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、写生产文档的注解

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。

  • @Api:修饰整个类,描述Controller的作用
  • @ApiOperation:描述一个类的一个方法,或者说一个接口
  • @ApiParam:单个参数描述
  • @ApiModel:用对象来接收参数
  • @ApiProperty:用对象接收参数时,描述对象的一个字段
  • @ApiResponse:HTTP响应其中1个描述
  • @ApiResponses:HTTP响应整体描述
  • @ApiIgnore:使用该注解忽略这个API
  • @ApiError :发生错误返回的信息
  • @ApiParamImplicitL:一个请求参数
  • @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!";
    }
}

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03-18 11:50