How to run codes written with maven build in Gradle - gradle

if I have created a spring Boot application using maven. Now I have to run the same codes in Gradle,So what all changes I have to make.

Here is the migration guide maven to gradle
A simple project can migrated by following chapter 3
3. Run an automatic conversion
install gradle to you system
run gradle init
Accordig to the same guide:
You’ll find that the new Gradle build includes the following:
All the custom repositories that are specified in the POM
Your external and inter-project dependencies
The appropriate plugins to build the project (limited to one or more of the Maven Publish, Java and War Plugins)

Related

How to reference local Gradle project from Maven build as dependency?

I have several Gradle library projects and main Ant spring web-app project (historically). I'd like to replace Ant with Maven for main project while keeping existing Gradle projects nature.
Is it possible to refer local Gradle projects from pom.xml as local dependencies of Maven project?
Search readily gives me the opposite - "how to refer maven projects from gradle builds", but not my case.
Gradle always builds locally build/libs (or distributions); the only easy way to share the build dependencies between completely different projects is 'as maven repository dependencies'
in your case the options are
Work Local Builds only
add the maven plugin to the gradle builds - do local install
and refer them in the maven build locally.
Build Anywhere
Your Gradle builds publish artefacts to your local nexus
and you refer them properly in your dependencies
--
Gradle by default does not have 'maven install'; it can be added using the maven plugin see - https://docs.gradle.org/current/userguide/maven_plugin.html#header.

Build and package a maven plugin within another project

I am trying to build a Maven plugin using Eclipse. I need it to be in a project called Utilities (contains some other utility tools), i.e. I do not want the plugin to be an Eclipse project all by itself.
The <packaging> tag for Utilities project in its POM is jar, while technically a maven plugin needs to be packaged as a maven-plugin. Is there any way to get around this? Or must I build the Maven plugin as a separate project?

Building Maven sub-modules in a Gradle project

I have a Gradle build working for a bunch of Java and C sub-modules. I would like to add several sub-modules which are incoming from existing code base and are already setup as Maven builds. Is there a way for Gradle to pickup the Maven sub-modules as part of the parent build?
It seems, there is no native way to run some maven goal within gradle build script. By the way, it is possible to run a maven goal, just providig a custom task of Exec type, which will run a maven build as a command line process. You can read more about this task type here.
Furthermore, it is even possible to provide the maven goal artifacts as dependencies for the gradle project, after you build them from custom gradle task and specify the file-dependency with builtBy property. You can read about it in the official user guide.

creating different types of projects using eclipse with maven

I know creating the project using maven with command prompt but if i want to import this project into eclipse i have to run some commands and it will be modified suitable for eclipse, My question is can I create different archetype projects using maven plug in to eclipse, without using maven with cmd ?
You can entirely use Eclipse without using the command prompt. Though I prefer to use both terminal and Eclipse interfaces to utilize the maven project, and is a dynamic way of development. Eclipse Mars already include Maven.
Two ways to do this:
Create a new general project, create new POM file, define dependency and build, and Eclipse will recognize to configure as Maven project without applying Eclipse Project facets.
Create a new Maven project, do not skip archetype selection and use quickstart only if creating a simple Java project with main and test source folders, define module properties (group, artifact, version, etc.), and Eclipse will configure project as Maven project without applying Eclipse Project facets.
To execute a clean install, you need to create a goal "clean install" in Eclipse Run Configuration under Maven. Caution, Eclipse use embedded Maven runtime by default so if you'd like to link with your copy of Maven, you'll need to configure Eclipse to point at your Maven installation directory.
Basically, every command you entered in command prompt need to be a goal in Eclipse Maven Run Configuration to separate yourself from using command prompt.
Example Java Maven Project:
Step 1: Create New Maven Project
The first step to begin Maven-enabled Java development without using command prompt.
Step 2: Eclipse Project Configuration
Most of the time, I usually skip this section unless special circumstance requires a working set.
Step 3: Specifying Archetype
Maven archetype quickstart comes with two source package: test and main. This is the most simplest and efficient option to begin Java development. This is equivalent to -DArchetypeArtifactId=maven-archetype-quickstart option.
Step 4: Define Archetype Parameters
Define your own archetype parameters.
Step 5: Confirm Eclipse generated a Maven-enabled Java project
Double check POM and ensure Eclipse throws no error. In this case, Eclipse warns of Java 1.5 not defined. You can fix this by specifying Java version in maven-compiler-plugin within build tag in POM but that's entirely another thread.
Step 6: Define a Maven Goal
We want to test whether Eclipse can do a "mvn clean install" by creating a new run configuration. You can see the console output in background that Eclipse successfully output Maven build.
Is this what you were asking about?

is it possible to do a Maven build using Build Forge?

Is it possible to do a Maven build using Build Forge? Currently we use Build Forge, ClearCase and ClearQuest with Ant scripts; would like to try a Maven build. Not sure if I can I have no test environment so don't want to mess up any thing and still learning all this stuff too
Maven can be invoked from any build automation framework.
Create a buildforge step that invokes your Maven build as follows:
mvn -s /path/to/maven/settings/files/mysettings.xml clean package
Explicitly selecting the settings file is recommended as this enables you customise the Maven configuration for each project.
Project isolation can be further enhanced by ensuring that each project has it's own local repository location (See the "localRepository" parameter in the settings file documentation)

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