spring cloud 学习(10) - 利用springfox集成swagger

对绝大多数程序员而言，写接口文档是一件痛苦的事情，相对文档，他们更愿意写代码。最理想的情况就是：代码即文档！服务开发完成后，部署上去文档就自动生成，没错，这就是springfox + swagger要解决的问题！

swagger号称 THE WORLD'S MOST POPULAR API TOOLING。但swagger默认情况下，仍要单独部署，程序员还是要跑到一个单独的web页面上编辑，写一堆yaml文档，依然不爽。

github上有一个springfox项目，可以在开发rest服务时，只要加一些注解，就自动生成swagger-ui界面，以及相关的文档，而且可以跟spring-boot/spring-cloud无缝集成。

步骤：

一、添加依赖项

    dependencies {
        ...
        compile "io.springfox:springfox-swagger2:2.7.0"
        compile "io.springfox:springfox-swagger-ui:2.7.0"
        ...
    }

　　

二、添加swagger配置类

 1 package cn.mwee.order.cloud.service.express.config;
 2 
 3 import org.springframework.context.annotation.Bean;
 4 import org.springframework.context.annotation.Configuration;
 5 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 6 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 7 import springfox.documentation.builders.ApiInfoBuilder;
 8 import springfox.documentation.builders.PathSelectors;
 9 import springfox.documentation.builders.RequestHandlerSelectors;
10 import springfox.documentation.service.ApiInfo;
11 import springfox.documentation.service.Contact;
12 import springfox.documentation.spi.DocumentationType;
13 import springfox.documentation.spring.web.plugins.Docket;
14 import springfox.documentation.swagger2.annotations.EnableSwagger2;
15 
16 /**
17  * Created by yangjunming on 13/10/2017.
18  */
19 @Configuration
20 @EnableSwagger2
21 public class SwaggerConfig {
22 
23     @Bean
24     public Docket createRestApi() {
25         return new Docket(DocumentationType.SWAGGER_2)
26                 .apiInfo(apiInfo())
27                 .select()
28                 .apis(RequestHandlerSelectors.basePackage("xxx.controller")) //Controller所在的package
29                 .paths(PathSelectors.any())
30                 .build();
31     }
32 
33     @Bean
34     public WebMvcConfigurerAdapter addResourceHandlers() {
35         return new WebMvcConfigurerAdapter() {
36             @Override
37             public void addResourceHandlers(ResourceHandlerRegistry registry) {
38                 registry.addResourceHandler("swagger-ui.html")
39                         .addResourceLocations("classpath:/META-INF/resources/");
40                 registry.addResourceHandler("/webjars/**")
41                         .addResourceLocations("classpath:/META-INF/resources/webjars/");
42             }
43         };
44     }
45 
46     private ApiInfo apiInfo() {
47         return new ApiInfoBuilder()
48                 .title("express-service online api document")
49                 .description("某某服务") 
50                 .contact(new Contact("作者名字", "http://作者介绍网址", "作者@邮箱.com"))
51                 .version("1.0.0") //显示版本号
52                 .build();
53     }
54 }

View Code

 

三、在Controller上添加注解

 1 package cn.mwee.order.cloud.service.express.controller;
 2 
 3 import cn.mwee.order.cloud.admin.common.controller.AbstractController;
 4 import cn.mwee.order.cloud.admin.service.dto.common.DataResult;
 5 import cn.mwee.order.cloud.admin.service.dto.express.sf.*;
 6 import cn.mwee.order.cloud.admin.service.express.SFExpressService;
 7 import io.swagger.annotations.Api;
 8 import io.swagger.annotations.ApiOperation;
 9 import org.springframework.beans.factory.annotation.Autowired;
10 import org.springframework.cloud.context.config.annotation.RefreshScope;
11 import org.springframework.web.bind.annotation.PostMapping;
12 import org.springframework.web.bind.annotation.RequestBody;
13 import org.springframework.web.bind.annotation.RequestMapping;
14 import org.springframework.web.bind.annotation.RestController;
15 
16 import javax.servlet.http.HttpServletRequest;
17 
18 /**
19  * Created by 菩提树下的杨过(http://yjmyzz.cnblogs.com/) on 2017/7/18.
20  */
21 @RestController
22 @RefreshScope
23 @RequestMapping("/sf")
24 @Api(consumes = "application/json",
25         produces = "application/json",
26         protocols = "http",
27         basePath = "/sf", value = "顺丰对接服务")
28 public class SFController extends AbstractController {
29 
30     ...
31 
32     @ApiOperation(value = "下单", tags = "顺丰速运")
33     @PostMapping(value = "submitOrder")
34     public DataResult submitOrder(@RequestBody SFSubmitOrderRequest request) throws Exception {
35         return ...;
36     }
37 
38     ...
39 
40 }

View Code

注意上面几处带@Api开头的注解

 

四、参数实体上添加注解

 1 package cn.mwee.order.cloud.admin.service.dto.express.sf;
 2 
 3 import cn.mwee.order.cloud.admin.service.dto.express.ExpressBaseOrder;
 4 import cn.mwee.order.common.utils.date.DateUtil;
 5 import com.alibaba.fastjson.annotation.JSONField;
 6 import io.swagger.annotations.ApiModel;
 7 import io.swagger.annotations.ApiModelProperty;
 8 import lombok.Data;
 9 import lombok.EqualsAndHashCode;
10 
11 import java.util.ArrayList;
12 import java.util.Date;
13 import java.util.List;
14 
15 /**
16  * 顺丰的物流订单
17  * Created by 菩提树下的杨过(http://yjmyzz.cnblogs.com/) on 26/09/2017.
18  */
19 @Data
20 @EqualsAndHashCode(callSuper = false)
21 @ApiModel(description = "顺丰-提交订单参数")
22 public class SFSubmitOrderRequest extends ExpressBaseOrder {
23 
24     @ApiModelProperty(value = "商家编码(顺丰分配提供)", required = true, dataType = "String", example = "A001")
25     private String clientCode; //商家编码，为顺丰分配提供
26 
27     ...
28 }

View Code

还是注意上面几处带@Api开头的注解，一看就懂。

 

启动后，就可以用 http://xxxx.xxxx:port/swagger-ui.html访问了

随便点开一个方法，比如cancelOrder

还可以直接调用REST(相当于postman之类的rest服务测试工具了）