一站式解决swagger报错Whitelabel Error Page

有以下经常出现的几点会导致swagger的访问报错Whitelabel Error Page

1、POM文件配置，版本根据实际情况可变

<swagger.version>2.9.2</swagger.version>
<swagger.annotation.version>1.5.20</swagger.annotation.version>

<!-- swagger2 -->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-core</artifactId>
    <version>${swagger.version}</version>
</dependency>
<!-- swagger2 -->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>${swagger.version}</version>
</dependency>
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>${swagger.version}</version>
</dependency>
<!-- swagger2 -->
<dependency>
    <groupId>io.swagger</groupId>
    <artifactId>swagger-annotations</artifactId>
    <version>${swagger.annotation.version}</version>
</dependency>

2、swaggerConfig配置不正确，参考配置如下：

@Configuration
@EnableSwagger2
@Profile({"dev", "qa"})
public class SwaggerConfig {

    @Value("${server.servlet.context-path}")
    private String contextPath;

    @Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                //这里采用包含注解的方式来确定要显示的接口
                .apis(RequestHandlerSelectors.basePackage("com.cn.xyj"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("XXX系统-"+contextPath+" 服务restful api")
                .description(contextPath+" api接口文档")
                //服务条款网址
                .termsOfServiceUrl("http://localhost/")
                .version("1.0.0")
                .contact(new Contact("authorName", "", "[email protected]"))
                .build();
    }
}

2、在springBoot启动类中添加@EnableSwagger2 注解

3、添加addResourceHandlers

registry.addResourceHandler("/swagger-ui.html")
      .addResourceLocations("classpath:/META-INF/resources/");

如果解决以上几点还有报错，可能是地址URL输入错误

如果有context-path访问服务的地址http://localhost:8080/context-path/swagger-ui.html 

如果没有context-path访问：http://localhost:8080/swagger-ui.html