Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Invalid Oracle URL specified - spring

Question

I am getting this error when running my spring boot application. It is a CRUD API that I am trying to connect to my table data in SQL developer. I would really appreciate some help.
Application Properties
spring.datasource.url = jdbc:oracle:DIP:#localhost:1521:orcl
spring.datasource.username = DIP
spring.datasource.password = DIP
spring.datasource.driver-class-name = oracle.jdbc.driver.OracleDriver
server.port = 8080
Code That Generated Exception
private EmployeeDAO dao;
#BeforeEach
void setUp() throws Exception {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setUrl("jdbc:oracle:DIP:#localhost:1521:orcl");
dataSource.setUsername("DIP");
dataSource.setPassword("DIP");
dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
dao = new EmployeeDAO(new JdbcTemplate(dataSource));
}
Oracle Driver System Path Pom.xml
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<version>2.3.0</version>
<scope>system</scope>
<systemPath>C:/ojdbc8.jar</systemPath>
</dependency>

Answer 1

The connection URL looks odd to me.
The part of the connection URL after jdbc:oracle: specifies which type of Oracle JDBC driver to use, as there's more than one of them. The only possible values this can take are thin, oci (or oci8?) and kprb (according to the Oracle JDBC driver documentation). In your code, you've set this to DIP, which appears to also be the username you are using.
I've never had any need to use kprb (in fact I didn't even know about it until today), and I haven't used oci in years. thin is the type of driver I use most often and would be the type of driver I would recommend you try to use.
Try replacing DIP in your connection URL with thin, i.e. jdbc:oracle:thin:#localhost:1521:orcl.
Note that this URL appears twice in your code, once in your properties file and once in what appears to be a test class. You will presumably need to change it in both.