Deploying-Web-Applications-in-Jetty

• We'll start with a quick review of the Jetty web server before moving on to different methods for deploying a WAR file.

1) SETUP

• The very first step to start this is to download the latest version Jetty

• Let's go to the console, navigate to our desired location, and execute the following command:

  mvn archetype:generate -DgroupId=com.baeldung -DartifactId=jetty-app -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false

  

• This command will generate a complete Java web app in our current location's jetty-app folder. Since, WAR files are involved, so let's head to the root of the project and build it:

  cd jetty-app

• Building with Maven:

  mvn package

  

  

  • After executing this command jetty-app.war will be created at location jetty-app/target/jetty-app.war.

    

2) JETTY STRUCTURE

3) USING WAR (Deploying web application by copying WAR)

• To deploy a web application to a Jetty server, transfer the WAR file into $JETTY_HOME/webapps directory.

• Navigating into $JETTY HOME and performing the command will start the server:

  java -jar start.jar

• /Jetty-app context will host our new app.

• Hello world! should appear on the screen if we navigate to the URL given below in the web browser.

  http://localhost:8080/jetty-app

4) USING JETTY MAVEN PLUGIN (Deploying web application by using jetty maven plugin)

• As we build Java web applications, the jetty Maven plugin allows us to perform rapid testing and iteration.

• Adding the plugin to pom.xml is all that's required to deploy and run applications with it:

  <groupId>org.eclipse.jetty</groupId>
  <artifactId>jetty-maven-plugin</artifactId>
  <version>9.3.11.v20160721</version>
  

```

• After adding the plugin, we navigate to the root of our app and run the following command:

  mvn jetty:run

• The plugin deploys the app to a new jetty instance created by this command. We can get to it by typing the URL given below:

  http://localhost:8080