Issue
I want to configure two datasources in my SpringBoot (version 2.4) application.
Below is the application.properties:
spring.datasource2.url=jdbc:postgresql://localhost:5432/db1
spring.datasource2.username=//username
spring.datasource2.password=//pwd
spring.datasource2.initialization-mode=always
spring.datasource2.driver-class-name=org.postgresql.Driver
spring.datasource1.url=jdbc:postgresql://localhost:5432/db2
spring.datasource1.username=//usrename
spring.datasource1.password=//pwd
spring.datasource1.initialization-mode=always
spring.datasource1.driver-class-name=org.postgresql.Driver
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
spring.jpa.hibernate.show-sql=true
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
spring.jpa.hibernate.ddl-auto=none
spring.jpa.properties.hibernate.id.new_generator_mappings=false
logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE
spring.h2.console.enabled=true
spring.datasource.continue-on-error=true
spring.servlet.multipart.max-file-size=50MB
spring.servlet.multipart.max-request-size=50MB
project.http.enable=false
project.https.port=9090
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration
server.os=LINUX
dl.writeTOFile=false
dl.writeTOConsole=true
Below is my pom.xml:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- marked the embedded servlet container as provided -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
<version>2.4.0</version>
</dependency>
When I run the application, I get the following error:
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
When I add one datasource as Spring.datasource and other as Spring.datasource1, application starts up fine but it is looking into the DB configured in Spring.datasource only.
Following is the DB1 Config class:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories( entityManagerFactoryRef = "DB1EntityManagerFactory", transactionManagerRef = "DB1TransactionManager", basePackages = {
"com.datasource1.repository" } )
@EntityScan("com.datasource1.entity" )
public class Db1Config {
@Primary
@Bean
@ConfigurationProperties("spring.datasource")
public DataSourceProperties SourceProperties() {
return new DataSourceProperties();
}
@Primary
@Bean( name = "DB1Datasource" )
@ConfigurationProperties( prefix = "spring.datasource.configuration" )
public DataSource dataSource()
{
return SourceProperties().initializeDataSourceBuilder()
.type(HikariDataSource.class).build();
}
@Primary
@Bean( name = "DB1EntityManagerFactory" )
public LocalContainerEntityManagerFactoryBean barEntityManagerFactory( EntityManagerFactoryBuilder builder,
@Qualifier( "DB1Datasource" ) DataSource dataSource )
{
return builder.dataSource(dataSource).packages("com.datasource1.entity")
.persistenceUnit("db1").build();
}
@Primary
@Bean( name = "DB1TransactionManager" )
public PlatformTransactionManager barTransactionManager(
@Qualifier( "DB1EntityManagerFactory" ) EntityManagerFactory barEntityManagerFactory )
{
return new JpaTransactionManager(barEntityManagerFactory);
}
}
Following is the DB2Config:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories( entityManagerFactoryRef = "DB2EntityManagerFactory", transactionManagerRef = "DB2TransactionManager", basePackages = {
"com.DB2.repository" } )
@EntityScan( "com.DB2.entity" )
public class Db2Config {
@Bean
@ConfigurationProperties("spring.datasource2")
public DataSourceProperties DB2SourceProperties() {
return new DataSourceProperties();
}
@Bean( name = "DB2Datasource" )
@ConfigurationProperties( prefix = "spring.datasource2.configuration" )
public DataSource dataSource()
{
return DB2SourceProperties().initializeDataSourceBuilder()
.type(HikariDataSource.class).build();
}
@Bean( name = "DB2EntityManagerFactory" )
public LocalContainerEntityManagerFactoryBean barEntityManagerFactory( EntityManagerFactoryBuilder builder,
@Qualifier( "DB2Datasource" ) DataSource dataSource )
{
return builder.dataSource(dataSource).packages("com.DB2.entity")
.persistenceUnit("db2").build();
}
@Bean( name = "DB2TransactionManager" )
public PlatformTransactionManager barTransactionManager(
@Qualifier( "DB2EntityManagerFactory" ) EntityManagerFactory barEntityManagerFactory )
{
return new JpaTransactionManager(barEntityManagerFactory);
}
}
How do I resolve this issue?
Solution
You should change
spring.datasource1.url=jdbc:postgresql://localhost:5432/db2
to
spring.datasource1.jdbc-url=jdbc:postgresql://localhost:5432/db2
Not sure why this is the case and the docs don't say so, but I had this issue and this did the trick for me
Edit: As @M. Deinum mentioned in his comment: These
@ConfigurationProperties("spring.datasource")
(...)
@ConfigurationProperties( prefix = "spring.datasource.configuration" )
should be changed to
@ConfigurationProperties("spring.datasource1")
(...)
@ConfigurationProperties( prefix = "spring.datasource1.configuration" )
Answered By - Amir Schnell
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)
