Deploying a Spring Boot Project with Tomcat as the Servlet Container
In the realm of Java development, deploying a Spring Boot application on an external Tomcat server can be a straightforward process. Here's a comprehensive guide to help you achieve this.
To begin, you'll need to modify your Spring Boot main application class. Extend and override the method, as shown below:
```java import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
@SpringBootApplication public class YourApplication extends SpringBootServletInitializer {
} ```
Next, update your file to package as a WAR and mark the embedded Tomcat starter dependency as .
```xml
```
Build the WAR file using Maven:
This generates the WAR file in the directory with a successful build message.
Now, it's time to deploy the WAR file to the external Tomcat server. Copy or upload the WAR file to Tomcat's directory or deploy via the Tomcat Manager UI. If redeploying, undeploy the existing application first to avoid conflicts. Start or restart Tomcat if necessary. Access the application via .
For a visual explanation of this process, a video tutorial is available. Remember, higher versions of Tomcat are required for deployment, with Apache Tomcat Server 9.0.x or higher versions being ideal.
This process adapts your Spring Boot app from the default embedded JAR setup to a WAR suited for deployment on an external Tomcat instance. Happy coding!
[1] Priyarajtt's article on deploying Spring Boot WAR on Tomcat [3] Priyarajtt's video explanation of the project [5] Related article: Introduction to Java
To suit your Spring Boot application for deployment on an external Tomcat server, modify your main application class by extending and overriding a method as shown in the sample code.
Afterwards, update your project to package as a WAR and exclude the embedded Tomcat starter dependency, preparatory for using technology like Tomcat.