报错如下：
. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.1.0.RELEASE) 2022-07-01 12:03:37 UTC ERROR com.zaxxer.hikari.pool.HikariPool 574 throwPoolInitializationException - HikariPool-1 - Exception during pool initialization.[] java.sql.SQLException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489) ~[ojdbc6-11.2.0.4.0-atlassian-hosted.jar:11.2.0.4.0] at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553) ~[ojdbc6-11.2.0.4.0-atlassian-hosted.jar:11.2.0.4.0] at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254) ~[ojdbc6-11.2.0.4.0-atlassian-hosted.jar:11.2.0.4.0] at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) ~[ojdbc6-11.2.0.4.0-atlassian-hosted.jar:11.2.0.4.0] at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528) ~[ojdbc6-11.2.0.4.0-atlassian-hosted.jar:11.2.0.4.0] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.2.0.jar:?] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.2.0.jar:?] at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) ~[spring-jdbc-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) ~[spring-jdbc-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) ~[spring-jdbc-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) ~[spring-jdbc-5.1.2.RELEASE.jar:5.1.2.RELEASE] at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:123) ~[spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.jdbc.AbstractDataSourceInitializer.isEnabled(AbstractDataSourceInitializer.java:74) ~[spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.boot.jdbc.AbstractDataSourceInitializer.initialize(AbstractDataSourceInitializer.java:54) ~[spring-boot-2.1.0.RELEASE.jar:2.1.0.RELEASE]
原因：服务名写错了。修改服务名后就不报错了。