简介
Swagger是一款目前世界最流行的API管理工具。目前Swagger已经形成一个生态圈,能够管理API的整个生命周期,从设计、文档到测试与部署。Swagger有几个重要特性:
作用
优点
1. 大大减少前后端的沟通 2. 方便查找和测试接口 3. 提高团队的开发效率 4. 方便新人了解项目
引入依赖(哪个分布式项目需要在线生成接口,就需要引入)
<!-- swagger -->
<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>
配置类
package com.zx.upload.config;
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.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
/**
* Swagger 配置文件
*/
@Configuration
@EnableSwagger2
public class SwaggerConfig {
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("com.zx")) //swagger搜索的包
.paths(PathSelectors.any()) //swagger路径匹配
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("文件上传文档")
.description("使用FastDfs文件上传")
.version("version 1.0")
.build();
}
}
swagger通过在controller中,声明注解,API文档进行说明
1、@Api():用在请求的类上,表示对类的说明,也代表了这个类是swagger2的资源
参数:
2、@ApiOperation():用于方法,表示一个http请求访问该方法的操作
参数:
3、@ApiModel():用于响应实体类上,用于说明实体作用
参数:
description="描述实体的作用"
4、@ApiModelProperty:用在属性上,描述实体类的属性
参数:
value="用户名" 描述参数的意义 name="name" 参数的变量名 required=true 参数是否必选
5、@ApiImplicitParams:用在请求的方法上,包含多@ApiImplicitParam
6、@ApiImplicitParam:用于方法,表示单独的请求参数
参数:
paramType="query" 表示参数放在哪里
· header 请求参数的获取:@RequestHeader · query 请求参数的获取:@RequestParam · path(用于restful接口) 请求参数的获取:@PathVariable · body(不常用) · form(不常用)
defaultValue="参数的默认值"
required="true" 表示参数是否必须传
7、@ApiParam():用于方法,参数,字段说明 表示对参数的要求和说明
参数:
8、@ApiResponses:用于请求的方法上,根据响应码表示不同响应
一个@ApiResponses包含多个@ApiResponse
9、@ApiResponse:用在请求的方法上,表示不同的响应
参数:
code="404" 表示响应码(int型),可自定义 message="状态码对应的响应信息"
10、@ApiIgnore():用于类或者方法上,不被显示在页面上
使用
实体类
@ApiModel("用户对象模型")
public class User {
@ApiModelProperty(value = "用户id",name = "id",required = true)
private Long id;
@ApiModelProperty(value = "用户名",name = "username",required = true)
private String username;
@ApiModelProperty(value = "密码",name = "password",required = true)
private String password;
@ApiModelProperty(value = "邮箱",name = "email",required = false)
private String email;
get set方法}
controller(我们进行模拟,不连接数据库)
package com.zx.controller;
import com.zx.bean.User;
import io.swagger.annotations.*;
import net.bytebuddy.implementation.bind.annotation.Default;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;
import springfox.documentation.service.Tags;
/**
* @Author CaesarChang张旭
* @Date 2020/12/17 9:33 下午
* @Version 1.0
*/
@RestController
@RequestMapping("/user")
@Api(tags={"用户管理api"})
public class UserController {
@PostMapping
@ApiOperation(value = "新增用户",notes = "新增返回新增的用户")
@ApiResponses({
@ApiResponse(code = 400,message = "id==1参数没填好"),
@ApiResponse(code = 401,message = "id==2权限不足"),
@ApiResponse(code = 200,message = "新增成功")
})
public ResponseEntity<User> add(User user) {
if (user.getId() == 1) {
return new ResponseEntity<>(user, HttpStatus.BAD_REQUEST); //400
} else if (user.getId() == 2) {
return new ResponseEntity<>(user, HttpStatus.UNAUTHORIZED); //401
}else{
return new ResponseEntity<>(user, HttpStatus.OK);//200
}
}
@PutMapping
@ApiIgnore
public ResponseEntity<User> update(User user) {
if (user.getId() == 1) {
return new ResponseEntity<>(user, HttpStatus.BAD_REQUEST); //400
} else if (user.getId() == 2) {
return new ResponseEntity<>(user, HttpStatus.UNAUTHORIZED); //401
}else{
return new ResponseEntity<>(user, HttpStatus.OK);//200
}
}
@DeleteMapping("/{id}")
@ApiOperation(value = "删除用户",notes = "删除返回删除id")
@ApiResponses({
@ApiResponse(code = 400,message = "id==1参数没填好"),
@ApiResponse(code = 401,message = "id==2权限不足"),
@ApiResponse(code = 200,message = "删除成功")
})
public ResponseEntity<Long> delete(Long id) {
if (id == 1) {
return new ResponseEntity<>(id, HttpStatus.BAD_REQUEST); //400
} else if (id == 2) {
return new ResponseEntity<>(id, HttpStatus.UNAUTHORIZED); //401
}else{
return new ResponseEntity<>(id, HttpStatus.OK);//200
}
}
@GetMapping("/{id}")
@ApiOperation(value = "查询",notes="通过id查询")
@ApiImplicitParam(paramType = "path",name = "id",value = "要查询的id",readOnly = true)
public ResponseEntity<Long> get(@PathVariable("id") Long id) {
if (id == 1) {
return new ResponseEntity<>(id, HttpStatus.BAD_REQUEST); //400
} else if (id == 2) {
return new ResponseEntity<>(id, HttpStatus.UNAUTHORIZED); //401
}else{
return new ResponseEntity<>(id, HttpStatus.OK);//200
}
}
@PostMapping("/list-page")
@ApiOperation(value = "分页查询",notes="得到分页查询对象")
@ApiImplicitParams({
@ApiImplicitParam(paramType = "query",name = "pageNum",value = "页码",required = false),
@ApiImplicitParam(paramType = "query",name = "pageSize",value="每页行数",required = false)
})
public ResponseEntity<String> getList(@RequestParam(defaultValue = "1",required = false) Integer pageNum, @RequestParam(defaultValue = "1",required = false)Integer pageSize) {
return ResponseEntity.ok("分页成功");
}
}
结果
使用swagger测试文件上传
拜了个拜!么么哒!