HTTP状态404 - 使用Spring + Tomcat

Question

我是Spring的初学者，我正在学习我的项目。使用下面的代码，我可以查看index.jsp，但不能查看test.jsp。我使用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

100％免费XML的简单答案：

1. 设置属性为DispatcherServlet的

   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. 创建@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"; 
   
       } 
   
   } 
   

这一切