Spring Boot Example

Application.java

package org.example;
import java.io.File;
import java.util.logging.Logger;
import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;

@SpringBootApplication
@EnableAutoConfiguration
public class Application extends WebMvcConfigurerAdapter{
	public static void main(String[] args){
		SpringApplication.run(Application.class, args);
	}
}

DataController.java

package org.example;
import java.util.logging.Logger;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.beans.factory.annotation.Autowired;
import javax.servlet.http.HttpServletResponse;
import org.springframework.ui.Model;
import org.example.AttackService;
import org.springframework.web.bind.annotation.RequestMapping;

@RestController
public class DataController{
    private static Logger log = Logger.getLogger("Data Controller");

    @Autowired
    AttackService attack;

    @GetMapping("ping")
    String get(){
        return "Worked";
    }

    @RequestMapping("/")
    String getIndex(Model model){
        model.addAttribute("key", "My Key");
        return "home";
    }

    @GetMapping(path = "/attacks.json", produces = "application/json")
    String getData(HttpServletResponse response){
        try{
            return attack.getReport();
        }
        catch(Exception ex){
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
            return ex.toString();
        }
    }
}

WebConfig.java

package org.example;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Description;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.thymeleaf.spring5.SpringTemplateEngine;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import java.util.logging.Logger;
import java.io.File;

@Configuration
public class WebConfig implements WebMvcConfigurer {

    private static Logger log = Logger.getLogger("Application");
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        String currentPath = new File(".").getAbsolutePath();
        log.info("file:///"+currentPath+"/../ui/dist");
        registry.addResourceHandler("/ui/**")
                .addResourceLocations("file:///"+currentPath+"/../ui/dist/");
    }

    @Bean
    @Description("Thymeleaf template resolver serving HTML 5")
    public ClassLoaderTemplateResolver templateResolver() {

        ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();

        templateResolver.setPrefix("templates/");
        templateResolver.setCacheable(false);
        templateResolver.setSuffix(".html");
        templateResolver.setTemplateMode("HTML5");
        templateResolver.setCharacterEncoding("UTF-8");

        return templateResolver;
    }

    @Bean
    @Description("Thymeleaf template engine with Spring integration")
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver());
        return templateEngine;
    }

    @Bean
    @Description("Thymeleaf view resolver")
    public ViewResolver viewResolver() {
        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setTemplateEngine(templateEngine());
        viewResolver.setCharacterEncoding("UTF-8");
        return viewResolver;
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/other").setViewName("home");
    }
}