Apache Maven web app
May 26, 2021 Maven
Table of contents
Maven - Web app
This tutorial will show you how to use the Maven version control system to manage a web-based project. Here you'll learn how to create/build/deploy and run a web application:
Create a web app
To build a simple Java web app, we can use the maven-archetype-webapp plug-in. First, let's open the command console, go to the C:?MVN directory, and execute the following mvn command.
C:\MVN>mvn archetype:generate
-DgroupId=com.companyname.automobile
-DartifactId=trucks
-DarchetypeArtifactId=maven-archetype-webapp
-DinteractiveMode=falseMaven will begin processing and will create a complete web-based java application engineering structure.
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'archetype'.
[INFO] -------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO] task-segment: [archetype:generate] (aggregator-style)
[INFO] -------------------------------------------------------------------
[INFO] Preparing archetype:generate
[INFO] No goals needed for project - skipping
[INFO] [archetype:generate {execution: default-cli}]
[INFO] Generating project in Batch mode
[INFO] --------------------------------------------------------------------
[INFO] Using following parameters for creating project
from Old (1.x) Archetype: maven-archetype-webapp:1.0
[INFO] --------------------------------------------------------------------
[INFO] Parameter: groupId, Value: com.companyname.automobile
[INFO] Parameter: packageName, Value: com.companyname.automobile
[INFO] Parameter: package, Value: com.companyname.automobile
[INFO] Parameter: artifactId, Value: trucks
[INFO] Parameter: basedir, Value: C:\MVN
[INFO] Parameter: version, Value: 1.0-SNAPSHOT
[INFO] project created from Old (1.x) Archetype in dir: C:\MVN\trucks
[INFO] -------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] -------------------------------------------------------------------
[INFO] Total time: 16 seconds
[INFO] Finished at: Tue Jul 17 11:00:00 IST 2012
[INFO] Final Memory: 20M/89M
[INFO] -------------------------------------------------------------------Now go to the C:/MVN directory and you'll see a java application project called trucks (specified by artifactld).
Maven uses a standard directory architecture, as in the example above, and we can understand the following key concepts:
| The folder structure | Describe |
|---|---|
| trucks | Contains the src folder and pom .xml |
| src/main/webapp | Contains index .jsp and WEB-INF folders. |
| src/main/webapp/WEB-INF | Contains web .xml |
| src/main/resources | Contains images / properties files. |
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.companyname.automobile</groupId>
<artifactId>trucks</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>trucks Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>trucks</finalName>
</build>
</project>If you look closely, Maven also created a source file for the sample JSP.
Open C: MVN and trucks, src, main, webapp, and folders, you'll see the index .jsp.
<html>
<body>
<h2>Hello World!</h2>
</body>
</html>Build Web Application
Open the terminal, enter the C: MVN?trucks directory, and then execute the following mvn command.
C:\MVN\trucks>mvn clean packageMaven will begin building this project with the log output as follows:
[INFO] Scanning for projects...
[INFO] -------------------------------------------------------------------
[INFO] Building trucks Maven Webapp
[INFO] task-segment: [clean, package]
[INFO] -------------------------------------------------------------------
[INFO] [clean:clean {execution: default-clean}]
[INFO] [resources:resources {execution: default-resources}]
[WARNING] Using platform encoding (Cp1252 actually) to
copy filtered resources,i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] [compiler:compile {execution: default-compile}]
[INFO] No sources to compile
[INFO] [resources:testResources {execution: default-testResources}]
[WARNING] Using platform encoding (Cp1252 actually) to
copy filtered resources,i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory
C:\MVN\trucks\src\test\resources
[INFO] [compiler:testCompile {execution: default-testCompile}]
[INFO] No sources to compile
[INFO] [surefire:test {execution: default-test}]
[INFO] No tests to run.
[INFO] [war:war {execution: default-war}]
[INFO] Packaging webapp
[INFO] Assembling webapp[trucks] in [C:\MVN\trucks\target\trucks]
[INFO] Processing war project
[INFO] Copying webapp resources[C:\MVN\trucks\src\main\webapp]
[INFO] Webapp assembled in[77 msecs]
[INFO] Building war: C:\MVN\trucks\target\trucks.war
[INFO] -------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] -------------------------------------------------------------------
[INFO] Total time: 3 seconds
[INFO] Finished at: Tue Jul 17 11:22:45 IST 2012
[INFO] Final Memory: 11M/85M
[INFO] -------------------------------------------------------------------Deploy a web app
Copy now in C: The MVN and trucks and the trucks.war under the target folder go to the webapp directory of your web server and restart the web service.
Test your web app
Run your web app using the URL: http://.lt;server-name?gt;?lt-port-number?gt;/trucks/index.jsp the web app.
Verify the output:
