java 无法读取 HTTP 消息。缺少所需的请求正文
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Failed to read HTTP message. Required request body is missing
提问by Andrew
I have faced with a problem that I can't get my object on server side. I am getting this error:
我遇到了无法在服务器端获取对象的问题。我收到此错误：
128870 [http-apr-8080-exec-1] WARN org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public com.webserverconfig.user.entity.User com.webserverconfig.user.controller.UserController.login(com.webserverconfig.user.entity.User)
I am trying to send object on server side using GET request. I want to use this object just to verify fields on it. (I am doing simple user login method and i want to check userNameand userPassword).
我正在尝试使用 GET 请求在服务器端发送对象。我想使用这个对象来验证它的字段。（我正在做简单的用户登录方法，我想检查userName和userPassword）。
Here is my code on server side: Request:
这是我在服务器端的代码：请求：
@RequestMapping(value = "/login", method = RequestMethod.GET)
@ResponseStatus(value = HttpStatus.ACCEPTED)
public User login(@RequestBody User user) {
userValidator.validateUserLogin(user);
securityService.autoLogin(user.getUserName(), user.getUserPassword());
return user;
}
Entity user:
实体用户：
@Entity
@Table(name = "Users")
public class User {
public User() {
}
@Id
@GeneratedValue(generator = "increment")
@GenericGenerator(name = "increment", strategy = "increment")
@Column(name = "Id", unique = true, nullable = false)
private long id;
@Column(name = "userName", nullable = false)
private String userName;
@Column(name = "userPassword", nullable = false)
private String userPassword;
@Transient
private String confirmPassword;
public long getId() {
return id;
}
public String getUserName() {
return userName;
}
public String getUserPassword() {
return userPassword;
}
public String getConfirmPassword() {
return confirmPassword;
}
public void setId(long id) {
this.id = id;
}
public void setUserName(String userName) {
this.userName = userName;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public void setConfirmPassword(String confirmPassword) {
this.confirmPassword = confirmPassword;
}
}
Client side code:
客户端代码：
private class LoginUserTask extends AsyncTask<Void, Void, User> {
@Override
protected User doInBackground(Void... voids) {
restTemplate = new RestTemplate();
restTemplate.getMessageConverters().add(new MappingHymanson2HttpMessageConverter());
User user = new User(userName, userPassword);
return restTemplate.getForObject(URL.getUserLogin(), User.class, user);
}
@Override
protected void onPostExecute(User user) {
responseEntity = restTemplate.getForEntity(URL.getUserLogin(), String.class);
HttpStatus responseStatus = responseEntity.getStatusCode();
if(responseStatus.equals(HttpStatus.ACCEPTED)){
view.makeToast("User login completed " + user.getUserName());
} else {
view.makeToast("User login or password is not correct");
}
}
}
Am I missing something? Can anybody help with this please ?
我错过了什么吗？有人可以帮忙吗？
回答by Itzik Shachar
You have set a @RequestBody annotation with a User object as an input parameter. In this case, you have to use POST method along with a User object in the body of the request.
您已使用 User 对象作为输入参数设置了 @RequestBody 注释。在这种情况下，您必须使用 POST 方法以及请求正文中的 User 对象。
