大家好,又见面了,我是你们的朋友全栈君。
手写Api文档的几个痛点:
- 文档需要更新的时候,需要再次发送一份给前端,也就是文档更新交流不及时。
- 接口返回结果不明确
- 不能直接在线测试接口,通常需要使用工具,比如postman
- 接口文档太多,不好管理
Swagger也就是为了解决这个问题,当然也不能说Swagger就一定是完美的,当然也有缺点,最明显的就是代码移入性比较强。
一、依赖
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.6.1</version>
</dependency>
二、Swagger配置类
其实这个配置类,只要了解具体能配置哪些东西就好了,毕竟这个东西配置一次之后就不用再动了。 特别要注意的是里面配置了api文件也就是controller包的路径,不然生成的文档扫描不到接口。
package cn.saytime;
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;
/**
* @author zh
* @ClassName cn.saytime.Swgger2
* @Description
* @date 2017-07-10 22:12:31
*/
@Configuration
public class Swagger2 {
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("cn.saytime.web"))
.paths(PathSelectors.any())
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("springboot利用swagger构建api文档")
.description("简单优雅的restfun风格,http://blog.csdn.net/saytime")
.termsOfServiceUrl("http://blog.csdn.net/saytime")
.version("1.0")
.build();
}
}
Application.class 加上注解@EnableSwagger2 表示开启Swagger
Ps:用@Configuration注解该类,等价于XML中配置beans;用@Bean标注方法等价于XML中配置bean。
package cn.saytime;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
@SpringBootApplication
@EnableSwagger2
public class SpringbootSwagger2Application {
public static void main(String[] args) {
SpringApplication.run(SpringbootSwagger2Application.class, args);
}
}
三、Restful 接口
package cn.saytime.web;
import cn.saytime.bean.JsonResult;
import cn.saytime.bean.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import springfox.documentation.annotations.ApiIgnore;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author zh
* @ClassName cn.saytime.web.UserController
* @Description
*/
@RestController
public class UserController {
// 创建线程安全的Map
static Map<Integer, User> users = Collections.synchronizedMap(new HashMap<Integer, User>());
/**
* 根据ID查询用户
* @param id
* @return
*/
@ApiOperation(value="获取用户详细信息", notes="根据url的id来获取用户详细信息")
@ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Integer", paramType = "path")
@RequestMapping(value = "user/{id}", method = RequestMethod.GET)
public ResponseEntity<JsonResult> getUserById (@PathVariable(value = "id") Integer id){
JsonResult r = new JsonResult();
try {
User user = users.get(id);
r.setResult(user);
r.setStatus("ok");
} catch (Exception e) {
r.setResult(e.getClass().getName() + ":" + e.getMessage());
r.setStatus("error");
e.printStackTrace();
}
return ResponseEntity.ok(r);
}
/**
* 查询用户列表
* @return
*/
@ApiOperation(value="获取用户列表", notes="获取用户列表")
@RequestMapping(value = "users", method = RequestMethod.GET)
public ResponseEntity<JsonResult> getUserList (){
JsonResult r = new JsonResult();
try {
List<User> userList = new ArrayList<User>(users.values());
r.setResult(userList);
r.setStatus("ok");
} catch (Exception e) {
r.setResult(e.getClass().getName() + ":" + e.getMessage());
r.setStatus("error");
e.printStackTrace();
}
return ResponseEntity.ok(r);
}
/**
* 添加用户
* @param user
* @return
*/
@ApiOperation(value="创建用户", notes="根据User对象创建用户")
@ApiImplicitParam(name = "user", value = "用户详细实体user", required = true, dataType = "User")
@RequestMapping(value = "user", method = RequestMethod.POST)
public ResponseEntity<JsonResult> add (@RequestBody User user){
JsonResult r = new JsonResult();
try {
users.put(user.getId(), user);
r.setResult(user.getId());
r.setStatus("ok");
} catch (Exception e) {
r.setResult(e.getClass().getName() + ":" + e.getMessage());
r.setStatus("error");
e.printStackTrace();
}
return ResponseEntity.ok(r);
}
/**
* 根据id删除用户
* @param id
* @return
*/
@ApiOperation(value="删除用户", notes="根据url的id来指定删除用户")
@ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long", paramType = "path")
@RequestMapping(value = "user/{id}", method = RequestMethod.DELETE)
public ResponseEntity<JsonResult> delete (@PathVariable(value = "id") Integer id){
JsonResult r = new JsonResult();
try {
users.remove(id);
r.setResult(id);
r.setStatus("ok");
} catch (Exception e) {
r.setResult(e.getClass().getName() + ":" + e.getMessage());
r.setStatus("error");
e.printStackTrace();
}
return ResponseEntity.ok(r);
}
/**
* 根据id修改用户信息
* @param user
* @return
*/
@ApiOperation(value="更新信息", notes="根据url的id来指定更新用户信息")
@ApiImplicitParams({
@ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long",paramType = "path"),
@ApiImplicitParam(name = "user", value = "用户实体user", required = true, dataType = "User")
})
@RequestMapping(value = "user/{id}", method = RequestMethod.PUT)
public ResponseEntity<JsonResult> update (@PathVariable("id") Integer id, @RequestBody User user){
JsonResult r = new JsonResult();
try {
User u = users.get(id);
u.setUsername(user.getUsername());
u.setAge(user.getAge());
users.put(id, u);
r.setResult(u);
r.setStatus("ok");
} catch (Exception e) {
r.setResult(e.getClass().getName() + ":" + e.getMessage());
r.setStatus("error");
e.printStackTrace();
}
return ResponseEntity.ok(r);
}
@ApiIgnore//使用该注解忽略这个API
@RequestMapping(value = "/hi", method = RequestMethod.GET)
public String jsonTest() {
return " hi you!";
}
}
Json格式输出类 JsonResult.class
package cn.saytime.bean;
public class JsonResult {
private String status = null;
private Object result = null;
// Getter Setter
}
实体User.class
package cn.saytime.bean;
import java.util.Date;
/**
* @author zh
* @ClassName cn.saytime.bean.User
* @Description
*/
public class User {
private int id;
private String username;
private int age;
private Date ctm;
// Getter Setter
}
四、Swagger2文档
动SpringBoot项目,访问 http://localhost:8080/swagger-ui.html
五、Swagger注解
swagger通过注解表明该接口会生成文档,包括接口名、请求方法、参数、返回信息的等等。
@Api:修饰整个类,描述Controller的作用
@ApiOperation:描述一个类的一个方法,或者说一个接口
@ApiParam:单个参数描述
@ApiModel:用对象来接收参数
@ApiProperty:用对象接收参数时,描述对象的一个字段
@ApiResponse:HTTP响应其中1个描述
@ApiResponses:HTTP响应整体描述
@ApiIgnore:使用该注解忽略这个API
@ApiError :发生错误返回的信息
@ApiImplicitParam:一个请求参数
@ApiImplicitParams:多个请求参数
发布者:全栈程序员-用户IM,转载请注明出处:https://javaforall.cn/106489.html原文链接:https://javaforall.cn
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