Hello World App with Spring Framework 4 & Maven 3 - Part I - 2020

Eclipse:

Maven 3:

$ mvn -v
Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.7.0_65, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.13.0-35-generic", arch: "amd64", family: "unix"

Maven project archetype in Eclipse will create a layout required for our web project:

File -> New -> Other... -> Maven -> Maven Project:

Pick the maven-archetype-webapp:

Set GroupId Artifact Id as below:

Click on "Finish" to finish Maven project setup, and the project looks like this:

We now need to add the spring framework libraries as dependencies in Maven (pom.xml). We'll also define a maven variable to hold the Spring framework version.

pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>
  <groupId>com.bogotobogo</groupId>
  <artifactId>spring4-helloWorld</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>Spring4HelloWorldMavenWebapp</name>
  <url>http://maven.apache.org</url>
  <properties>
    <spring.version>4.0.1.RELEASE</spring.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <!-- Spring dependencies -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
 
    <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-web</artifactId>
       <version>${spring.version}</version>
    </dependency>
 
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
 
  </dependencies>
  <build>
    <finalName>Spring4HelloWorld</finalName>
  </build>
</project>

After updating the pom.xml, We can see the Spring libraries have been added to Maven dependencies: