Java “如何修复”；com.mysql.cj.jdbc.exceptions.CommunicationsException“；错误

我将我的应用程序移动到了我的生产服务器，我收到了此错误。我想这可能与我的亚马逊RDS配置有关，但我不确定。我已将其配置为与我的开发应用程序一起正常工作。唯一不同的是，我将其移动到了Windows Server 2012 R2

我尝试过多次更换mysqlconnector jar。我包括了最新的罐子。我还将mysqlconnector依赖项包含在pom.xml中

以下是我的application.prod.properties：

spring.profiles.active=prod
spring.datasource.url=jdbc:mysql://databaselink:port/dbname?useSSL=false
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.database-platform:org.hibernate.dialect.MySQL5Dialect
spring.mvc.view.prefix=/WEB-INF/views/
spring.mvc.view.suffix=.jsp
spring.jpa.hibernate.ddl-auto: update
spring.jpa.show-sql=true
aws.sns.topic.volvoservice.ARN=xxxxx
aws.temporary.credentials.validity.duration=7200
aws.access.key.id = 
aws.access.key.secret = 
aws.region=us-east-1
server.port=9080
#Expose HTTP REST ENDPOINTS
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=when-authorized
management.endpoint.health.roles=ADMIN

我希望能够在生产服务器上运行我的应用程序。任何帮助都将不胜感激。谢谢

以下是一些错误：

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
    at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:117) ~[HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:123) ~[HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:365) ~[HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) [HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) [HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-2.7.9.jar!/:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-2.7.9.jar!/:na]
    at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) [spring-jdbc-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:319) [spring-jdbc-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:356) [spring-jdbc-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.DatabaseLookup.getDatabase(DatabaseLookup.java:72) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.JpaProperties.determineDatabase(JpaProperties.java:166) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.jpaVendorAdapter(JpaBaseConfiguration.java:111) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$be7f834.CGLIB$jpaVendorAdapter$6(<generated>) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$be7f834$$FastClassBySpringCGLIB$$25526138.invoke(<generated>) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:365) [spring-context-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$be7f834.jpaVendorAdapter(<generated>) [spring-boot-autoconfigure-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_191]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_191]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_191]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:474) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:474) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089) ~[spring-context-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859) ~[spring-context-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.9.RELEASE.jar!/:5.0.9.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) ~[spring-boot-2.0.5.RELEASE.jar!/:2.0.5.RELEASE]
    at com.principleauto.rfid.RfidRestApiApplication.main(RfidRestApiApplication.java:12) ~[classes!/:1.0]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_191]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_191]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_191]
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) ~[com.principleauto-1.0.jar:1.0]
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) ~[com.principleauto-1.0.jar:1.0]
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) ~[com.principleauto-1.0.jar:1.0]
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) ~[com.principleauto-1.0.jar:1.0]
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_191]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_191]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_191]
    at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[na:1.8.0_191]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:152) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:955) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    ... 84 common frames omitted
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_191]
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) ~[na:1.8.0_191]
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[na:1.8.0_191]
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[na:1.8.0_191]
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[na:1.8.0_191]
    at java.net.PlainSocketImpl.connect(Unknown Source) ~[na:1.8.0_191]
    at java.net.SocksSocketImpl.connect(Unknown Source) ~[na:1.8.0_191]
    at java.net.Socket.connect(Unknown Source) ~[na:1.8.0_191]
    at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65) ~[mysql-connector-java-8.0.13.jar!/:8.0.13]
    ... 87 common frames omitted

2019-01-11 09:13:15.946  WARN 4776 --- [main] o.s.b.a.orm.jpa.DatabaseLookup           : Unable to determine jdbc url from datasource

com.mysql.cj.jdbc.exceptions.CommunicationsException:通信链路故障
成功发送到服务器的最后一个数据包是0毫秒前的。驱动程序尚未从服务器收到任何数据包。
在com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException（SQLError.java:174）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException（SQLExceptionsMapping.java:64）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.mysql.cj.jdbc.ConnectionImpl.createNewIO（ConnectionImpl.java:835）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.mysql.cj.jdbc.ConnectionImpl.（ConnectionImpl.java:455）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.mysql.cj.jdbc.ConnectionImpl.getInstance（ConnectionImpl.java:240）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.mysql.cj.jdbc.NonRegisteringDriver.connect（NonRegisteringDriver.java:207）~[mysql-connector-java-8.0.13.jar！/：8.0.13]
在com.zaxxer.hikari.util.DriverDataSource.getConnection（DriverDataSource.java:117）~[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.util.DriverDataSource.getConnection（DriverDataSource.java:123）~[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.pool.PoolBase.newConnection（PoolBase.java:365）~[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.pool.PoolBase.newPoolEntry（PoolBase.java:194）~[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.pool.HikariPool.createPoolEntry（HikariPool.java:460）[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.pool.HikariPool.checkFailFast（HikariPool.java:534）[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.pool.HikariPool.（HikariPool.java:115）[HikariCP-2.7.9.jar！/：na]
在com.zaxxer.hikari.HikariDataSource.getConnection（HikariDataSource.java:112）[HikariCP-2.7.9.jar！/：na]
在org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection（DataSourceUtils.java:151）[spring-jdbc-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection（DataSourceUtils.java:115）[spring-jdbc-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
在org.springframework.jdbc.datasource.DataSourceUtils.getConnection（DataSourceUtils.java:78）[spring-jdbc-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData（JdbcUtils.java:319）[spring-jdbc-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
在org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData（JdbcUtils.java:356）[spring-jdbc-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
在org.springframework.boot.autoconfigure.orm.jpa.DatabaseLookup.getDatabase（DatabaseLookup.java:72）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
位于org.springframework.boot.autoconfigure.orm.jpa.JpaProperties.determineDatabase（JpaProperties.java:166）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
在org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.jpaVendorAdapter（JpaBaseConfiguration.java:111）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
在org.springframework.boot.autoconfigure.orm.jpa.hibernatejpac配置$$EnhancerBySpringCGLIB$$be7f834.CGLIB$jpaVendorAdapter$6（）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
在org.springframework.boot.autoconfigure.orm.jpa.hibernatejpac配置$$EnhancerBySpringCGLIB$$be7f834$$FastClassBySpringCGLIB$$25526138.invoke（）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
在org.springframework.cglib.proxy.MethodProxy.invokeSuper（MethodProxy.java:228）[spring-core-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
在org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept（ConfigurationClassEnhancer.java:365）[spring-context-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
在org.springframework.boot.autoconfigure.orm.jpa.hibernatejpac配置$$EnhancerBySpringCGLIB$$be7f834.jpaVendorAdapter（）[spring-boot-autoconfigure-2.0.5.RELEASE.jar！/：2.0.5.RELEASE]
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）~[na:1.8.0_191]
在sun.reflect.NativeMethodAccessorImpl.invoke（未知源）~[na:1.8.0_191]
在sun.reflect.DelegatingMethodAccessorImpl.invoke（未知源）~[na:1.8.0_191]
在java.lang.reflect.Method.invoke（未知源代码）~[na:1.8.0_191]
位于org.springframework.beans.factory.support.simpleinstationstrategy.instantiate（simpleinstationstrategy.java:154）[spring-beans-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.beans.factory.support.ConstructorResolver.InstanceUsingFactoryMethod（ConstructorResolver.java:582）[spring-beans-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.InstanceUsingFactoryMethod（AbstractAutowireCapableBeanFactory.java:1247）[spring-beans-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:1096）[spring-beans-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:535）[spring-beans-5.0.9.RELEASE.jar！/：5.0.9.RELEASE]
A.