<!-- swagger2开始 -->

<dependency>

	<groupId>io.springfox</groupId>

	<artifactId>springfox-swagger2</artifactId>

	<version>2.4.0</version>

</dependency>

<dependency>

	<groupId>io.springfox</groupId>

	<artifactId>springfox-swagger-ui</artifactId>

	<version>2.4.0</version>

</dependency>

<!-- swagger2结束 -->

package com.example.demo;

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 Swagger2 {

    //swagger2的配置文件，这里可以配置swagger2的一些基本的内容，比如扫描的包等等

    @Bean

    public Docket createRestApi(){

        return new Docket(DocumentationType.SWAGGER_2)

                .apiInfo(apiInfo())

                .select()

                //为当前需要扫描到的包的路径

                .apis(RequestHandlerSelectors.basePackage("com.example.demo"))

                .paths(PathSelectors.any())

                .build();

    }

    //构建 api文档的详细信息函数,注意这里的注解引用的是哪个

    private ApiInfo apiInfo() {

        return new ApiInfoBuilder()

                //页面标题

                .title("SpringBoot的Swagger2构建RESTful API接口形式")

                //创建人

                .contact(new Contact("cxy", "https://www.cnblogs.com/lazycxy/", "cxymasters@163.com"))

                //版本号

                .version("1.0")

                //描述

                .description("API相关描述")

                .build();

    }

}

@RestController

@Api("测试接口描述")

public class HelloWorld {

    @RequestMapping("/hello")

    @ApiOperation(value = "方法介绍描述", httpMethod = "GET", response = String.class, notes = "方法介绍描述")

    public String hello(

            @RequestParam(value = "field", required = false)@ApiParam("参数描述") String field

    ){

        return "hello world~~~";

    }

}