在Angular Spring Security应用程序中找不到错误

Question

我用角度客户端编写了一个简单的 spring 安全项目。当我将数据从 angular 中的登录表单发送到 java 应用程序时，java 会向我返回我发送空的消息，但在角度中，在发送之前我检查它，它不是空的。

请帮忙，我想不出出了什么问题=(

日志： 2019-07-15 15:30:12.127 WARN 8156---[nio-8080-exec-2]. w. s. m. s. DefaultHandlerExceptionResolver：已解决[org.springframework.web.bind.方法中索引为0的参数验证失败：公共org.springframework.http.责任实体com.grokonez.jwtauthentication.controller.AuthRestAPIs.authenticate用户（com.grokonez.jwtauthentication.message.request.登录表单），有1个错误：[用户名字段中对象登录表单中的字段错误：拒绝值[null]；代码[NotBlank.loginForm.username，NotBlank.username，NotBlank.java.lang.字符串， NotBlank]；参数[org.springframework.context.support.默认消息源可解析：代码[loginForm.username，用户名]；参数[]；默认消息[用户名]]；默认消息 [не может быть пусто]] ]

爪哇代码：

  Model:

public class LoginForm {
    @NotBlank
    @Size(min=3, max = 60)
    private String username;

    @NotBlank
    @Size(min = 6, max = 40)
    private String password; ...

Controller:

@PostMapping("/signin")
    public ResponseEntity<?> authenticateUser(@Valid @RequestBody LoginForm loginRequest) {

        Authentication authentication = authenticationManager.authenticate(
                new UsernamePasswordAuthenticationToken(loginRequest.getUsername(), loginRequest.getPassword()));

        SecurityContextHolder.getContext().setAuthentication(authentication);

        String jwt = jwtProvider.generateJwtToken(authentication);
        UserDetails userDetails = (UserDetails) authentication.getPrincipal();
        return ResponseEntity.ok(new JwtResponse(jwt, userDetails.getUsername(), userDetails.getAuthorities()));
    }

角形零件:

服务：

   const httpOptions = {
  headers: new HttpHeaders({'Content-Type': 'application/json'})
};
@Injectable({
  providedIn: 'root'
})
export class AuthService {

  private loginUrl = 'http://localhost:8080/api/auth/signin';
  private registrationUrl = 'http://localhost:8080/api/auth/signup';

  constructor(private http: HttpClient) { }

  signUp(registrationInfo: RegistrationInfo): Observable<string> {
    return this.http.post<string>(this.registrationUrl, registrationInfo, httpOptions);
  }
  login(loginInfo: LoginInfo): Observable<JwtInfo> {
    console.log(loginInfo)
    return this.http.post<JwtInfo>(this.loginUrl, loginInfo, httpOptions);
  }

组件:

login(data) {
    this.loginInfo = new LoginInfo(data.userName, data.password);
    console.log(data.userName, data.password);
    this.authService.login(this.loginInfo).subscribe(
      (jwtResponse: JwtInfo) => {
        this.tokenStorage.saveToken(jwtResponse.accessToken);
        this.tokenStorage.saveUserName(jwtResponse.username);
        this.tokenStorage.saveAutorities(jwtResponse.authorities);

        this.username = this.tokenStorage.getUserName();
        this.authorities = this.tokenStorage.getAutorities();
        this.isLoggedIn = true;

        this.reloadPage();
      }, error => {
        this.warningMessage = error.error.message;
        this.isLoginFailed = true;
      }
      );
  }

有问题的日志:2019-07-15 15:30:12.127 WARN 8156-[nio-8080-exec-2]. w . s . m . s . defaulthandlerexception resolver:Resolved[org . spring framework . web . bind . methoargumentnotvalidexception:对方法中索引0处的参数验证失败:public org . spring framework . http . response entity com . grokonez . jwtauthentication . controller . authrestapis . authenticateuser(com . grokonez . jjcodes[not blank . loginform . username，NotBlank.username，NotBlank.java.lang.String，not blank]；arguments[org . spring framework . context . support . defaultmessagesourceresolvable:codes[loginform . username，username]；参数[]；默认消息[用户名]]；默认消息[не может быть пусто]] ]

Answer 1

看起来LoginForm模型带有小写的“username”，您正在发送console.log（data.username，data.password）；

用户名区分大小写的问题..将角度登录模型转换为小写(用户名)