可以选择集成原生swagger,我这里选择的是在swagger之上又封装了一层的knife4j。比原生swagger更好用点，可以看接口文档，测试接口

引入依赖

 <dependency><groupId>com.github.xiaoymin</groupId><artifactId>knife4j-spring-boot-starter</artifactId><version>3.0.2</version></dependency>

编写配置类

```java
package com.itheima.mp.config;import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;/*** 配置类，注册web层相关组件*/
@Configuration
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {/*** 通过knife4j生成接口文档** @return*/@Beanpublic Docket docket() {ApiInfo apiInfo = new ApiInfoBuilder().title("swagger文档").version("2.0").description("这是我的文档").build();Docket docket = new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo).select().apis(RequestHandlerSelectors.basePackage("com.itheima.mp")).paths(PathSelectors.any()).build();return docket;}/*** 设置静态资源映射** @param registry*/protected void addResourceHandlers(ResourceHandlerRegistry registry) {registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");}
}

## controller层和实体类上加注解
![在这里插入图片描述](https://i-blog.csdnimg.cn/direct/1bd4feab19b3416bbbd6282782ce020a.png)
![在这里插入图片描述](https://i-blog.csdnimg.cn/direct/5a8115016885470c93f0fef839a0badf.png)## 访问swagger文档地址
项目启动地址/doc.html
例如 127.0.0.1:9090/doc.html
![在这里插入图片描述](https://i-blog.csdnimg.cn/direct/2bcf078ed6bd40a6b3a1cd3a3456d96f.png)