第一步：导入依赖

<!--swagger-->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>2.7.0</version>
</dependency>
<!--swagger ui-->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>2.7.0</version>
</dependency>

第二步：swagger2配置

import com.google.common.base.Predicates;
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.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
{
    @Bean
    public Docket webApiConfig(){
        return new Docket(DocumentationType.SWAGGER_2)
                .groupName("webApi")
                .apiInfo(webApiInfo())
                .select()
                .paths(Predicates.not(PathSelectors.regex("/admin/.*")))
                .paths(Predicates.not(PathSelectors.regex("/error.*")))
                .build();
    }
    private ApiInfo webApiInfo(){
        return new ApiInfoBuilder()
                .title("项目标题")
                .description("项目描述")
                .version("1.0")
                .contact(new Contact("作者姓名", "网站地址", "作者联系方式"))
                .build();
    }
}

第三步：使用

@ApiModel(value="EduTeacher对象", description="讲师")
public class EduTeacher implements Serializable {

    @ApiModelProperty(value = "讲师ID")
    private String id;

    @ApiModelProperty(value = "创建时间")
     private Date gmtCreate;
}

@Api(tags="讲师管理")
@RestController
@RequestMapping("/teacher")
public class TeacherController
{
    @ApiOperation(value = "删除讲师")
    @DeleteMapping("deleteTeacher/{id}")
    public R deleteTeacher(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id){
        boolean flag = teacherService.removeById(id);
        return flag ? R.ok():R.error();
    }
}