「尝鲜」SpringBoot 快速整合Swagger 3.0

第一步：Maven引入Swagger3.0 starter依赖

Maven项目中引入springfox-boot-starter依赖：

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-boot-starter</artifactId>
    <version>3.0.0</version>
</dependency>

备注：依赖更加简单，不再需要springfox-swagger2 和 springfox-swagger-ui 这两个依赖。

第二步：增加application.yml配置

swagger:
  enable: true
  application-name: ${spring.application.name}
  application-version: 1.0
  application-description: springfox swagger 3.0整合Demo
  try-host: http://localhost:${server.port}
spring:
  application:
    name: springfox-swagger

第三步：启用swagger配置

使用@EnableOpenApi注解，启用swagger配置

@EnableOpenApi
@Configuration
public class SwaggerConfiguration {
}

第四步：启动测试

访问地址：http://127.0.0.1:8080/swagger-ui/index.html

备注：老版本的访问方式为http://127.0.0.1:8080/swagger-ui.html 已经不可用了。

扩展：完整的springfox swagger配置示例

import io.swagger.models.auth.In;
import org.apache.commons.lang3.reflect.FieldUtils;
import org.springframework.boot.SpringBootVersion;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.ReflectionUtils;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.oas.annotations.EnableOpenApi;
import springfox.documentation.service.*;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;

import java.lang.reflect.Field;
import java.util.*;

@EnableOpenApi
@Configuration
public class SwaggerConfiguration implements WebMvcConfigurer {
    private final SwaggerProperties swaggerProperties;

    public SwaggerConfiguration(SwaggerProperties swaggerProperties) {
        this.swaggerProperties = swaggerProperties;
    }

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.OAS_30).pathMapping("/")

                // 定义是否开启swagger，false为关闭，可以通过变量控制
                .enable(swaggerProperties.getEnable())

                // 将api的元信息设置为包含在json ResourceListing响应中。
                .apiInfo(apiInfo())

                // 接口调试地址
                .host(swaggerProperties.getTryHost())

                // 选择哪些接口作为swagger的doc发布
                .select()
                .apis(RequestHandlerSelectors.any())
                .paths(PathSelectors.any())
                .build()

                // 支持的通讯协议集合
                .protocols(newHashSet("https", "http"))

                // 授权信息设置，必要的header token等认证信息
                .securitySchemes(securitySchemes())

                // 授权信息全局应用
                .securityContexts(securityContexts());
    }

    /**
     * API 页面上半部分展示信息
     */
    private ApiInfo apiInfo() {
        return new ApiInfoBuilder().title(swaggerProperties.getApplicationName() + " Api Doc")
                .description(swaggerProperties.getApplicationDescription())
                .contact(new Contact("lighter", null, "123456@gmail.com"))
                .version("Application Version: " + swaggerProperties.getApplicationVersion() + ", Spring Boot Version: " + SpringBootVersion.getVersion())
                .build();
    }

    /**
     * 设置授权信息
     */
    private List<SecurityScheme> securitySchemes() {
        ApiKey apiKey = new ApiKey("BASE_TOKEN", "token", In.HEADER.toValue());
        return Collections.singletonList(apiKey);
    }

    /**
     * 授权信息全局应用
     */
    private List<SecurityContext> securityContexts() {
        return Collections.singletonList(
                SecurityContext.builder()
                        .securityReferences(Collections.singletonList(new SecurityReference("BASE_TOKEN", new AuthorizationScope[]{new AuthorizationScope("global", "")})))
                        .build()
        );
    }

    @SafeVarargs
    private final <T> Set<T> newHashSet(T... ts) {
        if (ts.length > 0) {
            return new LinkedHashSet<>(Arrays.asList(ts));
        }
        return null;
    }

    /**
     * 通用拦截器排除swagger设置，所有拦截器都会自动加swagger相关的资源排除信息
     */
    @SuppressWarnings("unchecked")
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        try {
            Field registrationsField = FieldUtils.getField(InterceptorRegistry.class, "registrations", true);
            List<InterceptorRegistration> registrations = (List<InterceptorRegistration>) ReflectionUtils.getField(registrationsField, registry);
            if (registrations != null) {
                for (InterceptorRegistration interceptorRegistration : registrations) {
                    interceptorRegistration
                            .excludePathPatterns("/swagger**/**")
                            .excludePathPatterns("/webjars/**")
                            .excludePathPatterns("/v3/**")
                            .excludePathPatterns("/doc.html");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

常用注解说明

@Api：用在controller类，描述API接口

@ApiOperation：描述接口方法

@ApiModel：描述对象

@ApiModelProperty：描述对象属性

@ApiImplicitParams：描述接口参数

@ApiResponses：描述接口响应

@ApiIgnore：忽略接口方法

注意：本文归作者所有，未经作者允许，不得转载