spring boot +Swagger-ui 自动生成API文档
随着互联网技术的发展,现在的网站架构基本都由原来的后端渲染,变成了:前端渲染、先后端分离的形态,而且前端技术和后端技术在各自的道路上越走越远。
这样后段开发好了api 之后就要提交api 文档给前端的朋友。给前端的api 文档各个公司有各个公司的要求,有的是word 有的是 md 文档,或者是 postman 的一个连接。
好了废话不多说说一下 swagger -ui 吧
什么是Swagger
Swagger是一个Restful风格接口的文档在线自动生成和测试的框架
官网:http://swagger.io
官方描述:The World’s Most Popular Framework for APIs.
先看一下 swagger-ui 生成的api 的效果吧(这是一个增删改查的小李子)
然后我们打开查询所有用户的api 看到api 内容
然后在服务器运行的状态下点击 try it out 测试查询功能
接着打开新增的api 查看
好了这个就是自动生成的api 效果。接下来我们就看怎么在我们的项目中使用swagger-ui 吧
springboot 集成 swagger -ui
1、添加依赖
<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>
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2、编写配置文件
在application 同级目录新建 Swagger2 文件
package com.abel.example;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;/*** Created by yangyibo on 2018/9/7.*/
@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*/@Beanpublic Docket createRestApi() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select().apis(RequestHandlerSelectors.basePackage("com.abel.example.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://blog.csdn.net/u012373815").termsOfServiceUrl("https://blog.csdn.net/u012373815").contact("abel").version("1.0").build();}
}
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3、在controller上添加注解,自动生成API
注意:
package com.abel.example.controller;import javax.servlet.http.HttpServletRequest;
import java.util.Map;import com.abel.example.bean.User;
import io.swagger.annotations.*;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;import com.abel.example.service.UserService;
import com.abel.example.util.CommonUtil;@Controller
@RequestMapping(value = "/users")
@Api(value = "用户的增删改查")
public class UserController {@Autowiredprivate UserService userService;/*** 查询所有的用户* api :localhost:8099/users* @return*/@RequestMapping(method = RequestMethod.GET)@ResponseBody@ApiOperation(value = "获取用户列表,目前没有分页")public ResponseEntity<Object> findAll() {return new ResponseEntity<>(userService.listUsers(), HttpStatus.OK);}/*** 通过id 查找用户* api :localhost:8099/users/1* @param id* @return*/@RequestMapping(value = "/{id}", method = RequestMethod.GET)@ResponseBody@ApiOperation(value = "通过id获取用户信息", notes="返回用户信息")public ResponseEntity<Object> getUserById(@PathVariable Integer id) {return new ResponseEntity<>(userService.getUserById(Long.valueOf(id)), HttpStatus.OK);}/*** 通过spring data jpa 调用方法* api :localhost:8099/users/byname?username=xxx* 通过用户名查找用户* @param request* @return*/@RequestMapping(value = "/byname", method = RequestMethod.GET)@ResponseBody@ApiImplicitParam(paramType = "query",name= "username" ,value = "用户名",dataType = "string")@ApiOperation(value = "通过用户名获取用户信息", notes="返回用户信息")public ResponseEntity<Object> getUserByUserName(HttpServletRequest request) {Map<String, Object> map = CommonUtil.getParameterMap(request);String username = (String) map.get("username");return new ResponseEntity<>(userService.getUserByUserName(username), HttpStatus.OK);}/*** 通过spring data jpa 调用方法* api :localhost:8099/users/byUserNameContain?username=xxx* 通过用户名模糊查询* @param request* @return*/@RequestMapping(value = "/byUserNameContain", method = RequestMethod.GET)@ResponseBody@ApiImplicitParam(paramType = "query",name= "username" ,value = "用户名",dataType = "string")@ApiOperation(value = "通过用户名模糊搜索用户信息", notes="返回用户信息")public ResponseEntity<Object> getUsers(HttpServletRequest request) {Map<String, Object> map = CommonUtil.getParameterMap(request);String username = (String) map.get("username");return new ResponseEntity<>(userService.getByUsernameContaining(username), HttpStatus.OK);}/*** 添加用户啊* api :localhost:8099/users** @param user* @return*/@RequestMapping(method = RequestMethod.POST)@ResponseBody@ApiModelProperty(value="user",notes = "用户信息的json串")@ApiOperation(value = "新增用户", notes="返回新增的用户信息")public ResponseEntity<Object> saveUser(@RequestBody User user) {return new ResponseEntity<>(userService.saveUser(user), HttpStatus.OK);}/*** 修改用户信息* api :localhost:8099/users* @param user* @return*/@RequestMapping(method = RequestMethod.PUT)@ResponseBody@ApiModelProperty(value="user",notes = "修改后用户信息的json串")@ApiOperation(value = "新增用户", notes="返回新增的用户信息")public ResponseEntity<Object> updateUser(@RequestBody User user) {return new ResponseEntity<>(userService.updateUser(user), HttpStatus.OK);}/*** 通过ID删除用户* api :localhost:8099/users/2* @param id* @return*/@RequestMapping(value = "/{id}", method = RequestMethod.DELETE)@ResponseBody@ApiOperation(value = "通过id删除用户信息", notes="返回删除状态1 成功 0 失败")public ResponseEntity<Object> deleteUser(@PathVariable Integer id) {return new ResponseEntity<>(userService.removeUser(id.longValue()), HttpStatus.OK);}
}
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注解含义:
@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400message: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
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注意:@ApiImplicitParam的参数说明:
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,会直接影响到参数的接收。
4、启动项目效果图:
服务器启动后访问 http://localhost:8099/swagger-ui.html 效果如下
点击查看效果
本文项目全部代码:https://github.com/527515025/springBoot/tree/master/springboot-swagger-ui
本文参考:https://blog.csdn.net/machihaoyu/article/details/78475699
https://blog.csdn.net/tuposky/article/details/77965139
https://blog.csdn.net/sanyaoxu_2/article/details/80555328