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前后端对接,就得有一个好的的接口文档,具体到:接口的名称,说明,入参字段,出参字段,是否必传,参数类型等等,这里记录一下使用的swagger ui组件 knife4j-spring-ui。 knife4j-spring-ui 是swagger的一个增强版,相比官方ui,其界面更美观,功能更强大,字段说明更清晰直观,测试起来更方便
对比一下:
官方UI:
全新UI:
集成在sprintboot项目中
使用Knife4j有两种方式:
官网地址:Knife4j · 集Swagger2及OpenAPI3为一体的增强解决方案. | Knife4j
- <!-- Swagger2增强版,全新UI 引入Knife4j的官方start包,Swagger2基于Springfox2.10.5项目-->
- <dependency>
- <groupId>com.github.xiaoymin</groupId>
- <artifactId>knife4j-spring-boot-starter</artifactId>
- <version>2.0.9</version>
- </dependency>
配置基本的文档说明信息,如果不配置,就是默认的
- ##### swagger文档的部分配置 ####
- knife4j:
- # 生产环境可改为 false(改为false后 swagger将不能使用)
- enable: true
如果不配置,访问swagger页面时可能出现404
- package com.zhh.demo.config;
-
- import org.springframework.beans.factory.annotation.Value;
- 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.Contact;
- import springfox.documentation.spi.DocumentationType;
- import springfox.documentation.spring.web.plugins.Docket;
- import springfox.documentation.swagger2.annotations.EnableSwagger2WebMvc;
-
- /**
- * @Description: swagger全新UI
- * @Author: zhaoheng
- */
- @Configuration
- @EnableSwagger2WebMvc
- public class Knife4jConfiguration {
-
- /** 生产环境可改为 false(改为false后 swagger将不能使用)*/
- @Value("${knife4j.enable:true}")
- private boolean knife4jEnable;
-
- /**
- * 初始化配置,注入到容器
- * swagger访问地址:http://127.0.0.1:8080/demo/doc.html#/home
- */
- @Bean(value = "dockerBean")
- public Docket dockerBean() {
- //指定使用Swagger2规范
- Docket docket = new Docket(DocumentationType.SWAGGER_2)
- .apiInfo(new ApiInfoBuilder()
- //描述字段支持Markdown语法
- .description("# xxx管理平台接口api")
- .termsOfServiceUrl("https://doc.xiaominfo.com/")
- .contact(new Contact("zhaoheng", "https://blog.csdn.net/Muscleheng", "xxx@163.com"))
- .version("1.0")
- .build())
- //分组名称
- .groupName("xxx服务")
- .enable(knife4jEnable)
- .select()
- //这里指定Controller扫描包路径
- .apis(RequestHandlerSelectors.basePackage("com.zhh.demo.controller"))
- .paths(PathSelectors.any())
- .build();
- return docket;
- }
- }
- <!-- 封装了swagger2 -->
- <dependency>
- <groupId>io.github.wilson-he</groupId>
- <artifactId>swagger2-spring-boot-starter</artifactId>
- <version>1.1.2</version>
- </dependency>
- <!-- swagger增强版ui,相比官方ui,界面更美观,功能更强大 -->
- <!-- 如果springBoot版本过高,可能会出现错误 -->
- <dependency>
- <groupId>com.github.xiaoymin</groupId>
- <artifactId>knife4j-spring-ui</artifactId>
- <version>3.0.2</version>
- </dependency>
配置基本的文档说明信息,如果不配置,就是默认的
- ##### swagger文档部分配置 ####
- swagger:
- # 生产环境改为false(改为false后swagger-ui.html则无法访问)
- enabled: true
- docket:
- api-info:
- title: xxx管理平台接口api
- description: 文件详细说明
- version: 1.0.0
- # 维护者信息
- contact:
- name: zhaoheng
- url: https://blog.csdn.net/Muscleheng?type=blog
如果不配置,访问swagger页面时可能出现404
- @Configuration
- public class WebMvcConfig implements WebMvcConfigurer {
- /**
- * 配置静态资源访问路径
- */
- @Override
- public void addResourceHandlers(ResourceHandlerRegistry registry) {
- // 静态资源访问路径和存放路径配置
- registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/","classpath:/public/");
- // swagger访问配置
- registry.addResourceHandler("/**").addResourceLocations("classpath:/META-INF/resources/","classpath:/META-INF/resources/webjars/");
- }
- }
在对应的出入参实体类、字段上添加swagger的注解,就能在接口文档上显示对应的字段说明
出参实体:
- import io.swagger.annotations.ApiModel;
- import io.swagger.annotations.ApiModelProperty;
- import lombok.Data;
-
- @Data
- @ApiModel("用户信息出参实体")
- public class UserVO {
-
- @ApiModelProperty(value = "编号")
- private Long id;
-
- @ApiModelProperty(value = "姓名")
- private String name;
-
- @ApiModelProperty(value = "年龄")
- private Integer age;
- }
入参实体:
- import io.swagger.annotations.ApiModel;
- import io.swagger.annotations.ApiModelProperty;
- import lombok.Data;
-
- @Data
- @ApiModel("用户信息查询入参实体")
- public class QueryUserRO {
-
- @ApiModelProperty(value = "编号",required = true)
- private Long id;
-
- @ApiModelProperty(value = "姓名",required = false)
- private String name;
- }
- @Api(tags = "用户管理-api")
- @RestController
- @RequestMapping("/demo1")
- public class Demo1Controller {
-
- @ApiOperation("查询用户接口1")
- @PostMapping("/getUser")
- public UserVO getUser(@RequestBody QueryUserRO queryUserRO){
- return new UserVO();
- }
-
- @ApiOperation("查询用户接口2")
- @ApiImplicitParams({
- @ApiImplicitParam(name = "id", value = "用户id", dataType = "Long", required = true),
- @ApiImplicitParam(name = "name", value = "用户姓名", dataType = "String", required = false)
- })
- @PostMapping("/getUser2")
- public UserVO getUser2(@RequestParam(name = "id",required = true) Long id, @RequestParam(name = "name",required = false) String name){
- return new UserVO();
- }
- }
启动项目,可通过两个地址访问到swagger文档:
官方文档UI界面:127.0.0.1:8080/swagger-ui.html
增强版UI界面:127.0.0.1:8080/doc.html
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