Obviously, an error is reported here, saying that Sid cannot be obtained. Obviously, the path is wrong. Check whether the path is completely written?

The error is as follows

java.sql.SQLException: Listener refused the connection with the following error:
ORA-12504, TNS:listener was not given the SID in CONNECT_DATA
 
	at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:480) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:413) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:508) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510) ~[ojdbc-11.2.0.3.jar:Oracle JDBC Driver version - "11.1.0.7.0-Production"]
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) [HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) [HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-4.0.3.jar:na]
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) [spring-jdbc-5.3.8.jar:5.3.8]
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) [spring-jdbc-5.3.8.jar:5.3.8]
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) [spring-jdbc-5.3.8.jar:5.3.8]
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:330) [spring-jdbc-5.3.8.jar:5.3.8]
	at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:184) [spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer.isEmbeddedDatabase(DataSourceScriptDatabaseInitializer.java:64) [spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.isEnabled(AbstractScriptDatabaseInitializer.java:87) [spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.initializeDatabase(AbstractScriptDatabaseInitializer.java:74) [spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.afterPropertiesSet(AbstractScriptDatabaseInitializer.java:65) [spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1845) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) [spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.8.jar:5.3.8]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.8.jar:5.3.8]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.8.jar:5.3.8]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.1.jar:2.5.1]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) ~[spring-boot-2.5.1.jar:2.5.1]

solve

jdbc:oracle:thin:@xxx:1521:orcl/xe