How do I deploy a WAR file in Tomcat 7?

Deploying a WAR File in Tomcat 7: A Beginner's Guide

When deploying a WAR (web application archive) file in Tomcat 7, an automatic deployment process generally occurs. Here's how to deploy your WAR file:

1. Copy the WAR File: Place the sample.war file in the webapps directory of your Tomcat installation.
2. Access Your Application: The deployed application can be accessed at http://localhost:8080/sample. This is possible because Tomcat automatically extracts the WAR file into a folder with the same name within the webapps directory.
3. Monitor the Deployment: After copying the WAR file, check the webapps folder for the extracted folder sample. If it's not created, or if the application doesn't open properly, inspect the log files (e.g., tomcat/logs/catalina.out) to identify any deployment issues.

Additional Notes:

• The auto-deployment process can be adjusted using the context.xml configuration file located in the META-INF directory of the WAR file.
• If you encounter errors during deployment, ensure that the WEB-INF/web.xml file complies with the Servlet specifications and that all required dependencies are present.
• To redeploy an existing WAR file, simply overwrite the old file in the webapps directory. Tomcat will automatically detect the change and restart the application.

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