为spring boot 写的Controller中的rest接口配置swagger

1.pom.xml文件中加入下列依赖：

<dependency>
   <groupId>io.springfox</groupId>
   <artifactId>springfox-swagger2</artifactId>
   <version>2.6.1</version>
</dependency>

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>2.6.1</version>
</dependency>
2.创建一个Swagger2类：

//对swagger的配置
@Configuration
@EnableSwagger2
public class Swagger2 {
    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.example.demo"))//扫描接口的包
                .paths(PathSelectors.regex("/rest/.*"))//被文档展示的接口的地址，这里只展示rest/地址下的
                .build();
    }

    public ApiInfo apiInfo(){
        return new ApiInfoBuilder()
                .title("spring boot利用swagger构建api文档")
                .description("简单优雅的rest风格")
                .termsOfServiceUrl("http://www.maycpou.com")//文档遵循的开发协议的展现网址
                .version("1.0")//版本
                .build();
    }
}
3.启动项目后访问http://localhost:8888/swagger-ui.html
4.针对swagger2中还有很多的注解写在接口或者传入传出参数上面，来添加在swagger文档界面增加对该接口或者参数的说明如：
接口方法：

 @ApiOperation(value = "添加文章",notes = "添加新的文章",tags = "Article",httpMethod = "POST")//方法的swagger注释
//    @ApiImplicitParams({
//            @ApiImplicitParam(name = "id" ,value = "文章Id",required = true,dataType = "String"),
//            @ApiImplicitParam(name = "name" ,value = "文章名称",required = true,dataType = "String"),
//    })//这个注解是针对请求参数是@RequestParam方式的时候，可以给每个参数添加swagger文档上的注释
    @ApiResponses({//方法返回值的swagger注释
            @ApiResponse(code = 200,message = "成功",response = AjaxResponse.class),
            @ApiResponse(code = 400,message = "用户输入错误",response = AjaxResponse.class),
            @ApiResponse(code = 500,message = "系统内部错误",response = AjaxResponse.class)
    })
    @RequestMapping(value = "/article", method = RequestMethod.POST,produces = "application/json")
    //上面的注解等同于@PostMapping("/article")
    public AjaxResponse saveArticle(@RequestBody Article article){//使用@RequestBody的方式接收参数，可以自动的将传入的json转化装配为对象
                                    //如果使用@RequestParam的方式接受参数就要将Article对象里面的字段全部写在传入参数中
        log.info("saveArticle:{}",article);
        return AjaxResponse.success();
    }

传出参数：

@Data
@ApiModel//用于swagger的接口返回实体
public class AjaxResponse {
    @ApiModelProperty("是否成功")//swagger中显示的返回字段的注释
    private boolean isok;
    private int code;
    private String message;
    private Object data;
    private AjaxResponse(){

    }

    public static AjaxResponse success(){
        AjaxResponse resultBean = new AjaxResponse();
        resultBean.setIsok(true);
        resultBean.setCode(200);
        resultBean.setMessage("success");
        return resultBean;
    }

    public static AjaxResponse success(Object data){
        AjaxResponse resultBean = new AjaxResponse();
        resultBean.setIsok(true);
        resultBean.setCode(200);
        resultBean.setMessage("success");
        resultBean.setData(data);
        return resultBean;
    }
}