java.sql.SQLException: The Network Adapter could not establish the connection

2019-05-06 14:52:00.984  INFO 2728 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2019-05-06 14:52:01.050  INFO 2728 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2019-05-06 14:52:01.256  INFO 2728 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2019-05-06 14:52:01.258  WARN 2728 --- [           main] com.zaxxer.hikari.util.DriverDataSource  : Registered driver with driverClassName=oracle.jdbc.driver.OracleDriver was not found, trying direct instantiation.
2019-05-06 14:52:23.346 ERROR 2728 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

java.sql.SQLException: The Network Adapter could not establish the connection
    at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:480) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:413) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:508) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:203) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    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.(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 com.zaxxer.hikari.HikariDataSource$$FastClassBySpringCGLIB$$eeb1ae86.invoke() [HikariCP-2.7.9.jar:na]
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:136) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:124) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) [spring-aop-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at com.zaxxer.hikari.HikariDataSource$$EnhancerBySpringCGLIB$$44b8e661.getConnection() [HikariCP-2.7.9.jar:na]
    at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:861) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:888) [hibernate-core-5.2.17.Final.jar:5.2.17.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) [spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) [spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) [spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) [spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) [spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at com.jet.ecss.TestManageApplication.main(TestManageApplication.java:16) ~[classes/:na]
Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection
    at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:328) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:421) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:630) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.net.ns.NSProtocol.connect(NSProtocol.java:206) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:966) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:292) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    ... 60 common frames omitted
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_171]
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_171]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_171]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_171]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_171]
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_171]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_171]
    at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_171]
    at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:120) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.net.nt.ConnOption.connect(ConnOption.java:126) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:306) ~[ojdbc6-11.1.0.7.0.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
    ... 65 common frames omitted

 

问题：java.sql.SQLException: The Network Adapter could not establish the connection（java.sql.sqlException:网络适配器无法建立连接）

原因：没有连接上数据库。因我访问的是远程数据库。没有开启（:远程连接渠道）。连接不上远程的数据库。导致启动springboot服务失败，出现连接数据库失败。

解决办法：连接。检查数据库连接。确保数据库连接正常

大家遇到启动服务出现，可以根据最先报错的一行错误信息（如文章标红处oracle.jdbc.driver.OracleDriver was not found, trying direct instantiation）。有针对性的查找问题。有上面的错误信息时，仔细检查服务的数据库连接是否正确。