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Tag Archives: Spring

Spring Boot – Configure Log Level in runtime using actuator endpoint

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As of Spring Boot 1.5 a new loggers actuator endpoint allows viewing and changing application logging levels in runtime. Add spring-boot-actuator to your project <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> Disable security for loggers or for all endpoints Set either management.security.enabled to false or endpoints.loggers.sensitive to false to disable security. Note that the latter changes only loggers endpoint. Get all loggers details ...

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Spring Data with JPA and @NamedQueries

spring-interview-questions-answers

If you use Spring Data and @NamedQuery annotations at your JPA entity you can easily use them in a more convenient way using the spring data repository. On a previous blog we created a spring data project using spring boot and docker. We will use the pretty same project and enhance our repository’s functionality. We will implement a named query ...

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Spring Tutorial: Creating a Hello World REST API Using Spring Framework and Spring Boot

spring-interview-questions-answers

Spring Framework was created as a result of disappointment of Java community with earlier versions of Enterprise Java. Since then it has grown into huge ecosystem that allows one to solve every problem in building a Web-based Java application and more. Spring is often criticized because it used to rely on XML for configuration purposes. As a response to that ...

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Push Spring Boot Docker images on ECR

On a previous blog we integrated a spring boot application with EC2. It is one of the most raw forms of deployment that you can have on Amazon Web Services. On this tutorial we will create a docker image with our application which will be stored to the Amazon EC2 container registry. You need to have the aws cli tool ...

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Spring Boot – The Right Boot for you!

spring-interview-questions-answers

Need a little spring in your step? Tired of all those heavy web servers and deploying WAR files? Well you’re in luck. Spring Boot takes an opinionated view of building production-ready Spring applications. Spring Boot favors convention over configuration and is designed to get you up and running as quickly as possible. In this blog, I will walk you through ...

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Spring Data support for Cassandra 3

One of the items that caught my eye from the announcement of the new Spring Data release train named Ingalls was that the Spring Data Cassandra finally supports Cassandra 3+. So I revisited one of my old samples and tried it with a newer version of Cassandra. Installing Cassandra The first step is to install a local version of Cassandra and I ...

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Setting TTL for @Cacheable – Spring

spring-interview-questions-answers

Today I was asked to set the expiry time of cache for some of the keys our application is using, so I quickly started looking for all of the options provided by Spring @Cacheable notation to set up the expiry time or time to live. Since Spring does not provide any configurable option to achieve it, I build one implementation ...

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Spring-Boot and Cache Abstraction with HazelCast

spring-interview-questions-answers

Previously we got started with Spring Cache abstraction using the default Cache Manager that spring provides. Although this approach might suit our needs for simple applications, in case of complex problems we need to use different tools with more capabilities. Hazelcast is one of them. Hazelcast is hands down a great caching tool when it comes to a JVM based ...

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