spring-mvc中，使用java配置DispatcherServlet，但是没有生效。。

[嚎油根]

最近在学习spring实战(第四版)一书，遇上了问题，整了一天没整好，希望大家能帮我

public class SpittrWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer{
    
    @Override
    protected String[] getServletMappings() {
        return new String[] {"/"};
    }
    
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] {RootConfig.class};
    }

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

@Configuration
//启动spring mvc
@EnableWebMvc 
@ComponentScan("spittr.web")
public class WebConfig extends WebMvcConfigurerAdapter{
    //配置jsp视图解析器
    @Bean
    public ViewResolver viewResolver(){
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        resolver.setExposeContextBeansAsAttributes(true);
        return resolver;
    }
    
    @Override
    public void configureDefaultServletHandling(
            DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
    
}

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

}

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

使用服务器Tomcat8 jdk7
spring jar包是4.0

按书上所说继承AbstractAnnotationConfigDispatcherServletInitializer类的，应该会被支持Servlet3.0的服务器自动加载
但是：

[alipay_]

沙发 +1 同问

[嚎油根]

嗯...本来spring是用user library导入的，放到WEB-INF下的lib里就行了