手写Api文档的几个痛点

1. 文档需要更新的时候，需要再次发送一份给前端，也就是文档更新交流不及时。
2. 接口返回结果不明确
3. 不能直接在线测试接口，通常需要使用工具，比如postman
4. 接口文档太多，不好管理

1 springcloud快速集成

以user-demo为例

1.1 pom文件

        <dependency>
            <groupId>com.spring4all</groupId>
            <artifactId>swagger-spring-boot-starter</artifactId>
            <version>1.9.0.RELEASE</version>
        </dependency>

1.2 修改启动类

添加注解@EnableSwagger2

@SpringBootApplication
// 开启eureka的客户端注解
@EnableEurekaClient
@EnableSwagger2
public class UserApp {
    public static void main(String[] args) {
        SpringApplication.run(UserApp.class, args);
    }
}

1.3 添加配置文件

package com.study.Config;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.study.controller"))
                .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("用户系统api")
                .description("用户系统接口文档说明")
                .contact(new springfox.documentation.service.Contact("博主很帅",
                        "https://blog.csdn.net/u013938578?type=lately", "roc.xiong@hotmail.com"))
                .version("1.0")
                .build();
    }
}

1.4 测试地址

http://localhost:8863/swagger-ui.html

2 zuul网关中整合Swagger2

2.1 pom文件

        <dependency>
            <groupId>com.spring4all</groupId>
            <artifactId>swagger-spring-boot-starter</artifactId>
            <version>1.9.0.RELEASE</version>
        </dependency>

2.2 添加配置文件

package com.study.Config;

import org.springframework.cloud.netflix.zuul.filters.RouteLocator;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Component;
import springfox.documentation.swagger.web.SwaggerResource;
import springfox.documentation.swagger.web.SwaggerResourcesProvider;

import java.util.ArrayList;
import java.util.List;

@Component
@Primary
public class DocumentationConfig implements SwaggerResourcesProvider {
    private final RouteLocator routeLocator;

    public DocumentationConfig(RouteLocator routeLocator) {
        this.routeLocator = routeLocator;
    }

    @Override
    public List<SwaggerResource> get() {
        List resources = new ArrayList<>();
//        resources.add(swaggerResource("订单系统", "/api-order/v2/api-docs", "1.0"));
        resources.add(swaggerResource("用户系统", "/api-user/v2/api-docs", "1.0"));
        return resources;
    }

    private SwaggerResource swaggerResource(String name, String location, String
            version) {
        SwaggerResource swaggerResource = new SwaggerResource();
        swaggerResource.setName(name);
        swaggerResource.setLocation(location);
        swaggerResource.setSwaggerVersion(version);
        return swaggerResource;
    }
}

2.3 启动类修改

package com.study;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
// 开启zuul功能
@EnableZuulProxy
@EnableEurekaClient
@EnableSwagger2
public class ZuulApp {
    public static void main(String[] args) {
        SpringApplication.run(ZuulApp.class, args);
    }
}

2.4 测试地址

http://localhost:9000/swagger-ui.html

相关demo:

https://download.csdn.net/download/u013938578/87394355