微服务下整合knife4j接口文档

前言:本文旨在解决微服务下通过网关访问所用服务的knife4j文档，无需再通过其他服务单独访问

功能模块配置：

1.配置类：

在这个文件中注意下basePackage的扫描路径，修改为对应controller下的路径。

@Configuration
@EnableSwagger2WebMvc
public class SwaggerConfiguration {
 
    @Bean
    public Docket getDocket() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(getApiInfoBuilder())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.example.micorder.controller"))
                .paths(PathSelectors.any())
                .build();
    }
 
    private ApiInfo getApiInfoBuilder() {
        return new ApiInfoBuilder()
                .title("Knife4j-mic-order文档")
                .description("
swagger-bootstrap-ui-demo RESTful APIs
")
                .termsOfServiceUrl("服务url")
                .contact(new Contact("xxx", "url", "xxx@qq.com"))
                .version("1.0")
                .build();
    }
}

2.pom.xml

 "1.0" encoding="UTF-8"?>
"http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0
 
    
        com.example
        microservices
        0.0.1-SNAPSHOT
    
 
    mic-elasticsearch
    0.0.1-SNAPSHOT
    mic-elasticsearch
    Demo project for Spring Boot
 
    
        
            org.springframework.boot
            spring-boot-starter-web
        
 
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
 
        
        
            com.github.xiaoymin
            knife4j-micro-spring-boot-starter
            ${knife4j.version}
        
 
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
        
 
    
 
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    
 

3.配置

# https://doc.xiaominfo.com/knife4j
knife4j:
  # 开启增强配置
  enable: true
  # 是否开启生产环境屏蔽   true:关闭swagger，false:开启swagger
  production: false
  basic:
    # 是否开启认证
    enable: false
    # Basic认证用户名
    username: admin
    # Basic认证密码
    password: 123456
spring:
  application:
    name: test-knife4j

网关模块

1.配置类

SwaggerResourceConfig

@Slf4j
@Component
@Primary
@AllArgsConstructor
public class SwaggerResourceConfig implements SwaggerResourcesProvider {
 
    private final RouteLocator routeLocator;
 
    private final GatewayProperties gatewayProperties;
 
 
    @Override
    public List get() {
        List resources = new ArrayList<>();
 
        List routes = new ArrayList<>();
 
        routeLocator.getRoutes().subscribe(route -> routes.add(route.getId()));
 
        gatewayProperties.getRoutes().stream().filter(routeDefinition -> routes.contains(routeDefinition.getId())).forEach(route -> {
            route.getPredicates().stream()
                    .filter(predicateDefinition -> ("Path").equalsIgnoreCase(predicateDefinition.getName()))
                    .forEach(predicateDefinition -> resources.add(swaggerResource(route.getId(),
                            predicateDefinition.getArgs().get(NameUtils.GENERATED_NAME_PREFIX + "0")
                                    .replace("**", "v2/api-docs"))));
        });
 
        return resources;
    }
 
    private SwaggerResource swaggerResource(String name, String location) {
        log.info("name:{},location:{}", name, location);
        SwaggerResource swaggerResource = new SwaggerResource();
        swaggerResource.setName(name);
        swaggerResource.setLocation(location);
        swaggerResource.setSwaggerVersion("2.0");
        return swaggerResource;
    }
}

SwaggerHandler

@RestController
public class SwaggerHandler {
 
    @Autowired(required = false)
    private SecurityConfiguration securityConfiguration;
 
    @Autowired(required = false)
    private UiConfiguration uiConfiguration;
 
    private final SwaggerResourcesProvider swaggerResources;
 
    @Autowired
    public SwaggerHandler(SwaggerResourcesProvider swaggerResources) {
        this.swaggerResources = swaggerResources;
    }
 
    @GetMapping("/swagger-resources/configuration/security")
    public Mono> securityConfiguration() {
        return Mono.just(new ResponseEntity<>(
                Optional.ofNullable(securityConfiguration).orElse(SecurityConfigurationBuilder.builder().build()), HttpStatus.OK));
    }
 
    @GetMapping("/swagger-resources/configuration/ui")
    public Mono> uiConfiguration() {
        return Mono.just(new ResponseEntity<>(
                Optional.ofNullable(uiConfiguration).orElse(UiConfigurationBuilder.builder().build()), HttpStatus.OK));
    }
 
    @GetMapping("/swagger-resources")
    public Mono swaggerResources() {
        return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));
    }
}

网关模块配置文件如下

server:
  port: 5000
spring:
  application:
    name: gateway
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
        group: microservices
    gateway:
      routes:
        - id: elasticsearch
          uri: lb://elasticsearch
          predicates:
            - Path=/elasticsearch/**
          filters:
            - StripPrefix=1

pom

"1.0" encoding="UTF-8"?>
"http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0
 
    
        com.example
        microservices
        0.0.1-SNAPSHOT
    
 
    mic-gateway
    0.0.1-SNAPSHOT
    mic-gateway
    网关模块
 
    
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
        
        
            org.springframework.cloud
            spring-cloud-starter-gateway
        
        
            org.springframework.cloud
            spring-cloud-starter-loadbalancer
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
        
            org.projectlombok
            lombok
            1.18.22
            provided
        
 
        
        
            com.github.xiaoymin
            knife4j-spring-boot-starter
            3.0.3
        
    
 
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    
 
 

nacos中模块是否在同一分组下以及是否注册。

访问下边的路径即可 

 http://localhost:5000/doc.html