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Tag Archives: Spring

Spring Batch – Replacing XML Job Configuration With JavaConfig

spring-interview-questions-answers

I recently assisted a client in getting up and running with a Spring Batch implementation. The team had decided to move forward with a JavaConfig-based configuration for their batch jobs instead of the traditional XML-based configuration. As this is becoming a more common approach to configuring Java applications, I felt it was time to update Keyhole’s Spring Batch series to show you how ...

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A Developers Perspective on Spring vs JavaEE

spring-interview-questions-answers

In Java community Spring vs JavaEE is a never ending debate. In such debates people form two groups consisting of evangelists, architects and hard core fans of one platform and debate endlessly. Those who participate in the debates may be architects who are responsible for platform selection. But what would developers think about this Spring vs JavaEE debate? I am ...

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Learning Spring-Cloud – Infrastructure and Configuration

spring-interview-questions-answers

I got a chance to play with Spring-Cloud to create a sample set of cloud ready microservices and I am very impressed by how Spring-Cloud enables different infrastructure components and services to work together nicely. I am used to creating microservices based on Netflix OSS based stack and typically in a Netflix stack Eureka is considered the hub using which ...

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JavaEE or Spring? Neither! We Call Out For a Fresh Competitor!

spring-interview-questions-answers

If you’ve been following some key Java people on Twitter or reading the “news” on Reddit, you could not have missed the hilarious “bitch fight” (pardon my French) between some Spring and JavaEE evangelists. First, Jürgen Höller’s provocative article: “Happy second birthday, Java EE 7! How is it going in production?” Then, Reza Rahman’s response: “The Ghosts of Java EE ...

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RESTful Error Handling with Spring

spring-interview-questions-answers

This post will illustrate a way in which exception handling can be implemented for RESTful web services in Spring in such a manner that the exception handling concerns are separated from the application logic. Taking advantage of the @ControllerAdvice annotation we are able to create a global helper class for all controllers. By adding methods that we annotate with both ...

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Groovier Spring Boot Integration Testing

spring-interview-questions-answers

Recently I had a chance to use Groovy’s groovy.json.JsonSlurper in a soapUI REST project. The usage scenario in soapUI (in particular, soapUI Open Source) was very simple: in a Groovy assertion, load the content of a response into a variable and than verify it like this: import groovy.json.JsonSlurper; def slurper = new JsonSlurper() def result = slurper.parseText(messageExchange.responseContent) assert result.incidentType == ...

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Akka samples with scala and Spring

I was looking around recently for Akka samples with Spring and found a starter project which appeared to fit the bill well. The project however utilizes Spring-Scala which is an excellent project, but is no longer maintained. So I wanted to update the sample to use core Spring java libraries instead. So here is an attempt on a fork of ...

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Spring Integration Jdbc RowMapper Example

spring-interview-questions-answers

The JDBC inbound channel adapter’s basic function is to execute a SQL query, extract the data and pass the result set encapsulated in the form of a Message onto the local channels. You can read more about this in my example on JDBC Inbound Channel Adapter. The type of the payload is decided by the row-mapping strategy. The default one ...

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Spring lookup-method Example

spring-interview-questions-answers

When a bean has dependency on another bean, we inject the bean using the setter property or through the constructor. The getter method will return us the reference that is been set but suppose you want a new instance of the dependent bean each time you invoke the getter method, then you will probably have to follow a different approach. ...

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