spring boot: can't initialize a postgresql datasource - spring-boot

Question

I have the following bean configured.
#Bean
#Primary
#ConfigurationProperties(prefix="datasource.etlTarget")
public DataSource datasourceTest() {
System.out.println("************");
System.out.println("************");
return DataSourceBuilder.create().build();
}
Then error log is:
************
************
2014-12-14 21:12:35.718 WARN 21758 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.util.Collection org.springframework.batch.core.configuration.annotation.AbstractBatchConfiguration.dataSources; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'datasourceTest' defined in class path resource [com/testcom/etc/ETLJobRepository.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'datasourceTest' threw exception; nested exception is java.lang.IllegalStateException: No supported DataSource type found
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
Key error message is
nested exception is java.lang.IllegalStateException: No supported DataSource type found
The gradle setting is
dependencies {
compile "org.springframework.boot:spring-boot-starter-batch:1.2.0.RELEASE"
compile "org.springframework:spring-jdbc:4.1.3.RELEASE"
compile 'org.postgresql:postgresql:9.3-1102-jdbc41'
testCompile group: 'junit', name: 'junit', version: '4.11'
}
I tried hard to figure it out why it error out, but don't find out the root cause
The property is
datasource.etlTarget.url=jdbc:postgresql://localhost/example
datasource.etlTarget.driverClassNname=org.postgresql.Driver
datasource.etlTarget.username=postgres
datasource.etlTarget.password=test

Answer 1

You made a typo in your configuration:
datasource.etlTarget.driverClassNname=org.postgresql.Driver
Should be:
datasource.etlTarget.driverClassName=org.postgresql.Driver
(i.e. driverClassName instead of driverClassNname)