HTTP-статус 404 - Использование Spring+Tomcat

Question

Я новичок в весне, и я работаю над своим учебным проектом. С кодом ниже, я могу просматривать index.jsp, но не test.jsp. Я использую Spring 4.0.1+ Tomcat 7.0.52 + STS 3.4.0.

Webapp.java

package springweb;

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

public class Webapp extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[0];
    }

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

    @Override
    protected String[] getServletMappings() {
        return new String[]{ "/" };
    }
}

IndexController.java

package springweb.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class IndexController {
    private static final Logger logger = LoggerFactory.getLogger(IndexController.class);
    @RequestMapping(value="/")
    public String index() {
        logger.info("Welcome Index!");
        return "index";
    }
}

TestController.java

package springweb.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class TestController {
    private static final Logger logger = LoggerFactory.getLogger(TestController.class);
    @RequestMapping(value="/test/", method = RequestMethod.GET)
    public String test() {
        logger.info("Welcome test!");
        return "test";
    }
}

WebConfig.java

package springweb;

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

@Configuration
@EnableWebMvc
@ComponentScan(basePackages={"springweb.controller"})
public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

    @Bean
    public ViewResolver viewResolver() {

        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/jsp/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }
}

Answer 1

Простой ответ на 100% бесплатный XML:

1. Установить свойство для DispatcherServlet

   public class SpringMvcInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
   
       @Override
       protected Class<?>[] getRootConfigClasses() {
           return new Class[] { RootConfig.class  };
       }
   
       @Override
       protected Class<?>[] getServletConfigClasses() {
           return new Class[] {AppConfig.class  };
       }
   
       @Override
       protected String[] getServletMappings() {
           return new String[] { "/" };
       }
   
       //that's important!!
       @Override
       protected void customizeRegistration(ServletRegistration.Dynamic registration) {
           boolean done = registration.setInitParameter("throwExceptionIfNoHandlerFound", "true"); // -> true
           if(!done) throw new RuntimeException();
       }
   
   }
   

2. Создать @ControllerAdvice:

   @ControllerAdvice
   public class AdviceController {
   
       @ExceptionHandler(NoHandlerFoundException.class)
       public String handle(Exception ex) {
           return "redirect:/404";
       }
   
       @RequestMapping(value = {"/404"}, method = RequestMethod.GET)
       public String NotFoudPage() {
           return "404";
   
       }
   
   }
   

это все