要修改哪个参数？

cas server 中对于使用JPA将TGT持久化到mysql：
    配置如下：
        cas.ticket.registry.jpa.user=root
        cas.ticket.registry.jpa.password=1111
        cas.ticket.registry.jpa.driverClass=com.mysql.cj.jdbc.Driver
        cas.ticket.registry.jpa.url=jdbc:mysql://127.0.0.1:3306/cas?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false
        cas.ticket.registry.jpa.dialect=org.hibernate.dialect.MySQL8Dialect
    此时会出现：Apparent connection leak detected
    
    增加参数：
    cas.ticket.registry.jpa.idleTimeout=5000
    报错消失。

 由于我的项目中还是用了redis做验证码缓存，因此一直以为是redis的配置问题，看日志不仔细

com.zaxxer.hikari.pool.ProxyLeakTask释义：

hikari连接池的leakDetectionThreshold，也就是连接池泄露检测。
leakDetectionThreshold
用来设置连接被占用的超时时间，单位为毫秒，默认为0，表示禁用连接泄露检测。
如果大于0且不是单元测试，则进一步判断：(leakDetectionThreshold < SECONDS.toMillis(2) or (leakDetectionThreshold > maxLifetime && maxLifetime > 0)，会被重置为0 .

即如果要生效则必须>0，同时满足：不能小于2秒，而且当maxLifetime > 0时不能大于maxLifetime，该值默认为1800000，即30分钟。
作者：go4it
链接：https://juejin.im/post/5a73bb1ff265da4e8f0474a6

问题二：配置参数之后启动出现一下错误日志，但不影响运行【还没有找到修改异常的配置参数】

2019-03-18 19:53:54,606 WARN [org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration] - <Logging config file location 'file:/etc/cas/config/log4j2.xml' cannot be opened and will be ignored>
2019-03-18 19:53:54,676 INFO [org.apereo.cas.web.CasWebApplication] - <The following profiles are active: standalone>
2019-03-18 19:54:05,215 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,226 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings. CAS application context may not have initialized correctly.>
2019-03-18 19:54:05,226 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,298 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,329 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,329 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,330 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,337 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,337 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,338 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,339 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,340 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,340 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,341 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,341 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,342 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,346 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,357 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,357 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings. CAS application context may not have initialized correctly.>
2019-03-18 19:54:05,357 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,361 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,362 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,362 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,362 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,366 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,366 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings. CAS application context may not have initialized correctly.>
2019-03-18 19:54:05,366 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,370 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,371 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,371 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,371 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,372 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,372 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,373 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,374 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,374 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,375 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,375 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,377 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,377 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings. CAS application context may not have initialized correctly.>
2019-03-18 19:54:05,377 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,381 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,394 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,396 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,397 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,397 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,397 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,397 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,398 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,407 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,463 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:05,471 ERROR [org.apereo.cas.jpa.CasHibernatePhysicalNamingStrategy] - <Could not load configuration settings to determine case insensitivity.>
2019-03-18 19:54:18,993 INFO [org.apereo.cas.logging.web.LoggingConfigurationEndpoint] - <Located logging configuration reference in the environment as [file:/etc/cas/config/log4j2.xml]>