TechieHints SOFTWARE

Here is the question how to configure Spring MVC in SpringBoot Application.

SpringBoot solution is minimal configuration for integration of SpringModules.

A Complete integration and code clean up as per advance provided by Spring Boot.

1. No web.xml & dispatcher-servlet.xml
2. Required a main  class ( extends SpringBootServletInitializer )
3.  Invoke static run method in SpringApplication

Spring Boot provides simple steps it involves following steps:

1. Add application.properties.
2. Configure Spring Application class.
3. Invoke SpringApplication class
Thats All !!

Lets have look into it how to do practically.

1. Add application.properties under resources.

# Add below properties 
# View resolver settings as below
spring.mvc.view.prefix: /WEB-INF/view/
spring.mvc.view.suffix: .jsp

# Custom messages can be configured as below
welcome.message: Hello Techie !! Welcome to Spring Boot.

Message can be read in the Controller  as below.

@org.springframework.beans.factory.annotation.Value("$welcome.message:test") 
private String message = "Hello World";

               2. Configure the Application Class

import org.springframework.boot.SpringApplication;  
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;        
import org.springframework.boot.autoconfigure.SpringBootApplication;        
import org.springframework.boot.builder.SpringApplicationBuilder;        
import org.springframework.boot.web.support.SpringBootServletInitializer;        
import org.springframework.context.annotation.ComponentScan; 
   
@EnableAutoConfiguration 
@SpringBootApplication   
@ComponentScan( "org.app.controllers" )  
public class ApplicationRunner extends SpringBootServletInitializer  
	
       @Override   
	protected SpringApplicationBuilder configure(SpringApplicationBuilder application)             
            return application.sources(ApplicationRunner.class);        
	
        
	public static void main(String[] args)         
            SpringApplication.run(ApplicationRunner.class, args);        
	        
        

3. Run ApplicationRunner class:

Now Spring Boot will perform the action internally.

1. Invokes configured web server. Here it is tomcat. org.springframework.boot spring-boot-starter-tomcat provided
2. Webserver will run with application with out context path.
3. Services can be accessed with actions or mapping name directly.

   Example: 
   localhost:8080 // will results in default page.
   localhost:8080/response // will find the service mapped with "response"

Hope it helps, Thanks for reading post !!