SpringBoot整合Swagger框架过程解析

<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>2.9.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-ui</artifactId>
      <version>2.9.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.10</version>
      <scope>provided</scope>
    </dependency>

package com.example.demo.config;


import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.env.Profiles;
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;

import java.util.ArrayList;

/**
 * @author yvioo。
 */
@Configuration
@EnableSwagger2 //开启Swagger2
public class SwaggerConfig {


  /**
   * 配置Swagger的Docket的bean实例
   * @return
   */
  @Bean
  public Docket docket(Environment environment) {

    //设置只在开发中环境中启动swagger
    Profiles profiles=Profiles.of("dev");

    //表示如果现在是dev环境，则返回true 开启swagger
    boolean flag=environment.acceptsProfiles(profiles);



    return new Docket(DocumentationType.SWAGGER_2)
        .apiInfo(apiInfo())
        //是否启动swagger 默认启动
        .enable(flag)
        //所在分组
        .groupName("yvioo")
        .select()
        //指定扫描的包路径
        .apis(RequestHandlerSelectors.basePackage("com.example.demo.controller"))
        //指定扫描的请求，这里表示扫描 /hello/ 的请求
        //.paths(PathSelectors.ant("/hello/**"))
        .build();
  }


  /**
   * 配置ApiInfo信息
   * @return
   */
  private ApiInfo apiInfo() {

    //作者信息
    Contact author = new Contact("yvioo", "https://www.cnblogs.com/pxblog/", "111@qq.com");


    return new ApiInfo(
        "Swagger测试",
        "Swagger描述",
        "1.0",
        "urn:tos",
        author,
        "Apache 2.0",
        "http://www.apache.org/licenses/LICENSE-2.0",
        new ArrayList()
    );

  }
}

package com.example.demo.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@ApiModel("用户实体类 User") //增加实体类接口注释
@Data  //使用Lombok插件自动生成get set方法，这样才能在swagger中显示属性值
public class User {
  @ApiModelProperty("用户ID") //增加字段接口注释
  private Integer id;
  @ApiModelProperty("用户名")
  private String username;
}

package com.example.demo.controller;


import com.example.demo.entity.User;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class SwaggerController {


  @GetMapping("/hello")
  public String hello(){
    return "hello";
  }


  /**
   * 接口返回值含有实体类，就会被swagger扫描
   *
   * @return
   */
  @ApiOperation("查询用户方法注释")
  @GetMapping(value = "/get/{id}")
  public User get(@ApiParam("请求参数注释") @PathVariable(value = "id")Integer id){
    return new User();
  }
}