swagger简介
swagger官网: https://swagger.io/
Swagger 是一个规范和完整的框架,用于生成、描述、调用和可视化 RESTful 风格的 Web 服务。
- maven依赖
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.2.2</version>
</dependency>
swagger配置
package com.swaggerTest;
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;
/**
* Swagger2配置类
* 在与spring boot集成时,放在与Application.java同级的目录下。
* 通过@Configuration注解,让Spring来加载该类配置。
* 再通过@EnableSwagger2注解来启用Swagger2。
*/
@Configuration
@EnableSwagger2
public class Swagger2 {
/**
* 创建API应用
* apiInfo() 增加API相关信息
* 通过select()函数返回一个ApiSelectorBuilder实例,用来控制哪些接口暴露给Swagger来展现,
* 本例采用指定扫描的包路径来定义指定要建立API的目录。
*
* @return
*/
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("com.swaggerTest.controller"))
.paths(PathSelectors.any())
.build();
}
/**
* 创建该API的基本信息(这些基本信息会展现在文档页面中)
* 访问地址:http://项目实际地址/swagger-ui.html
* @return
*/
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("Spring Boot中使用Swagger2构建RESTful APIs")
.description("更多请关注https://jacky-wangjj.github.io/")
.termsOfServiceUrl("https://jacky-wangjj.github.io/")
.contact("sunf")
.version("1.0")
.build();
}
}
swagger注解
@Api:用在类上,说明该类的作用。
@ApiOperation:注解来给API增加方法说明。
@ApiImplicitParams : 用在方法上包含一组参数说明。
@ApiImplicitParam:用来注解来给方法入参增加说明。
@ApiResponses:用于表示一组响应
@ApiResponse:用在@ApiResponses中,一般用于表达一个错误的响应信息
|—– code:数字,例如400
|—– message:信息,例如”请求参数没填好”
|—– response:抛出异常的类
@ApiModel:描述一个Model的信息(一般用在请求参数无法使用@ApiImplicitParam注解进行描述的时候) |—– @ApiModelProperty:描述一个model的属性
@ApiImplicitParam的参数说明:
参数 | 说明 |
---|---|
paramType:指定参数放在哪个地方 | header:请求参数放置于Request Header,使用@RequestHeader获取 |
query:请求参数放置于请求地址,使用@RequestParam获取 | |
path:(用于restful接口)–>请求参数的获取:@PathVariable | |
body:(不常用) | |
form(不常用) | |
name:参数名 | |
dataType:参数类型 | |
required:参数是否必须传 | true / false |
value:说明参数的意思 | |
defaultValue:参数的默认值 |
- paramType会直接影响程序的运行期,如果paramType与方法参数获取使用的注解不一致,会直接影响参数的接收。
API接口实例
package com.swaggerTest.controller;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
/**
* 一个用来测试swagger注解的控制器
* 注意@ApiImplicitParam的使用会影响程序运行,如果使用不当可能造成控制器收不到消息
*
* @author SUNF
*/
@Controller
@RequestMapping("/say")
@Api(value = "SayController|一个用来测试swagger注解的控制器")
public class SayController {
@ResponseBody
@RequestMapping(value ="/getUserName", method= RequestMethod.GET)
@ApiOperation(value="根据用户编号获取用户姓名", notes="test: 仅1和2有正确返回")
@ApiImplicitParam(paramType="query", name = "userNumber", value = "用户编号", required = true, dataType = "Integer")
public String getUserName(@RequestParam Integer userNumber){
if(userNumber == 1){
return "张三丰";
}
else if(userNumber == 2){
return "慕容复";
}
else{
return "未知";
}
}
@ResponseBody
@RequestMapping("/updatePassword/{userId}")
@ApiOperation(value="修改用户密码", notes="根据用户id修改密码")
@ApiImplicitParams({
@ApiImplicitParam(paramType="query", name = "password", value = "旧密码", required = true, dataType = "String"),
@ApiImplicitParam(paramType="query", name = "newPassword", value = "新密码", required = true, dataType = "String")
})
public String updatePassword(@ApiParam(value = "user's id", required = true, dataType = "Integer")
@PathParam(value = "userId") Integer userId,
@RequestParam(value="password") String password,
@RequestParam(value="newPassword") String newPassword){
if(userId <= 0 || userId > 2){
return "未知的用户";
}
if(StringUtils.isEmpty(password) || StringUtils.isEmpty(newPassword)){
return "密码不能为空";
}
if(password.equals(newPassword)){
return "新旧密码不能相同";
}
return "密码修改成功!";
}
}
Model实例
import com.lenovo.medicinealert.common.configuration.Constants;
import com.lenovo.medicinealert.common.model.BaseEntity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;
import javax.validation.constraints.Size;
/**
* @author wangjj17@lenovo.com
* @date 2019/6/6
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
@ApiModel(value = "MenuUpdate", description = "菜单")
public class MenuUpdate implements BaseEntity {
private static final long serialVersionUID = 1524191037779868928L;
@ApiModelProperty(name = "name", value = "菜单名", required = true)
@NotNull
@Size(min = 1, max = 64, message = "Field name cannot be empty. The length of name should not be more than 64 symbols.")
@Pattern(regexp = Constants.NAME_PATTERN_REGEX, message = "Name's format isn't correct.")
private String name;
@ApiModelProperty(name = "description", value = "描述")
@Size(max = 100, message = "The length of description should not be more than 100 symbols.")
private String description;
@ApiModelProperty(name = "url", value = "菜单url", required = true)
@Pattern(regexp = Constants.URL_PATTERN_REGEX, message = "Invalid resource url.")
private String url;
@ApiModelProperty(name = "parentMenuId", value = "父菜单id")
private Long parentMenuId;
@ApiModelProperty(name = "level", value = "优先级", required = true)
@NotNull
@Min(0)
@Max(10)
private Integer level;
}
通过SwaggerHub编写接口文档
https://blog.csdn.net/qq_32589355/article/details/81089954
Swagger强大的API文档工具
https://www.imooc.com/article/71842