SpringBoot整合Swagger生成API文档

我会带着你远行 2022-03-08 07:55 494阅读 0赞

# 方式一 #

**1.依赖**

<dependency>
    	<groupId>io.springfox</groupId>
    	<artifactId>springfox-swagger2</artifactId>
    	<version>2.8.0</version>
    </dependency>
    <dependency>
    	<groupId>io.springfox</groupId>
    	<artifactId>springfox-swagger-ui</artifactId>
    	<version>2.8.0</version>
    </dependency>

**2.配置**

package com.yuyi.config;
    
    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;
    /**
     * @EnableSwagger2 开启swagger2功能
     */
    @Configuration
    @EnableSwagger2
    public class SwaggerConfig {
    
    	@Bean
    	public Docket createRestApi() {
    		return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select()
    				// api扫包范围
    				.apis(RequestHandlerSelectors.basePackage("com.yuyi.api")).paths(PathSelectors.any()).build();
    	}
    	//创建api文档信息
    	/**
    	 * title 	       文档标题
    	 * description 文档描述
    	 */
    	private ApiInfo apiInfo() {
    		return new ApiInfoBuilder().title("AkiraNicky").description("欢迎来到我的博客")
    				.termsOfServiceUrl("https://blog.csdn.net/AkiraNicky")
    				// .contact(contact)
    				.version("1.0").build();
    	}
    }

**3.实现**

@Api("SwaggerDemo控制器")
    @RestController
    public class SwaggerController {
    
    	@ApiOperation("Swagger演示接口")
    	@GetMapping("/swaggerIndex")
    	public String swaggerIndex(){
    		System.out.println("swaggerIndex");
    		return "swaggerIndex";
    	}
    	
    	@ApiOperation("单参数")
    	@ApiImplicitParam(name="userName",value="用户信息参数",required=true,dataType="String")
    	@PostMapping("/getMember")
    	public ResultBO<?> getMember(String userName){
    		return ResultTool.success(userName);
    	}
    
        @ApiOperation("测试多参数")
    	@ApiResponses({ @ApiResponse(code = 200, message = "操作成功"),
            @ApiResponse(code = 101, message = "查询内容为空"),
            @ApiResponse(code = 102, message = "付款失败（微信支付）") })
    	@ApiImplicitParams({
    		 @ApiImplicitParam(name="userName",value="用户名",required=true,dataType="String"),
    		 @ApiImplicitParam(name="age",value="年龄",required=true,dataType="int")
    	})
    	@PostMapping("/testA")
    	public ResultBO<?> testA(String userName,Integer age){
    		Map<String,Object> map = new HashMap<>();
    		map.put("user_name", userName);
    		map.put("age", age);
    		if(age == 11){
    			return ResultTool.error(ZBExceptionEnum.EXCEPTION_NULL);
    		}
    		return ResultTool.success(map);
    	}
    	
    	/***
    	 * Swagger2自带调用方式，用不到postman
    	 * http://localhost:9090/swagger-ui.html#/swagger-controller  //9090为application.yml配的server.port
    	 * 
    	 */
    }

**4.启动项目，访问[http://localhost:9090/swagger-ui.html][http_localhost_9090_swagger-ui.html]**

** **其中9090为项目的端口号，后面的地址为swagger的ui界面

**5.Swagger使用的注解及其说明：**

**[@Api][Api]**：用在类上，说明该类的作用

**@ApiOperation**：注解来给API增加方法说明

**@ApiImplicitParams **: 一组参数说明

**@ApiImplicitParam**：单个参数说明

**@ApiResponses**：展示给前端的响应信息

**@ApiResponse**：用在@ApiResponses中，一般用于表达一个错误的响应信息

**code**：数字，例如400

**message**：信息，例如"请求参数没填好"

**response**：抛出异常的类 ，一般用不到该参数

**@ApiModel**：描述一个Model的信息（一般用在请求参数无法使用@ApiImplicitParam注解进行描述的时候）

**@ApiModelProperty**：描述一个model的属性

#    方式二 #

这里介绍一个相当牛逼的工具，来自spring4all.com社区开源的[swagger-spring-boot-starter][]。接下来我们就用这个依赖包开发swagger 文档。

**1. 首先我 这里是个springcloud项目，在接口服务里引入以下依赖（springboot用的2.0.1版本，引入swagger1.8.0会报错）：**

<dependency>
        <groupId>com.spring4all</groupId>
        <artifactId>swagger-spring-boot-starter</artifactId>
        <version>1.7.0.RELEASE</version>
    </dependency>

**2. 摒弃上面的SwaggerConfig配置，****直接在application.yml进行配置：**

swagger:
      base-package: com.yuyi.controller
      title: SpringCloud2.x构建微服务电商项目-会员服务接口
      description: 基于SpringBoot+SpringCloud+Swagger+Docker+ELK+Kafka+Redis+RabbitMQ构建一套微服务电商项目
      version: 1.0.1
      terms-of-service-url: https://blog.csdn.net/AkiraNicky
      contact:
        name: bin
        email: 756840349@qq.com

**3. 启动类添加注解：****@EnableSwagger2Doc**

**4.接下来就可以进行swagger自动生成api文档了，用法和上面的方式相同**

@Api(tags = "微信服务接口")
    public interface WxApi {
        @ApiOperation(value = "获取wx基本信息")
        @GetMapping("/getWx")
        WxDO getWx();
    }

# 方式三 （SpringCloud项目） #

SpringCloud整合到Zuul网关可以进行做Swagger的统一管理

前提：每一个服务都得配方式二中的application.yml配置

**1. 依赖（swagger 的依赖直接放在api接口中即可，不必放在实现里，并且@Api等注解统一写在api接口中）**

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>
    
    
    <dependency>
        <groupId>com.spring4all</groupId>
        <artifactId>swagger-spring-boot-starter</artifactId>
        <version>1.7.0.RELEASE</version>
    </dependency>

**2. application.yml配置**

zuul:
      routes:
        api-a:
          path: /api-wx/**
          serviceId: shop-wx
        api-order:
          path: /api-member/**
          serviceId: shop-member

**3. ZuulApplication启动类**

package com.yuyi;
    
    import com.spring4all.swagger.EnableSwagger2Doc;
    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 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;
    
    @SpringBootApplication
    @EnableEurekaClient
    @EnableSwagger2Doc
    @EnableZuulProxy
    public class ZuulApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(ZuulApplication.class, args);
        }
    
        @Component
        @Primary
        class DocumentationConfig implements SwaggerResourcesProvider{
            public List<SwaggerResource> get(){
                List resources = new ArrayList<>();
                // 网关使用服务别名获取远程服务的SwaggerAPI
                // shop-wx可以随便写，/shop-wx/v2/api-docs必须以服务名开头
                resources.add(swaggerResource("shop-wx", "/shop-wx/v2/api-docs", "2.0"));
                resources.add(swaggerResource("shop-member", "/shop-member/v2/api-docs", "2.0"));
                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;
            }
        }
    
    }

访问：[http://localhost/swagger-ui.html][http_localhost_swagger-ui.html]，其中zuul端口号为80，即访问zuul的swagger：

![2019080222363648.png][]、

注意：通过zuul进行swagger管理，访问的接口为zuul反向代理生成的地址：

![20190802223327890.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FraXJhTmlja3k_size_16_color_FFFFFF_t_70][]

[http_localhost_9090_swagger-ui.html]: http://localhost:9090/swagger-ui.html
[Api]: https://my.oschina.net/u/2396174
[swagger-spring-boot-starter]: https://github.com/SpringForAll/spring-boot-starter-swagger
[http_localhost_swagger-ui.html]: http://localhost/swagger-ui.html
[2019080222363648.png]: /images/20220308/4c480ac069f943399cc3eeb102883938.png
[20190802223327890.png]: /images/20220308/19bbaf0e719742dbb3835e6ab31f3e6a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FraXJhTmlja3k_size_16_color_FFFFFF_t_70]: /images/20220308/f8418c7d68474bf184b48e59d8a8443a.png