How to convert this spring boot sample app so a war file is built that can run in an external Tomcat server - spring-boot

Question

I am trying to figure out how to convert this sample spring boot app so that the war file that gets generated can run in an external Tomcat server: enter link description here
Here is my modiefied pom.xml which does generate the war file:
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>org.springframework</groupId>
<artifactId>gs-securing-web</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.3.RELEASE</version>
</parent>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
Here is my new Application class that extends SpringBootServletInitializer:
package hello;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(ApplicationOLD.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(ApplicationOLD.class, args);
}
}
In the console, I can see that the app has been started by Tomcat:
2017-07-14 16:53:10.736 INFO 12020 --- [ main] hello.Application : Starting Application v0.1.0 on LAPTOP-I1Q04POH with PID 12020 (C:\apache-tomcat-9.0.0.M22\webapps\gs-securing-web-0.1.0\WEB-INF\classes started by akova in C:\apache-tomcat-9.0.0.M22\bin)
2017-07-14 16:53:10.740 INFO 12020 --- [ main] hello.Application : No active profile set, falling back to default profiles: default
2017-07-14 16:53:11.012 INFO 12020 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#5f4f198c: startup date [Fri Jul 14 16:53:11 EDT 2017]; root of context hierarchy
2017-07-14 16:53:11.209 INFO 12020 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 197 ms
2017-07-14 16:53:11.256 INFO 12020 --- [ main] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'errorPageFilter' to: [/*]
2017-07-14 16:53:11.295 INFO 12020 --- [ main] hello.Application : Started Application in 1.118 seconds (JVM running for 3.925)
But I can't see to access the app when I go to the url in a browser. I get an HTTP 404 error using the url: http://localhost:8080/gs-securing-web-0.1.0/.
What am I missing??? Thanks

Answer 1

As stated in the porject itself, and the tutorial to followed to build this porject, you should use only this URI: http://localhost:8080/ to consume your service.
Use http://localhost:8080/hello and http://localhost:8080/login for the other resouces.

Answer 2

Add this dependency under dependencies section
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>