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  • (转)第十一篇:springboot集成swagger2,构建优雅的Restful API

      声明:本部分内容均转自于方志明博友的博客,因为本人很喜欢他的博客,所以一直在学习,转载仅是记录和分享,若也有喜欢的人的话,可以去他的博客首页看:http://blog.csdn.net/forezp/article/details/71023536

      

      swagger,中文“拽”的意思。它是一个功能强大的api框架,它的集成非常简单,不仅提供了在线文档的查阅,而且还提供了在线文档的测试。另外swagger很容易构建restful风格的api,简单优雅帅气,正如它的名字。

    一、引入依赖

        <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>

    二、写配置类

    @Configuration
    @EnableSwagger2
    public class Swagger2 {
    
        @Bean
        public Docket createRestApi() {
            return new Docket(DocumentationType.SWAGGER_2)
                    .apiInfo(apiInfo())
                    .select()
                    .apis(RequestHandlerSelectors.basePackage("com.forezp.controller"))
                    .paths(PathSelectors.any())
                    .build();
        }
        private ApiInfo apiInfo() {
            return new ApiInfoBuilder()
                    .title("springboot利用swagger构建api文档")
                    .description("简单优雅的restfun风格,http://blog.csdn.net/forezp")
                    .termsOfServiceUrl("http://blog.csdn.net/forezp")
                    .version("1.0")
                    .build();
        }
    }

      通过@Configuration注解,表明它是一个配置类,@EnableSwagger2开启swagger2。apiINfo()配置一些基本的信息。apis()指定扫描的包会生成文档。

    三、写生成文档的注解

      swagger通过注解表明该接口会生成文档,包括接口名、请求方法、参数、返回信息的等等。

      (1)@Api:修饰整个类,描述Controller的作用

      (2)@ApiOperation描述一个类的一个方法,或者说一个接口

      (3)@ApiParam:单个参数描述

      (4)@ApiModel:用对象来接收参数

      (5)@ApiProperty:用对象接收参数时,描述对象的一个字段

      (6)@ApiResponse:HTTP响应其中1个描述

      (7)@ApiResponses:HTTP响应整体描述

      (8)@ApiIgnore:使用该注解忽略这个API

      (9)@ApiError :发生错误返回的信息

      (10)@ApiParamImplicitL:一个请求参数

      (11)@ApiParamsImplicit: 多个请求参数

      现在通过一个栗子来说明:

    package com.forezp.controller;
    
    import com.forezp.entity.Book;
    import io.swagger.annotations.ApiImplicitParam;
    import io.swagger.annotations.ApiImplicitParams;
    import io.swagger.annotations.ApiOperation;
    import org.springframework.ui.ModelMap;
    import org.springframework.web.bind.annotation.*;
    import springfox.documentation.annotations.ApiIgnore;
    
    import java.util.*;
    
    /**
     * 用户创建某本图书 POST    /books/
     * 用户修改对某本图书    PUT /books/:id/
     * 用户删除对某本图书    DELETE  /books/:id/
     * 用户获取所有的图书 GET /books
     *  用户获取某一图书  GET /Books/:id
     * Created by fangzhipeng on 2017/4/17.
     * 官方文档:http://swagger.io/docs/specification/api-host-and-base-path/
     */
    @RestController
    @RequestMapping(value = "/books")
    public class BookContrller {
    
        Map<Long, Book> books = Collections.synchronizedMap(new HashMap<Long, Book>());
    
        @ApiOperation(value="获取图书列表", notes="获取图书列表")
        @RequestMapping(value={""}, method= RequestMethod.GET)
        public List<Book> getBook() {
            List<Book> book = new ArrayList<>(books.values());
            return book;
        }
    
        @ApiOperation(value="创建图书", notes="创建图书")
        @ApiImplicitParam(name = "book", value = "图书详细实体", required = true, dataType = "Book")
        @RequestMapping(value="", method=RequestMethod.POST)
        public String postBook(@RequestBody Book book) {
            books.put(book.getId(), book);
            return "success";
        }
    @ApiOperation(value
    ="获图书细信息", notes="根据url的id来获取详细信息") @ApiImplicitParam(name = "id", value = "ID", required = true, dataType = "Long",paramType = "path") @RequestMapping(value="/{id}", method=RequestMethod.GET) public Book getBook(@PathVariable Long id) { return books.get(id); } @ApiOperation(value="更新信息", notes="根据url的id来指定更新图书信息") @ApiImplicitParams({ @ApiImplicitParam(name = "id", value = "图书ID", required = true, dataType = "Long",paramType = "path"), @ApiImplicitParam(name = "book", value = "图书实体book", required = true, dataType = "Book") })
    @RequestMapping(value
    ="/{id}", method= RequestMethod.PUT) public String putUser(@PathVariable Long id, @RequestBody Book book) { Book book1 = books.get(id); book1.setName(book.getName()); book1.setPrice(book.getPrice()); books.put(id, book1); return "success"; }
    @ApiOperation(value
    ="删除图书", notes="根据url的id来指定删除图书") @ApiImplicitParam(name = "id", value = "图书ID", required = true, dataType = "Long",paramType = "path") @RequestMapping(value="/{id}", method=RequestMethod.DELETE) public String deleteUser(@PathVariable Long id) { books.remove(id); return "success"; } @ApiIgnore//使用该注解忽略这个API @RequestMapping(value = "/hi", method = RequestMethod.GET) public String jsonTest() { return " hi you!"; } }

      通过相关注解,就可以让swagger2生成相应的文档。如果你不需要某接口生成文档,只需要在加@ApiIgnore注解即可。

      需要说明的是,如果请求参数在url上,@ApiImplicitParam 上加paramType = “path” 。

    启动工程,访问:http://localhost:8080/swagger-ui.html ,就看到swagger-ui:

    四、参考资料

    swagger.io

    Spring Boot中使用Swagger2构建强大的RESTful API文档

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  • 原文地址:https://www.cnblogs.com/javahr/p/8423489.html
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