spring boot data jpa: operations allowed after connection closed连接异常

参考http://www.jianshu.com/p/1626d41572f2

#以下为连接池的相关参数配置
spring.datasource.primary.max-idle=10
spring.datasource.primary.max-wait=10000
spring.datasource.primary.min-idle=5
spring.datasource.primary.initial-size=5
spring.datasource.primary.validation-query=SELECT 1
spring.datasource.primary.test-on-borrow=false
spring.datasource.primary.test-while-idle=true
spring.datasource.primary.time-between-eviction-runs-millis=18800