Swagger&Knife4
(一)、准备
1、SpringBoot项目
说明:前后端分离前提下,前端是一个独立项目,因此该SpringBoot无需添加Thymeleaf依赖!
2、vo类
Employee类:
package com.soft.vo; import java.util.Date; public class Employee { private String id;//主键 private String userName;//用户名 private String password;//密码 private String realName;//姓名 private String nationId;//民族id private int role;//角色 1-管理员 2-普通员工 private int status;//在职状态 1-试用 2-在职 3-离职 private String mobile;//手机号 private String address;//家庭地址 private Date createTime;//创建时间 private Date updateTime;//修改时间 ...省略setter和getter }
Nation类:
package com.soft.vo; import java.util.Date; public class Nation { private String id;//主键 private int level;//级别 private String name;//名称 private Date createTime;//创建时间 private Date updateTime;//修改时间 public Nation(String id, int level, String name, Date createTime, Date updateTime) { this.id = id; this.level = level; this.name = name; this.createTime = createTime; this.updateTime = updateTime; } ...省略setter和getter }
3、controller类
EmployeeController类:
package com.soft.employee; import com.soft.vo.Employee; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.Date; import java.util.HashMap; import java.util.Map; import java.util.UUID; @RestController @RequestMapping("/employee") public class EmployeeController { @RequestMapping("/save.do") public Map<String,Object> save(Employee employee){ Map<String,Object> map = new HashMap<>(); if(true) { map.put("status", "1"); map.put("message", "添加成功"); }else{ map.put("status", "-1"); map.put("message", "添加失败"); } return map; } @RequestMapping("/get.do") public Employee get(String id){ Employee employee = new Employee(); employee.setId(UUID.randomUUID().toString()); employee.setUserName("admin"); employee.setPassword("123456"); employee.setRealName("xxx"); employee.setNationId("b69d81bb-4ac1-11ed-b98f-68f7287a2222"); employee.setRole(1); employee.setStatus(2); employee.setMobile("17xxxxxxxx6"); employee.setAddress("河xxxxxxxxxxx区"); employee.setCreateTime(new Date()); employee.setUpdateTime(new Date()); return employee; } }
NationController类
package com.soft.nation; import com.soft.vo.Nation; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.*; @RestController @RequestMapping("/nation") public class NationController { @ApiOperation("根据民族名称分页查询民族信息") @GetMapping("/page.do") public List<Nation> page(String name, int pageNo){ List<Nation> list = new ArrayList<>(); Nation nation = new Nation("b69d81bb-4ac1-11ed-b98f-68f7287a2222",1,"x族",new Date(),new Date()); list.add(nation); nation = new Nation("355745c2-1a29-48e3-933f-d7366ef0728d",2,"维x族",new Date(),new Date()); list.add(nation); nation = new Nation("1a62d852-c777-407d-801e-d48ae0fc044c",3,"蒙x族",new Date(),new Date()); list.add(nation); return list; } }
(二)、Swagger
1、简介
Swagger是世界上最流行的API框架;支持多种语言 (如:Java,PHP等);自动生成Restful Api 文档,可以在线测试后台API程序
官网地址:https://swagger.io/
2、作用
前后端分离架构下,前端工程师通过Swagger实时跟踪后端程序最新API,这大大缩短了前后端工程师沟通成本,提高了开发效率!
3、注解
Swagger注解很多,这里仅总结常用注解。
4、实战
4.1、依赖
<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.9.2</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.9.2</version> </dependency> <dependency> <groupId>io.swagger</groupId> <artifactId>swagger-annotations</artifactId> <version>1.5.22</version> </dependency> <dependency> <groupId>io.swagger</groupId> <artifactId>swagger-models</artifactId> <version>1.5.22</version> </dependency>
4.2、开启支持
package com.soft; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import springfox.documentation.swagger2.annotations.EnableSwagger2; @EnableSwagger2 //开启Swagger2 @SpringBootApplicationpublic class DubheApplication { public static void main(String[] args) { SpringApplication.run(DubheApplication.class, args); } }
4.3、vo类
Employee类:
package com.soft.vo; import io.swagger.annotations.ApiModel; import io.swagger.annotations.ApiModelProperty; import java.util.Date; @ApiModel("员工实体类") //该实体类须被某个Controller类中的handler方法使用,要么作为方法参数,要么作为方法返回值。 public class Employee { @ApiModelProperty("主键")//给实体类太你家注释使用的 private String id; @ApiModelProperty("用户名") private String userName; @ApiModelProperty(value="密码",hidden = true)//hidden不想让前端工程师看到使用这个 private String password; @ApiModelProperty(value="姓名",required=true)//required让前端工程师必填使用这个 private String realName; @ApiModelProperty("民族id") private String nationId; @ApiModelProperty("角色 1-管理员 2-普通员工") private int role; @ApiModelProperty("在职状态 1-试用 2-在职 3-离职") private int status; @ApiModelProperty("手机号") private String mobile; @ApiModelProperty("家庭地址") private String address; @ApiModelProperty("创建时间") private Date createTime; @ApiModelProperty("修改时间") private Date updateTime; ...省略getter和setter... }
Nation类:
package com.soft.vo; import io.swagger.annotations.ApiModel; import io.swagger.annotations.ApiModelProperty; import java.util.Date; @ApiModel("民族实体类") public class Nation { @ApiModelProperty("主键") private String id; @ApiModelProperty("级别") private int level; @ApiModelProperty("名称") private String name; @ApiModelProperty("创建时间") private Date createTime; @ApiModelProperty("修改时间") private Date updateTime; public Nation(String id, int level, String name, Date createTime, Date updateTime) { this.id = id; this.level = level; this.name = name; this.createTime = createTime; this.updateTime = updateTime; } ...省略getter和setter... }
4.4、controller类
EmployeeController类:
package com.soft.employee; import com.soft.vo.Employee; import io.swagger.annotations.ApiOperation; import io.swagger.annotations.ApiParam; import org.springframework.web.bind.annotation.*; import java.util.Date; import java.util.HashMap; import java.util.Map; import java.util.UUID; @RestController @RequestMapping("/employee") public class EmployeeController { @PostMapping("/save.do") //推荐使用@GetMapping、@PostMapping、@PutMapping和@DeleteMapping;如果使用@RequestMapping,则必须指定其method属性(如@RequestMapping(value = "/save.do",method = RequestMethod.POST)),否则Swagger将生成其它请求类型的文档说明 @ApiOperation("保存员工信息,返回Map集合,key有status和message")//方法的注释 public Map<String,Object> save(Employee employee){ Map<String,Object> map = new HashMap<>(); if(true) { map.put("status", "1"); map.put("message", "添加成功"); }else{ map.put("status", "-1"); map.put("message", "添加失败"); } return map; } @GetMapping("/get.do") @ApiOperation("获取某个员工信息") public Employee get(@ApiParam(value="员工id", required = true) String id){ Employee employee = new Employee(); employee.setId(UUID.randomUUID().toString()); employee.setUserName("axxn"); employee.setPassword("123456"); employee.setRealName("xxx"); employee.setNationId("b69d81bb-4ac1-11ed-b98f-68f7287a2222"); employee.setRole(1); employee.setStatus(2); employee.setMobile("1773xxxxx6"); employee.setAddress("河南xxxxxxxx区"); employee.setCreateTime(new Date()); employee.setUpdateTime(new Date()); return employee; } }
NationController类
package com.soft.nation; import com.soft.vo.Nation; import io.swagger.annotations.ApiOperation; import io.swagger.annotations.ApiParam; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.*; @RestController @RequestMapping("/nation") public class NationController { @ApiOperation("根据民族名称分页查询民族信息") @GetMapping("/page.do") //参数注释@ApiParam required=true为必填项 public List<Nation> page(@ApiParam("民族名称") String name, @ApiParam(value="第几页", required=true) int pageNo){ List<Nation> list = new ArrayList<>(); Nation nation = new Nation("b69d81bb-4ac1-11ed-b98f-68f7287a2222",1,"x族",new Date(),new Date()); list.add(nation); nation = new Nation("355745c2-1a29-48e3-933f-d7366ef0728d",2,"维x族",new Date(),new Date()); list.add(nation); nation = new Nation("1a62d852-c777-407d-801e-d48ae0fc044c",3,"蒙x族",new Date(),new Date()); list.add(nation); return list; } }
4.5、访问测试
http://localhost:8080/swagger-ui.html
5、配置Swagger
5.1、文档信息
package com.soft.config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import springfox.documentation.service.ApiInfo; import springfox.documentation.service.Contact; import springfox.documentation.spi.DocumentationType; import springfox.documentation.spring.web.plugins.Docket; import java.util.ArrayList; @Configurationpublic class ApplicationConfig { @Bean public ApiInfo apiInfo() { Contact contact = new Contact("xxx", "https://blog.csdn.net/gaohuanjie", "**********"); return new ApiInfo( "dubhe API 文档", // 标题 "API 文档", // 描述 "v1.0", // 版本 "https://space.bilibili.com/276896380", // 组织链接 contact, // 联系人信息 "Apache 2.0", // 许可 "http://www.apache.org/licenses/LICENSE-2.0", // 许可链接 new ArrayList()// 扩展 ); } @Bean public Docket docket(ApiInfo apiInfo){ return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo); } }
5.2、扫描接口
@Bean public Docket docket(ApiInfo apiInfo){ return new Docket(DocumentationType.SWAGGER_2) .apiInfo(apiInfo) //通过.select()方法配置扫描接口 .select() /* RequestHandlerSelectors 配置如何扫描接口 any():全部扫描(项目中的所有接口) none():不扫描 basePackage:扫描指定包下的接口 withClassAnnotation:扫描带有指定注解的类 withMethodAnnotation:扫描带有指定注解的方法 */ .apis(RequestHandlerSelectors.withClassAnnotation(RestController.class)) //扫描RestController修饰的所有类 .build(); }
(三)、Knife4j
1、简介
Knife4j为Java MVC框架集成Swagger生成Api文档提供了增强解决方案,前身是swagger-bootstrap-ui,后来改名knife4j是希望她能像一把匕首一样小巧、轻量并功能强悍!
2、特点
a、简洁——基于左右菜单式的布局方式,更符合国人的操作习惯,文档更清晰;
b、增强——支持接口排序、Swagger资源保护、导出Markdown、参数缓存等强大功能。
c、个性化——个性化配置项,支持接口地址、接口description属性、UI增强等配置功能;
3、实战
SpringBoot项目去掉springfox-swagger2、springfox-swagger-ui、swagger-annotations和swagger-models四个依赖,然后添加如下依赖:
<dependency> <groupId>com.github.xiaoymin</groupId> <artifactId>knife4j-spring-boot-starter</artifactId> <version>3.0.3</version> </dependency>
4、访问
http://localhost:8080/doc.html
标语
说实话,这个knife4在项目中确实能比postman好用那么一点,毕竟knife4是swagger的升级版,所以希望各位在学习的时候能好好理解一下,knife4的基本用法并不难
#knife4#