我正在使用Spring Boot开发简单的Rest API。我通过POST
方法创建用户。并通过删除DELETE
。但是当我使用DELETE
json服务器返回时Bad Request
。
创建用户:
ubuntu@ubuntu-pc:~$ curl -X POST -H "Content-type: application/json" -d '{"name": "developer", "email": "[email protected]"}' http://localhost:8080/add-user
"OK"
获取用户:
ubuntu@ubuntu-pc:~$ curl http://localhost:8080
[{"id":"ff80818176c9b9720176c9bdfd0c0002","name":"developer","email":"[email protected]"}]
使用json删除用户:
ubuntu@ubuntu-pc:~$ curl -X DELETE -H "Content-type: application/json" -d '{"id": "ff80818176c9b9720176c9bdfd0c0002"}' http://localhost:8080/del-id
{"timestamp":"2021-01-03T19:47:15.433+00:00","status":400,"error":"Bad Request","message":"","path":"/del-id"}
使用html查询删除用户:
ubuntu@ubuntu-pc:~$ curl -X DELETE http://localhost:8080/del-id?id=ff80818176c9b9720176c9bdfd0c0002
"OK"
ubuntu@ubuntu-pc:~$ curl http://localhost:8080
[]
UserRepository.java
public interface UserRepository extends CrudRepository<UserRecord, String> {
}
UserService.java
@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public List<UserRecord> getAllUsers() {
List<UserRecord> userRecords = new ArrayList<>();
userRepository.findAll().forEach(userRecords::add);
return userRecords;
}
public void addUser(UserRecord user) {
userRepository.save(user);
}
public void deleteUser(String id) {
userRepository.deleteById(id);
}
}
UserController.java
@RestController
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/")
public List<UserRecord> getAllUser() {
return userService.getAllUsers();
}
@RequestMapping(value="/add-user", method=RequestMethod.POST)
public HttpStatus addUser(@RequestBody UserRecord userRecord) {
userService.addUser(userRecord);
return HttpStatus.OK;
}
@RequestMapping(value="/del-id", method=RequestMethod.DELETE)
public HttpStatus deleteUser(@RequestParam("id") String id) {
userService.deleteUser(id);
return HttpStatus.OK;
}
}
jvm日志:
2021-01-03 22:47:15.429 WARN 30785 --- [nio-8080-exec-8] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'id' is not present]
我怎么了
@RequestParam注释旨在从URL派生值。当您使用requestBody传递ID时,不会将其填充到deleteUser函数中。
更改方法以也使用@RequestBody批注,或者像在html查询中一样通过路径参数传递id。
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