Portlet Provider Template

In this article, you’ll learn how to create a Liferay portlet provider as a Liferay module. To create a Liferay portlet provider via the command line using Blade CLI or Maven, use one of the commands with the following parameters:

blade create -t portlet-provider [-p packageName] [-c className] projectName

or

mvn archetype:generate \
    -DarchetypeGroupId=com.liferay \
    -DarchetypeArtifactId=com.liferay.project.templates.portlet.provider \
    -DartifactId=[projectName] \
    -Dpackage=[packageName] \
    -DclassName=[className] \
    -DliferayVersion=7.1

You can also insert the -b maven parameter in the Blade command to generate a Maven project using Blade CLI.

The template for this kind of project is portlet-provider. Suppose you want to create a portlet provider project called my-portlet-provider-project with a package name of com.liferay.docs.portlet and a class name prefix of Sample. You could run the following command to accomplish this:

blade create -t portlet-provider -p com.liferay.docs -c Sample my-portlet-provider-project

or

mvn archetype:generate \
    -DarchetypeGroupId=com.liferay \
    -DarchetypeArtifactId=com.liferay.project.templates.portlet.provider \
    -DgroupId=com.liferay \
    -DartifactId=my-portlet-provider-project \
    -Dpackage=com.liferay.docs \
    -Dversion=1.0 \
    -DclassName=Sample \
    -Dauthor=Joe Bloggs \
    -DliferayVersion=7.1

After running the Blade command above, your project’s directory structure would look like this

  • my-portlet-provider-project
    • gradle
      • wrapper
        • gradle-wrapper.jar
        • gradle-wrapper.properties
    • src
      • main
        • java
          • com/liferay/docs
            • constants
              • SamplePortletKeys.java
              • SampleWebKeys.java
            • portlet
              • SampleAddPortletProvider.java
              • SamplePortlet.java
        • resources
          • META-INF
            • resources
              • init.jsp
              • view.jsp
    • bnd.bnd
    • build.gradle
    • gradlew

The Maven-generated project includes a pom.xml file and does not include the Gradle-specific files, but otherwise, appears exactly the same.

The generated module is functional and is deployable to a Liferay Portal instance. To build upon the generated app, modify the project by adding logic and additional files to the folders outlined above. You can visit the Providing Portlets to Manage Requests tutorial for instructions on customizing a portlet provider project.

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