A Webapp Makeover with Spring 4 and Spring Boot
A typical Maven and Spring web application has a fair amount of XML and verbosity to it. Add in Jersey and Spring Security and you can have hundreds of lines of XML before you even start to write your Java code. As part of a recent project, I was tasked with upgrading a webapp like this to use Spring 4 and Spring Boot. I also figured I'd try to minimize the XML.
This is my story on how I upgraded to Spring 4, Jersey 2, Java 8 and Spring Boot 0.5.0 M6.
When I started, the app was using Spring 3.2.5, Spring Security 3.1.4 and Jersey 1.18. The pom.xml had four Jersey dependencies, three Spring dependencies and three Spring Security dependencies, along with a number of exclusions for "jersey-spring".
Upgrading to Spring 4
Upgrading to Spring 4 was easy, I changed the version property to 4.0.0.RC2 and added the new
Spring bill of materials
to my pom.xml. I also add the Spring milestone repo since Spring 4 won't be released to Maven central
until tomorrow.
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-framework-bom</artifactId>
<version>${spring.framework.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<repositories>
<repository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
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