I am trying to add the jackson annotation at the application level via application.yml file. But when I run the application, the jackson annotation is ignored and the response has the null attributes as well. Cn someone help me here? I have added the below line in my application.yml
spring.jackson:
default-property-inclusion: NON_NULL
even after this I am seeing the response with null values.
Am I missing something or is there an issue with the version I m using? I am currently using jackson annotation version - 2.9.0
Property spring.jackson.default-property-inclusion: NON_NULL works with latest spring-boot version 2.5.0.
For older versions, where the property doesn't work, you can use #JsonInclude(Include.NON_NULL) annotation at class or field level.
Please note that field level annotation overrides the class level annotation, and class level annotation overrides the application level property.
Related
From documentation Spring Boot uses ConcurrentMapCacheManager as CacheManager implementation by default if we don't define own CacheManager bean definition. But I keep getting 'No qualifying bean of type 'org.springframework.cache.CacheManager' available' error eventhough spring-boot-starter-cache and #EnableCaching is there.
Any help would be greatly appreciated.
Best regards,
SetNug
Short answer... NO.
I suspect you are having problems while (integration) testing? If so, then you probably need to declare the appropriate "test slice annotation", that is #AutoConfigureCache; see Javadoc.
To demonstrate, I created a simple example with a test class contained in this module of my SO repository. You must declare the #AutoConfigureCache annotation in configuration (see here) even if your test is a #SpringBootTest.
As Spring Boot's documentation describes, all of Spring Boot's auto-configuration (which is quite extensive) can be a bit much for testing. As such, none of Spring Boot's auto-configuration is enabled by default. Therefore, you must explicitly enable what you want, or, alternatively, you can declare that you want Spring Boot's entire auto-configuration enabled, by replacing the #AutoConfigureCache annotation declaration with Spring Boot's #EnableAutoConfiguration annotation instead.
You are correct that Spring Boot will auto-configure a "Simple" caching provider (i.e. the ConcurrentMapCacheManager, or in other words, a Spring CacheManager implementation backed by a java.util.concurent.ConcurrentHashMap; see here) when no other cache provider implementation (e.g Redis) is present or explicitly declared.
However, Spring Boot auto-configuration is only in effect when your Spring Boot application is an "application", which I have shown here.
Of course, it is also true that if your #SpringBootApplication annotated class is found (in the classpath component-scan) by your test as described, then it will also enable caching without any explicit annotations, such as, no need to explicitly declare the #AutoConfigureCache test slice annotation, even.
NOTE: In my example, I deliberately did not package the source according to the suggested structure. So, if I were to replace the #AutoConfigureCache annotation declaration in my test configuration with #Import(SpringBootDefaultCachingApplication.class) and comment out this assertion from the application class, then the test would also pass. Using the #Import annotation in this way works similarly as if the test class and application class were in the same package, or the application class were in a parent package relative to the test class.
1 last tip... you can always enable Spring Boot debugging (see Baeldung's blog) to see what auto-configuration is applied while running your application, or even while running tests.
Spring Boot sets "spring.jackson.deserialization.fail-on-unknown-properties=false" by default. I have a library that works fine in Spring Boot, but when used in an existing SpringMVC app it throws "Unrecognized field, not marked as ignorable". Is there some comparable global setting for SpringMVC I can set in the config or otherwise?
edit: spring webmvc version 3.2.15.RELEASE
You can annotate the mapped classes with
#JsonIgnoreProperties(ignoreUnknown = true)
or create add the following configuration to the ObjectMapper as follows:
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
You can follow two method that I have mention in this answer. If I'm not wrong either one will work for you. (But method 1 won't work if your clinet class does not have a no-arg default constructor)
I am developing a sample application that Spring Batch with Spring Boot. My requirement is:
Have my own implementation of BasicBatchConfigurer so that I can configure AsyncTaskExecutor and my own dataSource as I am using SAP HANA as DB for which databaseType is not supported.
I want to use #EnableBatchProcessing(modular=true) so that I can register multiple jobs and launch them with separate Child Context
I have added all the required configurations. Without setting modular=true the Job is Launched and works as expected. It initializes the beans defined from my implementation of BasicBatchConfigurer.
However, once modular=true is set, the beans from my implementation are not initialized.
The code is hosted here: https://github.com/VKJEY/spring-framework-evaluation
I debugged further into the issue:
Looks like, When we set modular=true, BatchConfigurationSelector uses ModularBatchConfiguration
In ModularBatchConfiguration, there's a field Collection<BatchConfigurer> configurers. This has been annotated as #autowired.
I assume that this field is auto initialized if I provided a implementation
of BatchConfigurer as it has been mentioned in the comments of ModularBatchConfiguration class as well
However, While debugging I realized that the above field is still null beacuse of which, It loads DefaultBatchConfigurer and follows the default flow.
My question is why is that field configurers not being initialized in ModularBatchConfiguration? Am I missing something?
I am using Spring boot 2.1.2.
My question is why is that field configurers not being initialized in ModularBatchConfiguration? Am I missing something?
You are hitting a lifecycle issue between Spring Boot custom auto-configuration that you defined in the META-INF/spring.factories file and Spring Batch configuration.
I debugged your code and here is how to fix the issue:
remove org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.example.job.data.persistence.config.AsyncBatchConfigurer
from META-INF/spring.factories file. This is not needed as Spring Batch
will detect the AsyncBatchConfigurer when it is declared as a bean.
You can even remove this spring.factories file
remove #ConditionalOnMissingBean(BatchConfigurer.class) from AsyncBatchConfigurer:
Since you declared this class as a #Configuration class, it will also be defined as a bean of type BatchConfigurer and will be detected by ModularBatchConfiguration
With these two changes, the field configurers in ModularBatchConfiguration is correctly autowired with your AsyncBatchConfigurer.
As a side note, you don't need the AsyncBatchConfigurer#configurers method as Spring will do the work of injecting all BatchConfigurer beans in ModularBatchConfiguration.
Hope this helps.
The EntityScan class has removed from SpringBoot 1.5.0-SNAPSHOT,
When i change to 1.3.0-SNAPSHOT version, EntityScan exist.
i must add another dependancy to use EntityScan with SpringBoot 1.5.0-SNAPSHOT ?
https://github.com/spring-projects/spring-boot/issues/8231
Please read the release notes: https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-1.4-Release-Notes#entityscan :
The #org.springframework.boot.orm.jpa.EntityScan annotation has been
deprecated and should be replaced with
#org.springframework.boot.autoconfigure.domain.EntityScan or
explicit configuration.
As of spring 4.1, spring controllers accept return value that can be of type ListenableFuture. is returning a ListenableFuture return value sufficient in making the controller async? Or does it also need #enableAsync annotation somewhere in spring configuration file or/and anything else? I am following this tutorial
I found out that what i was looking for is not #enableAsync but a servlet 3.0 property called async-supported. According to this link, spring-boot defaults async-supported to true.
Hence, there is no need of any further configuration to do if you're using spring-boot.