app.jar is the archive produced by the bootJar task. This is a Spring Boot fat jar that contains all of the module’s dependencies as well as its classes and resources. It can be run using java -jar. app-plain.jar is the archive produced by the jar task. This is a plain or standard jar file that … Read more
Yes, JdbcTemplate is not a substitute for transaction management. You still benefit from database transactions, so userService.updateUser will operate in a database transaction, but if accountService.updateXXX fails, userService.updateUser will not rollback. If you don’t want to use AOP, you can use TransactionTemplate instead. See programmatic transaction management in the Spring Reference Documentation. One pattern I’ve … Read more
I resolved the error by doing mvn clean install Also add this to your pom <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> <configuration> <source>1.8</source> <target>1.8</target> <annotationProcessorPaths> <path> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </path> <path> <groupId>org.mapstruct</groupId> <artifactId>mapstruct-processor</artifactId> <version>${org.mapstruct.version}</version> </path> </annotationProcessorPaths> <compilerArgs> <compilerArg> -Amapstruct.defaultComponentModel=spring </compilerArg> </compilerArgs> </configuration> </plugin>
You should use TaskScheduler for your purpose @Bean public ThreadPoolTaskScheduler threadPoolTaskScheduler() { ThreadPoolTaskScheduler threadPoolTaskScheduler = new ThreadPoolTaskScheduler(); threadPoolTaskScheduler.setPoolSize(THREADS_COUNT); return threadPoolTaskScheduler; } Where THREADS_COUNT – total count of tasks which should be executed in parallel. If I understand you correctly, you have only 2 jobs, so you need 2 threads
In short Spring Boot reduces the need to write a lot of configuration and boilerplate code. It has an opinionated view on Spring Platform and third-party libraries so you can get started with minimum effort. Easy to create standalone applications with embedded Tomcat/Jetty/Undertow. Provides metrics, health checks, and externalized configuration. You can read more here … Read more
This is defined behaviour. From the docs: Any RuntimeException triggers rollback, and any checked Exception does not. This is common behaviour across all Spring transaction APIs. By default, if a RuntimeException is thrown from within the transactional code, the transaction will be rolled back. If a checked exception (i.e. not a RuntimeException) is thrown, then … Read more
session.refresh(entity) or entityManager.refresh(entity) (if you use JPA) will give you fresh data from DB.
I too have used GCP to host a Spring-Boot service. I followed this article almost religiously provided by Spring Boot(https://www.baeldung.com/spring-boot-google-app-engine) as well as this github read me that includes extra information about preparing your service to be hosted onto GCP (https://github.com/GoogleCloudPlatform/getting-started-java/tree/master/appengine-standard-java8/springboot-appengine-standard) The main idea is that you will need to create a CLOUD SQL instance … Read more
yes, build it by yourself @Target(ElementType.FIELD) @Constraint(validatedBy={}) @Retention(RUNTIME) @Pattern(regexp=”^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$”) public @interface UUID { String message() default “{invalid.uuid}”; Class<?>[] groups() default {}; Class<? extends Payload>[] payload() default {}; }
This is expected as @ConfigurationProperties does not make a class a Spring Component. Mark the class with @Component and it should work. Note that a class can only be injected if it is a Component. Edit: From Spring 2.2+ (Reference) @ConfigurationProperties scanning Classes annotated with @ConfigurationProperties can now be found via classpath scanning as an … Read more