Why Quartz? motivation Spring comes already with an own timer and this is fine if we have very simple requirements and we don’t really care about state or on which pod the timer is actually running. To be more precise the timer/ job is running in each of our spring containers independently. Lets be honest,…
Problem As soon we have timers in our project they may cause issues in our integration tests, as they start running in the most undesirable situation. E.g. during the trigger a specific function which would usually be triggered by the timer. Solution In the easiest scenario if it is a in memory Spring test we…
Problem Some services don’t have an UI and the OpenAPI/ Swagger UI should be used as default UI of the service. As so the root should be redirected directly to the SwaggerUI. Solution Just add a WebMvc redirect. Swagger Open API dependencies Spring Boot 2.x Ensure you check the current version: Spring Boot 3.x Ensure…
Problem By default the Spring RestTempalte and the swagger OpenAPI client does an SSL check. This is usually not required on the test system, as so the goal is to remove the SSL check from the Spring Boot Rest Template. RestTemplate Apache HTTP Client pom.xml Swagger OpenAPI Client Furthermore sometimes it is required to remove…
Problem We want to combine Spring and Angular use the Angular developing features but also be able to use the Spring IDE, in the end, everything should be build using maven and nicely packed into a JAR.Let’s get started. Overview Less text more code get me to the source. Multi-Module project It may make sense…
The Problem Recently using MongoDB and Spring Data I encountered an interesting issue. Saving an Entity which was loaded by @DBRef(lazy = true) wasn’t possible together with the activated ValidatingMongoEventListener. Each time the following error occurred: javax.validation.ConstraintViolationException at org.springframework.data.mongodb.core.mapping.event.ValidatingMongoEventListener.onBeforeSave(ValidatingMongoEventListener.java:65) at org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener.onBeforeSave(AbstractMongoEventListener.java:144) at org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener.onApplicationEvent(AbstractMongoEventListener.java:90) at org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener.onApplicationEvent(AbstractMongoEventListener.java:33) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:163) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:136) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:381) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:335) at org.springframework.data.mongodb.core.MongoTemplate.maybeEmitEvent(MongoTemplate.java:1633) at org.springframework.data.mongodb.core.MongoTemplate.doSave(MongoTemplate.java:986) at org.springframework.data.mongodb.core.MongoTemplate.save(MongoTemplate.java:933)…
Yaml Configuration Important to notice hibernate.dialect must be set driver-class-name must be set it needs to be the MySQL5InnoDBDialect or MySQL57InnoDBDialect instead of the MySQLInnoDBDialect Dependencies in Maven
Sometimes it is useful haven the Web Scopes in Unit Tests. Usually Spring just show this very useful error in the Unit Test: Caused by: java.lang.IllegalStateException: No Scope registered for scope ’session‘ at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:334) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1120) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533) … 28 common frames omitted You can easily have all needed…
I had recently a very interesting problem using Spring Boot and the automagic concerning the configuration. The Problem org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‚demo.MyApplicationTests‘: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.lang.String demo.MyApplicationTests.url; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder ‚my.url‘ in string value „${my.url}“ at…
