SpringBoot集成Knife4j

Knife4j简介

Knife4j 官网地址：https://doc.xiaominfo.com/

knife4j 是为Java MVC框架集成Swagger生成Api文档的增强解决方案。

Knife4j 的前身是swagger-bootstrap-ui，是一个纯swagger-ui的ui皮肤项目。

取名knife4j是希望她能像一把匕首一样小巧、轻量，并且功能强悍，更名也是希望把她做成一个为Swagger接口文档服务的通用性解决方案，不仅仅只是专注于前端Ui前端。

引入依赖

<dependency>
    <groupId>com.github.xiaoymin</groupId>
    <artifactId>knife4j-spring-boot-starter</artifactId>
    <version>3.0.3</version>
</dependency>

添加yml配置

knife4j:
  # 是否开启Swagger
  enabled: true
  # 请求前缀
  pathMapping: /dev-api
  # 是否开启Knife4j增强模式,默认是 false
  enable: true

查看更多增强模式配置：https://doc.xiaominfo.com/docs/features/enhance

配置Knife4j

@Configuration
@EnableKnife4j
public class Knife4jConfig
{

    /** 是否开启Swagger */
    @Value("${knife4j.enabled}")
    private boolean enabled;

    /** 设置请求的统一前缀 */
    @Value("${knife4j.pathMapping}")
    private String pathMapping;

    /**
     * 创建API
     */
    @Bean
    public Docket createRestApi()
    {
        return new Docket(DocumentationType.OAS_30)
                // 是否启用Swagger
                .enable(enabled)
                // 用来创建该API的基本信息，展示在文档的页面中（自定义展示的信息）
                .apiInfo(apiInfo())
                // 分组名称
                .groupName("China")
                // 设置哪些接口暴露给Swagger展示
                .select()
                // 扫描所有有注解的api，用这种方式更灵活
                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                // 扫描指定包中的swagger注解
                // .apis(RequestHandlerSelectors.basePackage("com.cn.project.tool.swagger"))
                // 扫描所有 .apis(RequestHandlerSelectors.any())
                .paths(PathSelectors.any())
                .build()
                /* 设置安全模式，swagger可以设置访问token */
                // .securitySchemes(securitySchemes())
                .securityContexts(securityContexts())
                .pathMapping(pathMapping);
    }

    /**
     * 安全模式，这里指定token通过Authorization头请求头传递
     */
    private List<SecurityScheme> securitySchemes()
    {
        List<SecurityScheme> apiKeyList = new ArrayList<SecurityScheme>();
        apiKeyList.add(new ApiKey("Authorization", "Authorization", In.HEADER.toValue()));
        return apiKeyList;
    }

    /**
     * 安全上下文
     */
    private List<SecurityContext> securityContexts()
    {
        List<SecurityContext> securityContexts = new ArrayList<>();
        securityContexts.add(
                SecurityContext.builder()
                        .securityReferences(defaultAuth())
                        .operationSelector(o -> o.requestMappingPattern().matches("/.*"))
                        .build());
        return securityContexts;
    }

    /**
     * 默认的安全上引用
     */
    private List<SecurityReference> defaultAuth()
    {
        AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
        AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
        authorizationScopes[0] = authorizationScope;
        List<SecurityReference> securityReferences = new ArrayList<>();
        securityReferences.add(new SecurityReference("Authorization", authorizationScopes));
        return securityReferences;
    }

    /**
     * 添加摘要信息
     */
    private ApiInfo apiInfo()
    {
        // 用ApiInfoBuilder进行定制
        return new ApiInfoBuilder()
                // 设置标题
                .title("后台管理系统_接口文档")
                // 描述
                .description("用于XXX,具体包括XXX,XXX模块...")
                // 作者信息
                .contact(new Contact("hviger", null, null))
                // 版本
                .version("1.0.1")
                .build();
    }
}

放行Knife4j请求

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
    }
}

使用Knife4j注解标记接口

@Api(tags = "测试路由")
@RestController
@RequestMapping("/test")
public class TestController {

    @ApiOperation("测试get")
    @ApiImplicitParam(name = "name", value = "姓名", required = true)
    @GetMapping("test1")
    public String test1(@RequestParam(value = "name") String name) {
        return "hello," + name;
    }

    @ApiOperation("测试post")
    @PostMapping("test2")
    public String test2(@RequestBody TestEntity testEntity) {
        return testEntity.getName() + ":" + testEntity.getSex();
    }
}

@ApiModel
@Data
public class TestEntity {

    @ApiModelProperty(value = "姓名", required = true)
    private String name;
    @ApiModelProperty(value = "性别", required = true)
    private String sex;
}

访问页面

访问地址：http://localhost:8080/doc.html