Failed to auto-configure a DataSource: 'spring

Question

I have created a basic spring boot application from SPRING INITIALIZR with the Web, MongoDB and JPA dependencies.

When I try to run the spring boot application I am getting the following exception:

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-03-25 16:27:02.807 ERROR 16256 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:
Failed to auto-configure a DataSource: 'spring.datasource.url' is not specified and no embedded datasource could be auto-configured.
Reason: Failed to determine a suitable driver class

Action:

Consider the following situation:
If you want an embedded database like H2, HSQL or Derby, please add it in the Classpath.
If you have database settings to be loaded from a particular profile you may need to activate it since no profiles were currently active.

In application.properties file I am having the following configuration:

server.port=8081
spring.data.mongodb.database=TestDatabase
spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017

Versions which I use: Spring : 5.0.4, MongoDB : 3.6, Spring Boot: 2.0

Answer 1

Add the line below in application.properties file under resource folder and restart your application.

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

Answer 2

In gradle build i simply:

compile('org.springframework.boot:spring-boot-starter-data-jpa') compile('org.springframework.boot:spring-boot-starter-security') compile('org.springframework.boot:spring-boot-starter-web') compile('org.springframework.boot:spring-boot-devtools')

removed

**`compile('org.springframework.boot:spring-boot-starter-data-jpa')`**

and it worked for me.