SpringBoot系列——Swagger2之Swagger UI，API实时接口文档

　　前言

　　Swagger UI是可视化实时API文档，按照规范写好接口代码后，直接实时查看、测试API，无需再单独编写API文档，省时省力

　　Swagger UI官网：https://swagger.io/tools/swagger-ui/

　　Swagger UI官方GitHub：https://github.com/swagger-api/swagger-ui

　　引入依赖

　　在pom文件引入最新版依赖

        <!-- Swagger UI API接口-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>

　　编写代码

　　项目结构

　　Swagger UI 配置信息

/**
 * Swagger UI 配置信息
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig {
    /**
     * 添加摘要信息(Docket)
     */
    @Bean
    public Docket controllerApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(new ApiInfoBuilder()
                        .title("API实时接口文档")
                        .description("用于实时查看、测试API")
                        .contact(new Contact("huanzi-qch", "https://www.cnblogs.com/huanzi-qch/", ""))
                        .version("版本号:1.0")
                        .build())
                .select()
                //API基础扫描路径
                .apis(RequestHandlerSelectors.basePackage("cn.huanzi.qch.springbootswagger2.controller"))
                .paths(PathSelectors.any())
                .build();
    }
}

　　Vo对象与controller

@Data
@ApiModel(description = "User实体Vo")
public class UserVo {
    @ApiModelProperty("用户id")
    private Integer id;

    @ApiModelProperty("用户名称")
    private String userName;
}

@RestController
@RequestMapping("user")
@Api(tags="user模块")
public class UserController {

    @ApiOperation(value = "根据id查询用户信息", notes = "查询数据库中某个的用户信息")
    @ApiImplicitParam(name = "id", value = "用户ID", paramType = "path", required = true)
    @GetMapping("get/{id}")
    public String getUserById(@PathVariable int id) {
        if(id == 0){
            return "查无此人";
        }else{
            return "{\"id\":\""+id+"\",\"userName\":\"张三\"}";
        }
    }

    @ApiOperation(value = "根据UserVo对象查询用户信息", notes = "查询数据库中符合条件的用户信息")
    @ApiImplicitParam(name = "userVo", value = "UserVo对象", paramType = "UserVo")
    @PostMapping("list")
    public String getUserByUser(UserVo userVo) {
        if(userVo.getId() == 0){
            return "查无此人";
        }else{
            return userVo.toString();
        }
    }

}

　　启动类加入@EnableSwagger2注解

@EnableSwagger2
@SpringBootApplication
public class SpringbootSwagger2Application {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootSwagger2Application.class, args);
    }

}