I am trying to deploy a Spring Boot app to Tomcat, because I want to deploy to AWS. I created a WAR file, but it does not seem to run on Tomcat, even though it is visible.
Details:
0. Here is my app:
@Configuration
@ComponentScan
@EnableAutoConfiguration
public class App {
public static void main(String[] args) {
SpringApplication.run(SampleController.class, args);
}
}
@Controller
@EnableAutoConfiguration
public class SampleController {
@RequestMapping("/help")
@ResponseBody
String home() {
String input = "Hi! Please use 'tag','check' and 'close' resources.";
return input;
}
}
application.properties has following:
server.port=${port:7777}
After reading a number of pages and question-answers I added following to my POM:
http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<groupId>com.niewlabs</groupId>
<artifactId>highlighter</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.9.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
I ran"mvn package"and got WAR file (size 250Mb), which I put into "webapps" folder.
Update: There is another reference. Not sure how useful it is.
This guide explains in detail how to deploy Spring Boot app on Tomcat:
http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#howto-create-a-deployable-war-file
Essentially I needed to add following class:
public class WebInitializer extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(App.class);
}
}
Also I added following property to POM:
<properties>
<start-class>mypackage.App</start-class>
</properties>