参考链接:
https://blog.csdn.net/sanyaoxu_2/article/details/80555328
https://www.cnblogs.com/softidea/p/6251249.html
Swagger是什么
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。总体目标是使客户端和文件系统作为服务器以同样的速度来更新。文件的方法,参数和模型紧密集成到服务器端的代码,允许API来始终保持同步。
其实就是一个结合SpringBoot项目使用的 自动生成文档的工具
使用Swagger后,你的项目启动完成,然后访问http://localhost:8080/swagger-ui.html#/即可得到一个这样的文档:
怎么用(基本使用)
1、创建一个SpringBoot项目
2、引入Swagger依赖
<!--Swagger依赖-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.2.2</version>
</dependency>
3、添加Swagger配置(注意修改包扫描路径)
在Application.java同级上创建配置类Swagger2
package cn.itcast;
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("cn.itcast.web"))//api接口包扫描路径
.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")//设置文档的标题
.description("更多请关注http://hanhanhanxu.coding.me")//设置文档的描述->1.Overview
.termsOfServiceUrl("http://www.baidu.com")//设置文档的License信息->1.3 License information
.contact("Han Xu : http://hanhanhanxu.coding.me")//设置文档的联系方式->1.2 Contact information
.version("1.0")//设置文档的版本信息-> 1.1 Version information
.build();
}
}
4、创建测试controller类SayController
package cn.itcast.web;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.stereotype.Controller;
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;
/**
* 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 Han Xu
*/
@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")
@ApiOperation(value="修改用户密码", notes="根据用户id修改密码")
@ApiImplicitParams({
@ApiImplicitParam(paramType="query", name = "userId", value = "用户ID", required = true, dataType = "Integer"),
@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(@RequestParam(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(org.apache.commons.lang3.StringUtils.isBlank(password) || org.apache.commons.lang3.StringUtils.isBlank(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!";
}
}
5、启动项目,测试
访问:http://localhost:8080/swagger-ui.html#/
注解
Swagger使用的注解及其说明:
@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
接收对象(参数为pojo)例子
1、自定义pojo类:DemoDoctor
package cn.itcast.pojo;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
/**
* 医生对象模型,不要使用该类
* @author SUNF
*
*/
@ApiModel(value="医生对象模型")
@Data
public class DemoDoctor{
@ApiModelProperty(value="id" ,required=true)
private Integer id;
@ApiModelProperty(value="医生姓名" ,required=true)
private String name;
}
2、编写测试controller:DoctorTestController
package cn.itcast.web;
import cn.itcast.exception.HttpStatus401Exception;
import cn.itcast.pojo.DemoDoctor;
import com.github.pagehelper.PageInfo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.List;
/**
* 医生类(模拟)
* @author Han Xu
*/
@RequestMapping("/api/v1")
@Controller
@Api(value = "DoctorTestController-医生信息接口模拟")
@Slf4j
public class DoctorTestController {
/**
* 添加医生
*
* 在使用对象封装参数进行传参时,需要在该对象添加注解,将其注册到swagger中
* @link com.zhongying.api.model.base.DemoDoctor
*
* 注意: 在后台采用对象接收参数时,Swagger自带的工具采用的是JSON传参,
* 测试时需要在参数上加入@RequestBody,正常运行采用form或URL提交时候请删除。
*
* @param doctor 医生类对象
* @return
* @throws Exception
*/
@ResponseBody
@RequestMapping(value="/doctor", method= RequestMethod.POST )
@ApiOperation(value="添加医生信息", notes="test:返回已添加医生的id")
public String addDoctor(@RequestBody DemoDoctor doctor) throws Exception {
if(null == doctor || doctor.getId() == null){
throw new HttpStatus401Exception("添加医生失败","DT3388","未知原因","请联系管理员");
}
try {
System.out.println("成功----------->"+doctor.getName());
} catch (Exception e) {
throw new HttpStatus401Exception("添加医生失败","DT3388","未知原因","请联系管理员");
}
return doctor.getId().toString();
}
/**
* 删除医生
* @param doctorId 医生ID
* @return
*/
@ResponseBody
@RequestMapping(value="/doctor/{doctorId}", method= RequestMethod.DELETE )
@ApiOperation(value="删除医生信息", notes="test:根据医生id删除医生,返回执行结果提示信息")
@ApiImplicitParam(paramType="query", name = "doctorId", value = "医生ID", required = true, dataType = "Integer")
public String deleteDoctor(@RequestParam Integer doctorId){
if(doctorId > 2){
return "删除失败";
}
return "删除成功";
}
/**
* 修改医生信息
* @param doctorId 医生ID
* @param doctor 医生信息
* @return
* @throws HttpStatus401Exception
*/
@ResponseBody
@RequestMapping(value="/doctor/{doctorId}", method= RequestMethod.POST )
@ApiOperation(value="修改医生信息", notes="test:根据医生id修改医生")
@ApiImplicitParam(paramType="query", name = "doctorId", value = "医生ID", required = true, dataType = "Integer")
public String updateDoctor(@RequestParam Integer doctorId, @RequestBody DemoDoctor doctor) throws Exception{
if(null == doctorId || null == doctor){
throw new HttpStatus401Exception("修改医生信息失败","DT3391","id不能为空","请修改");
}
if(doctorId > 5 ){
throw new HttpStatus401Exception("医生不存在","DT3392","错误的ID","请更换ID");
}
log.info(doctorId.toString());
log.info("医生:",doctor);
return "修改成功";
}
/**
* 获取医生详细信息
* @param doctorId 医生ID
* @return
* @throws HttpStatus401Exception
*/
@ResponseBody
@RequestMapping(value="/doctor/{doctorId}", method= RequestMethod.GET )
@ApiOperation(value="获取医生详细信息", notes="test:根据医生id获取信息")
@ApiImplicitParam(paramType="query", name = "doctorId", value = "医生ID", required = true, dataType = "Integer")
public DemoDoctor getDoctorDetail(@RequestParam Integer doctorId) throws Exception{
log.info(doctorId.toString());
if(null == doctorId){
throw new HttpStatus401Exception("查看医生信息失败","DT3390","未知原因","请联系管理员");
}
if(doctorId > 3){
throw new HttpStatus401Exception("医生不存在","DT3392","错误的ID","请更换ID");
}
DemoDoctor doctor = new DemoDoctor();
doctor.setId(1);
doctor.setName("测试医生");
return doctor;
}
/**
* 获取医生列表
* @param pageIndex 当前页数
* @param pageSize 每页记录数
* @param request
* @return
* @throws HttpStatus401Exception
*/
@ResponseBody
@RequestMapping(value="/doctor", method= RequestMethod.GET )
@ApiOperation(value="获取医生列表", notes="目前一次全部取,不分页")
@ApiImplicitParams({
@ApiImplicitParam(paramType="header", name = "token", value = "token", required = true, dataType = "String"),
@ApiImplicitParam(paramType="query", name = "pageIndex", value = "当前页数", required = false, dataType = "String"),
@ApiImplicitParam(paramType="query", name = "pageSize", value = "每页记录数", required = true, dataType = "String"),
})
public PageInfo<DemoDoctor> getDoctorList(@RequestParam(value = "pageIndex", required = false, defaultValue = "1") Integer pageIndex,
@RequestParam(value = "pageSize", required = false) Integer pageSize,
HttpServletRequest request) throws Exception{
String token = request.getHeader("token");
log.info(token);
if(null == token){
throw new HttpStatus401Exception("没有权限","SS8888","没有权限","请查看操作文档");
}
if(null == pageSize){
throw new HttpStatus401Exception("每页记录数不粗安在","DT3399","不存在pageSize","请查看操作文档");
}
DemoDoctor doctor1 = new DemoDoctor();
doctor1.setId(1);
doctor1.setName("测试医生1");
DemoDoctor doctor2 = new DemoDoctor();
doctor2.setId(2);
doctor2.setName("测试医生2");
List<DemoDoctor> doctorList = new ArrayList<DemoDoctor>();
doctorList.add(doctor1);
doctorList.add(doctor2);
return new PageInfo<DemoDoctor>(doctorList);
}
}