polimi.thesis.config.Config.java Source code

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Here is the source code for polimi.thesis.config.Config.java

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package polimi.thesis.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.JstlView;
import org.springframework.web.servlet.view.UrlBasedViewResolver;

/**
 * The Configuration annotation identifies it to Spring as a configuration class.
 */
@Configuration
/**
 * The ComponentScan and EnableWebMVC are required for Spring to find and 
 * configure all annotated classes. Spring will search for annotations on classes 
 * specified in the value parameter that is passed to ComponentScan i.e polimi.thesis?. 
 */
@ComponentScan("polimi.thesis")
@EnableWebMvc

/**
 * extending WebMvcConfigurerAdapter is necessary in this case to allow resources 
 * (images, JavaScript, CSS etc.) to be included in the project. 
 * To that end the addResourceHandlers() method is overridden. In addResourceHandlers() 
 * an instruction to Spring is given that when it sees a URL beginning with resources/**?,
 * let it through and search the actual location /WEB-INF/resources/*? for the resource 
 * (multiple locations can be specified in the addResourceLocations() method).
 */
public class Config extends WebMvcConfigurerAdapter {

    @Bean
    public UrlBasedViewResolver setupViewResolver() {
        UrlBasedViewResolver resolver = new UrlBasedViewResolver();
        resolver.setPrefix("/WEB-INF/jsp/");
        resolver.setSuffix(".jsp");
        resolver.setViewClass(JstlView.class);
        return resolver;
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/WEB-INF/resources/");
    }

}