Spring WebApplicationInitializer

Question

最近我正在学习基于spring java的配置。我试图用WebConfig和替换web.xml WebApplicationInitializer。

每当我要求的网址：http://localhost:8080/spring-demo/greeting.html我得到404说明请求的资源不可用。 以下是我的项目详情。

WebConfig.java

package com.soumya.spring; 

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

@Configuration 
@EnableWebMvc 
@ComponentScan(basePackages = "com.soumya.spring") 
public class WebConfig { 

} 

WebAppInitializer.java

​​

控制器

package com.soumya.spring.controller; 

import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.RequestMapping; 

@Controller 
public class HelloController { 

    @RequestMapping(value = "/greeting") 
    public String greeting(Model model) { 
     model.addAttribute("greeting", "Hello World!"); 
     return "greeting.jsp"; 
    } 

} 

项目结构图片

Project Structure

Answer 1

带注释的初始化示例。

public class Initializer implements WebApplicationInitializer { 
    @Override 
    public void onStartup(ServletContext servletContext) throws ServletException { 
     // Creates context object 
     AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext(); 

     // Registers annotated configurations class 
     ctx.register(Configurations.class); 

     // Sets ContextLoaderListener to servletContext 
     servletContext.addListener(new ContextLoaderListener(ctx)); 

     // Passes servlet context to context instance 
     ctx.setServletContext(servletContext); 

     //Registers dispatch servlet and passes context instance 
     ServletRegistration.Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx)); 

     //Maps URL pattern 
     servlet.addMapping("/"); 

     //Sets creation priority 
     servlet.setLoadOnStartup(1); 

     //Registers security filters 
     FilterRegistration.Dynamic security = servletContext.addFilter("springSecurityFilterChain", new DelegatingFilterProxy()); 

     // Sets dispatcher types a security filters to be applied 
     EnumSet<DispatcherType> dispatcherTypes = EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD); 
     security.addMappingForUrlPatterns(dispatcherTypes, true, "/*"); 
    } 
} 

Answer 2

如果你正在使用Spring MVC的最新版本，请在下面

from context.setConfigLocation("com.soumya.spring.WebConfig"); 

到context.register（WebConfig.class）取代configlocation。它应该工作。