Building a Java Application from GitHub using Jenkins | Run java program from Jenkins

YouTube Excerpt: Building a Java application using Jenkins and GitHub involves setting up a continuous integration (CI) pipeline that fetches the source code from a GitHub repository, builds the application, runs tests, and possibly deploys it. Here are the general steps to achieve this: Prerequisites: - GitHub repository: The Java application's source code hosted on GitHub. - Jenkins: Jenkins installed and configured on your server or local machine. Steps: 1. Set up a Jenkins job: - Create a new Jenkins job: In Jenkins, create a new freestyle project or a pipeline. - Configure source code management: - In the Jenkins job configuration, set up the GitHub repository URL where your Java application code resides. - Add credentials if your repository requires authentication. 2. Install necessary tools in Jenkins: - Install Java: Ensure Java Development Kit (JDK) is installed on the Jenkins server or configure Jenkins to use an installed JDK. - Plugins: GitHub Integration Plugin. 3. Build and Test: - Set up build steps: Define build steps in Jenkins, typically involving commands to compile and build the Java application. -For Java: javac Test.java -For Maven: mvn clean install - Add test steps: Run standalone Java and unit tests and any other necessary testing procedures. - To run Java program : java Test (class fileName) - For Maven: mvn test 4. Configure Deployment (if required): - Deploy to a server: If your project involves deployment to a server, set up deployment steps within Jenkins. This could involve copying the built artifacts to a specific location. 5. Setup Webhooks (Optional): - Set up GitHub Webhooks: To trigger Jenkins builds automatically upon code changes, set up webhooks in the GitHub repository to notify Jenkins when changes occur. 6. Save and run the Jenkins job: - Save your Jenkins job configuration. - Manually run the job: Test your Jenkins job by manually triggering a build to ensure everything is set up correctly. 7. Monitor and Troubleshoot: - Monitor Jenkins Console Output: Check the Jenkins job's console output for any errors or issues during the build process. - Troubleshoot and Iterate: If there are any problems, adjust your Jenkins job configuration and retest until the process runs smoothly.

Building a Java application using Jenkins and GitHub involves setting up a continuous integration (CI) pipeline that fetches the source code from a...

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