Swagger–接口生成工具

使用Swagger你只需要按照它的规范去定义接口及接口相关的信息，再通过Swagger衍生出来的一系列项目和工具，
就可以做到生成各种格式的接口文档，以及在线接口调试页面等等。

官网: https://lswagger.io/
knife4j是为Java MVC框架集成Swagger生成Api文档的增强解决方案。

swagger的使用

操作步骤:
1、导入knife4j的maven坐标

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

2、导入knife4j相关配置类

package com.mannor.reggie_take_out.config;

import com.github.xiaoymin.knife4j.spring.annotations.EnableKnife4j;
import com.mannor.reggie_take_out.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

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;
import springfox.documentation.swagger2.annotations.EnableSwagger2;



@Slf4j
@Configuration
@EnableSwagger2
@EnableKnife4j
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /**
     * 设置静态资源映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源映射...");
        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    @Bean
    public Docket createRestApi() {
        // 文档类型
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.mannor.reggie_take_out.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("瑞吉外卖")
                .version("1.0")
                .description("瑞吉外卖接口文档")
                .build();
    }
}