No mapping found for HTTP request with URI [/proj/] in DispatcherServlet with name 'dispatcher'

Question

I am following "Spring in action - Craig Walls" book and encountered the below error message. Lot of the issues were mentioned in relation to web.xml. I am using Java config and not web.xml.

Controller in spitter.web package:

package spitter.web;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class HomeController {

    @RequestMapping(value="/", method = RequestMethod.GET)
    public String home(){
        return "home";
    }
}

Dispatcher servlet configuration in spittr.config package:

package spittr.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class SpittrWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected String[] getServletMappings() {
        return new String[] {"/"};
    }

    @Override
    protected Class<?>[] getRootConfigClasses() {
        //return new Class<?>[] {RootConfig.Class};
        return null;
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        //return new Class<?>[] {WebConfig.Class};
        return null;
    }
}

Rootconfig in same package:

package spittr.config;

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

@Configuration
@ComponentScan(basePackages={"spitter"}, excludeFilters={@Filter(type=FilterType.ANNOTATION, value=EnableWebMvc.class)})
public class RootConfig {

}

WebConfig:

package spittr.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan("spitter.web")
public class WebConfig extends WebMvcConfigurerAdapter{
    @Bean
    public ViewResolver viewResolver(){
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WebContent/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        resolver.setExposeContextBeansAsAttributes(true);
        return resolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){
         configurer.enable();
    }
}

I am using Maven to resolving dependencies and Tomcat 9 within eclipse to run.

Sep 17, 2016 4:46:48 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 5007 ms Sep 17, 2016 4:46:49 PM org.springframework.web.servlet.PageNotFound noHandlerFound WARNING: No mapping found for HTTP request with URI [/SpringMVC/] in DispatcherServlet with name 'dispatcher'

My view home.jsp is in WebContent/WEB-INF/views/home.jsp.

Answer 1

Thanks for your help. I made the below changes and it is working now.

I move the web.config to the same package as my constructor. Then created the war file and deployed in Apache Tomcat. Now i am able to access the website.