Spring framework 3 xml files to java files

ServletContextXml.java


package com.test.settings;

import java.io.IOException;

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.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.mvc.WebContentInterceptor;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;


@Configuration
@ComponentScan("com.test")
@EnableWebMvc // <mvc:annotation-driven />
public class ServletContextXml extends WebMvcConfigurerAdapter {
   
       
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry){
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }
   
    @Bean
    public InternalResourceViewResolver setInternalResourceViewResolver(){
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
       
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        resolver.setViewClass(JstlView.class);
        return resolver;
    }  
}

WebXml.java

package com.test.settings;

 

import javax.servlet.FilterRegistration;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.ServletRegistration;

 

import org.springframework.web.WebApplicationInitializer;

import org.springframework.web.context.ContextLoaderListener;

import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;

import org.springframework.web.filter.CharacterEncodingFilter;

import org.springframework.web.servlet.DispatcherServlet;

 

public class WebXml implements WebApplicationInitializer{

 

    @Override

    public void onStartup(ServletContext servletContext) throws ServletException {

        

        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();

        ctx.register(ServletContextXml.class);

        servletContext.addListener(new ContextLoaderListener(ctx));

        

        FilterRegistration.Dynamic charEncodingFilter = 

                servletContext.addFilter("charEncodingFilter", getCharacterEncodingFilter());

    

        ctx.setServletContext(servletContext);

        

        ServletRegistration.Dynamic servlet = 

                servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));

        

       charEncodingFilter.addMappingForServletNames(null, true, servlet.getName());

        

        servlet.addMapping("/");

        servlet.setLoadOnStartup(1);

    }

    

    private CharacterEncodingFilter getCharacterEncodingFilter(){

        CharacterEncodingFilter filter = new CharacterEncodingFilter();

        

        filter.setEncoding("UTF-8");

        filter.setForceEncoding(true);

        return filter;

    }

 

}