spring boot的静态资源不能访问
在spring boot的自定义配置类继承 WebMvcConfigurationSupport 后，发现自动配置的静态资源（classpath:/META/resources/，classpath:/resources/，classpath:/static/，classpath:/public/）不能访问。查看 WebMvcAutoConfiguration 的源码：
@Configuration
@ConditionalOnWebApplication
@ConditionalOnClass({ Servlet.class, DispatcherServlet.class,
WebMvcConfigurerAdapter.class })
@ConditionalOnMissingBean(WebMvcConfigurationSupport.class)
@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE + 10)
@AutoConfigureAfter({ DispatcherServletAutoConfiguration.class,
ValidationAutoConfiguration.class })
public class WebMvcAutoConfiguration {
public static String DEFAULT_PREFIX = "";
public static String DEFAULT_SUFFIX = "";
...
这是因为在 springboot的web自动配置类 WebMvcAutoConfiguration 上有条件注解 @ConditionalOnMissingBean(WebMvcConfigurationSupport.class)这个注解的意思是在项目类路径中缺少 WebMvcConfigurationSupport 类型的bean时改自动配置类才会生效，所以继承 WebMvcConfigurationSupport 后需要自己再重写相应的方法。可以在 WebMvcConfigurationSupport 添加如下代码，即可支持访问 swagger 生成的api文档：
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/swagger-ui.html");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
super.addResourceHandlers(registry);
}
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- 本文标签： Java Spring Boot spring cloud