Spring Boot 生成接口文檔 swagger2

swagger,中文「拽」的意思。它是一個功能強大的api框架，它的集成很是簡單，不只提供了在線文檔的查閱，並且還提供了在線文檔的測試。

另外swagger很容易構建restful風格的api，簡單優雅帥氣，正如它的名字。

引入依賴

 <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.8.0</version>
        </dependency>

寫配置類

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;


@Configuration
@EnableSwagger2
public class SwaggerConfig {
  
    Boolean swaggerEnabled = true;
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                // 是否開啓
                .enable(swaggerEnabled)//true
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.user.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                //頁面標題
                .title(" 測試使用 ")
                //建立人
                .contact(new Contact("clc", "http://www.baidu.com", ""))
                //版本號
                .version("1.0")
                //描述
                .description("API 描述")
                .build();
    }


}

經過@Configuration註解，代表它是一個配置類，

@EnableSwagger2開啓swagger2。

apiINfo()配置一些基本的信息。apis()指定掃描的包會生成文檔。

寫生產文檔的註解

swagger經過註解代表該接口會生成文檔，包括接口名、請求方法、參數、返回信息的等等。

• @Api：修飾整個類，描述Controller的做用
• @ApiOperation：描述一個類的一個方法，或者說一個接口
• @ApiParam：單個參數描述
• @ApiModel：用對象來接收參數
• @ApiProperty：用對象接收參數時，描述對象的一個字段
• @ApiResponse：HTTP響應其中1個描述
• @ApiResponses：HTTP響應總體描述
• @ApiIgnore：使用該註解忽略這個API
• @ApiError ：發生錯誤返回的信息
• @ApiParamImplicitL：一個請求參數
• @ApiParamsImplicit 多個請求參數

如今經過一個栗子來講明：

package clc.user.controller;

import clc.user.bean.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import springfox.documentation.annotations.ApiIgnore;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * ClassName: TestSwaggerController<br/>
 * Description: <br/>
 * date: 2018/11/30 10:06 AM<br/>
 *
 * @author chengluchao
 * @since JDK 1.8
 */
@Api(tags = "用戶API")
@RestController
public class TestSwaggerController {

    Map<Object, User> users = Collections.synchronizedMap(new HashMap<Object, User>());

    @ApiOperation(value = "獲取用戶列表", notes = "獲取用戶列表")
    @RequestMapping(value = {"/getUser1"}, method = RequestMethod.GET)
    public List<User> getUser() {
        List<User> user = new ArrayList<>(users.values());
        return user;
    }

    @ApiOperation(value = "建立用戶", notes = "建立用戶")
    @ApiImplicitParam(name = "user", value = "用戶詳細實體", required = true, dataType = "User")
    @RequestMapping(value = "/createUser", method = RequestMethod.POST)
    public String postUser(@RequestBody User user) {
        users.put(user.getAge(), user);
        return "success";
    }

    @ApiOperation(value = "獲用戶細信息", notes = "根據url的id來獲取詳細信息")
    @ApiImplicitParam(name = "id", value = "ID", required = true, dataType = "Long", paramType = "path")
    @RequestMapping(value = "/byid", method = RequestMethod.GET)
    public User getUser(@PathVariable Long id) {
        return users.get(id);
    }

    @ApiOperation(value = "更新信息", notes = "根據url的id來指定更新用戶信息")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "用戶ID", required = true, dataType = "Long", paramType = "path"),
            @ApiImplicitParam(name = "user", value = "用戶實體user", required = true, dataType = "User")
    })
    @RequestMapping(value = "/putid", method = RequestMethod.PUT)
    public String putUser(@PathVariable Long id, @RequestBody User user) {
        User user1 = users.get(id);
        user1.setName(user.getName());
        users.put(id, user1);
        return "success";
    }

    @ApiOperation(value = "刪除用戶", notes = "根據url的id來指定刪除用戶")
    @ApiImplicitParam(name = "id", value = "用戶ID", required = true, dataType = "Long", paramType = "path")
    @RequestMapping(value = "/delid", method = RequestMethod.DELETE)
    public String deleteUser(@PathVariable Long id) {
        users.remove(id);
        return "success";
    }

    @ApiIgnore//使用該註解忽略這個API
    @RequestMapping(value = "/hi", method = RequestMethod.GET)
    public String jsonTest() {
        return " hi you!";
    }

}