Deploy Spring Boot to Tomcat

Question

So I am new to Spring - so I thought I would try Spring Boot

I am using a Maven to build - I set up a view requests, when I run it as \"App\" looks like it starts t

Answer 1

Below code worked fine for tomcat8 deployment without tomcat dependency.

@SpringBootApplication
@EnableAutoConfiguration
@ComponentScan
public class ManufacturingRegionApplication extends SpringBootServletInitializer {

public static void main(String[] args) {
    new SpringApplicationBuilder(ManufacturingRegionApplication.class).application().run(args);
}

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder applicationBuilder) {
    return applicationBuilder.sources(application);
}

private static Class<ManufacturingRegionApplication> application = ManufacturingRegionApplication.class;

}

Below dependency is not required.

   <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>

---

 @RestController
 @RequestMapping(value = "/manufacturing-region-service")
 public class ManufacturingRegionService {

@Resource
private ManufacturingRegionDao manufacturingRegionDao;

@ResponseBody
@Transactional(readOnly = true)
@RequestMapping(value = "/region-codes/{abbr}", method = GET, produces = "application/json")

---

http://localhost:8080/manufacturing-region-api/manufacturing-region-service/region-codes/ABBRVALUE

Answer 2

The chapter Packaging executable jar and war files in the Spring Boot reference documentation states:

To build a war file that is both executable and deployable into an external container you need to mark the embedded container dependencies as “provided”, e.g:

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <!-- ... -->
    <packaging>war</packaging>
    <!-- ... -->
    <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>
</project>

Answer 3

When we choose Spring Boot, we don't want to produce a WAR. From the root page:

Spring Boot makes it easy to create stand-alone [...] 
Applications that can you can "just run".
Embed Tomcat or Jetty directly (no need to deploy WAR files)

EDITED: So, if the purpose is "to try Spring Boot", I suggest to not generate a WAR file.

If you really need to produce a WAR file (keep your code built against SpringBoot and produce a file that you can run in any standard servlet container...) then you should read the documentation Converting a Spring Boot JAR Application to a WAR.

Did you include spring-boot-maven-plugin in the build process? You didn't describe this step...