如何将RequestMappingHandlerMapping和ResourceHandlers添加到springMVC配置类

Question

我有一个像这样的spring MVC配置类:

@Configuration 
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter{
@Bean
public InternalResourceViewResolver configureInternalResourceViewResolver()   {
    InternalResourceViewResolver resolver = new InternalResourceViewResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".jsp");
    return resolver;
}

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/resources/**").addResourceLocations(
            "/resources/");
}


}

我有一个问题,使用尾部斜杠来管理URL,类似于此.所以我想添加RequestMappingHandlerMapping类,但基于我到达那里的指令,我需要扩展 WebMvcConfigurationSupport 类和实现requestMappingHandlerMapping()方法,但不幸的是我已经扩展了WebMvcConfigurationSupport类的资源映射.有什么办法可以为我的班级添加requiest映射处理程序吗？

注意:我使用的是Spring 3.1.1.RELEASE版

Answer 1

我没有从你的问题中得到你为什么不能使用WebMvcConfigurationSupport.如果通过你提到的"......不幸的是我已经扩展WebMvcConfigurationSupport了资源的映射类......"你宁愿意味着你已经扩展了它WebMvcConfigurerAdapter,你应该知道WebMvcConfigurationSupport暴露完全相同的方法.

无论如何,以下应该是Spring MVC 3.1版本的工作java配置

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurationSupport {

    @Override
    @Bean
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping hm = super.requestMappingHandlerMapping();
        hm.setUseSuffixPatternMatch(false);
        return hm;
    }

    @Bean
    public InternalResourceViewResolver configureInternalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        return resolver;
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations(
                "/resources/");
    }
}

Answer 2

使用WebMvcConfigurationSupport覆盖requestMappingHandlerMapping可能会关闭Spring Boot的默认配置。更好的方法是将WebMvcRegistrations用作

@Configuration
static class CustomRequestMappingHandlerMapping {

    @Bean
    public WebMvcRegistrationsAdapter webMvcRegistrationsHandlerMapping() {
        return new WebMvcRegistrationsAdapter() {
            @Override
            public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
                return new MyRequestMappingHandlerMapping();
            }
        };
    }
}

Answer 3

从 Spring Boot 2.0.0 开始，您可以直接使用 WebMvcRegistrations

@Configuration
public class WebMvcConfig  {
    @Bean
    public WebMvcRegistrations webMvcRegistrationsHandlerMapping() {
        return new WebMvcRegistrations() {
            @Override
            public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
                return new CustomRequestMappingHandlerMapping();
            }
        };
    }
}