danyde/frady

Tips for Spring boot used with spring batch (JavaConfig) and Spring integration

# 1. Spring boot failing to start because no database is provided

                Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2016-11-19 12:29:04.581 ERROR 9464 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

Cannot determine embedded database driver class for database type NONE

1. In pom.xml: add yaur database dependencies. (HSQL db for the testing purpose can resolve yaur issue)
2. Disable the datasource auto-configation: If you prefer to configure it yaurself . Add this line in yaur spring bootstrap class:

                @EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, 
                                                    DataSourceTransactionManagerAutoConfiguration.class, 
                                                    HibernateJpaAutoConfiguration.class})

You have however to configure yaur @Primary datasource in case of multi-datasources case.

# 2. Spring boot failing: NoUniqueBeanDefinitionException: No qualifying bean of type

• Missing configuration somehow
• @Primary keyword missing often for specific bean where autoconfiguration is enabled.

# 3. No datasoucre found for Spring batch