java - Spring MVC 基于注释的配置不起作用

Question

我尝试在 this tutorial 的帮助下创建一个简单的 Spring MVC 项目但是当我部署时，它显示 404 服务器错误。由于我是 spring MVC 的初学者，尽管浏览了这里和其他地方的所有答案，我仍无法找出项目中的问题。我将非常感谢您的帮助在弄清楚。

内容如下:

• POM.xml

  <project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0     http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com</groupId>
      <artifactId>deevigeweb</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>deevigeweb Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
          <dependency>
              <groupId>junit</groupId>
              <artifactId>junit</artifactId>
              <version>3.8.1</version>
              <scope>test</scope>
          </dependency>
  
          <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>javax.servlet-api</artifactId>
              <version>3.1.0</version>
          </dependency>
  
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-core</artifactId>
              <version>4.1.6.RELEASE</version>
          </dependency>
  
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-context</artifactId>
              <version>4.1.6.RELEASE</version>
          </dependency>
  
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
             <version>4.1.6.RELEASE</version>
         </dependency>
  
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
  
     </dependencies>
     <build>
        <finalName>deevigeweb</finalName>
     </build>
  </project>
  

• Servlet 初始化程序(DeevigeServletInitializer.java)

  package com.deevigeweb.config;
  import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
  
  public class DeevigeServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
  
      @Override
      protected Class<?>[] getRootConfigClasses() {
         return new Class[] {DeevigeWebMVCConfig.class};
      }
  
      @Override
      protected Class<?>[] getServletConfigClasses() {
         return null;
      }
  
      @Override
      protected String[] getServletMappings() {
         return new String[] {"/"};
      }
  
  }
  

• Web MVC 配置(DeevigeWebMVCConfig.java)

  package com.deevigeweb.config;
  
  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.ResourceHandlerRegistry;
  import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
  import org.springframework.web.servlet.view.InternalResourceViewResolver;
  import org.springframework.web.servlet.view.JstlView;
  
  @EnableWebMvc
  @Configuration
  @ComponentScan({"com.deevigeweb"})
  public class DeevigeWebMVCConfig extends WebMvcConfigurerAdapter {
      @Override
      public void addResourceHandlers(ResourceHandlerRegistry registry) {
           registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
  }
  
  @Bean
  public InternalResourceViewResolver viewResolver(){
      InternalResourceViewResolver resolver = new InternalResourceViewResolver();
      resolver.setViewClass(JstlView.class);
      resolver.setPrefix("/WEB-INF/views");
      resolver.setSuffix(".jsp");
      return resolver;
  }
  
  }
  

• Controller (SearchViewController.java)

  package com.deevigeweb.controllers.webapp;
  
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestMethod;
  import org.springframework.web.servlet.ModelAndView;
  
  public class SearchViewController {
      @RequestMapping(value="/",method=RequestMethod.GET)
      public ModelAndView doLanding(){
          return new ModelAndView("searchview");
      }
  }
  

• JSP(searchview.jsp)

  <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
  <!DOCTYPE html >
  <html>
      <head>
          <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
          <title>Welcome</title>
      </head>
      <body>
          <h1>Welcome</h1>
      </body>
  </html>
  

• 目录结构 project structure

Answer 1

也许添加尾部斜杠对您有用:

resolver.setPrefix("/WEB-INF/views/");

还在您的 SearchViewController 类上添加 @Controller 注释