swagger错误总结

1.按照步骤一步步做，pom依赖，类配置，检查注解有无，是否冲突，路径是否正确，是否与其他路径冲突。

2.看pom依赖与sprignboot版本是否对应，一般2.2.1release 对应2.7的swagger

3.url是否是swagger-ui.html

4.看项目是否设置了其他路径

5.看资源目录是否放置正确

6.看项目是否识别到swagger的路径

如果没有添加一下内容在mvccongif中

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/statics/**").addResourceLocations("classpath:/statics/");
    // 解决 SWAGGER 404报错
    registry.addResourceHandler("/swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
    registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
}

@Configuration
public class MvcConfig implements WebMvcConfigurer {

    @Bean
    public LoginInterceptor createLoginInterceptor(){
        return new LoginInterceptor();
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(createLoginInterceptor())
                .addPathPatterns("/**")
                .excludePathPatterns("/crm","/index","/user/login","/css/**","/images/**","/js/**","/lib/**");
    }
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/statics/**").addResourceLocations("classpath:/statics/");
        // 解决 SWAGGER 404报错
        registry.addResourceHandler("/swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
    }
}