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Я разрабатываю api в spring boot, JWT и spring security, токен, который я отправляю в json тела, но когда я читаю тело запроса с ним, выдает мне ошибку в почтальоне: Отсутствует требуемое тело запроса: общедоступная организация.springframework.http.ResponseEntity. Не могли бы вы мне помочь, пожалуйста??

Это мое приложение SpringBootApplication:

 @SpringBootApplication public class JwtApplication {   public static void main(String[] args) {  SpringApplication.run(JwtApplication.class, args);  }   @EnableWebSecurity  @Configuration  class WebSecurityConfig extends WebSecurityConfigurerAdapter {   @Override  protected void configure(HttpSecurity http) throws Exception {  http.csrf().disable()  .addFilterAfter(new JWTAuthorizationFilter(), UsernamePasswordAuthenticationFilter.class)  .authorizeRequests().antMatchers(HttpMethod.POST, "/user").permitAll()  .antMatchers(HttpMethod.POST, "/Autenticacion").permitAll().anyRequest().authenticated();  }   } }   

это мой фильтр:

 public class JWTAuthorizationFilter extends OncePerRequestFilter {   private final String HEADER = "Authorization";  private final String SESSION = "sesion";  private final String PREFIX = "Bearer ";  private final String SECRET = "mySecretKey";  public static final long EXPIRATION_TIME = 900_000; // 15 mins   @Override  protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)  throws ServletException, IOException {  HttpServletRequest httpRequest = (HttpServletRequest) request;  HttpServletResponse httpResponse = (HttpServletResponse) response;  try {  boolean resultado_checktoken = checkJWTToken(httpRequest, httpResponse);  if (resultado_checktoken) {  Claims claims = validateToken(request);  if (claims.get("authorities") != null) {  setUpSpringAuthentication(claims);  } else {  SecurityContextHolder.clearContext();  }  } else {  SecurityContextHolder.clearContext();  }  chain.doFilter(request, response);  } catch (ExpiredJwtException | UnsupportedJwtException | MalformedJwtException e) {  response.setStatus(HttpServletResponse.SC_FORBIDDEN);  ((HttpServletResponse) response).sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage());  return;  }  System.out.println("supuestamente no hubo problemas");  }   private Claims validateToken(HttpServletRequest request) {  //String jwtToken = request.getHeader(HEADER).replace(PREFIX, "");  String jwtToken="";  try {  jwtToken = this.getBodySession(request);  } catch (IOException e) {  e.printStackTrace();  };  return Jwts.parser().setSigningKey(SECRET.getBytes()).parseClaimsJws(jwtToken).getBody();  }    /**  * Authentication method in Spring flow  *   * @param claims  */  private void setUpSpringAuthentication(Claims claims) {  @SuppressWarnings("unchecked")  Listlt;Stringgt; authorities = (Listlt;Stringgt;) claims.get("authorities");  UsernamePasswordAuthenticationToken auth = new UsernamePasswordAuthenticationToken(claims.getSubject(), null,  authorities.stream().map(SimpleGrantedAuthority::new).collect(Collectors.toList()));  SecurityContextHolder.getContext().setAuthentication(auth);  }   private boolean checkJWTToken(HttpServletRequest request, HttpServletResponse res) throws IOException {  String authenticationHeader = "";  authenticationHeader = this.getBodySession(request);  if (authenticationHeader == null || !authenticationHeader.startsWith(PREFIX))  return false;  return true;  }   public String getBodySession(HttpServletRequest request) throws IOException {  String sbody = "";  HttpServletRequest servletRequest = new ContentCachingRequestWrapper(request);  //servletRequest.getParameterMap();  sbody = servletRequest.getReader().lines().collect(Collectors.joining());  String Field = SESSION;  String scampo = "";  if (sbody.contains(Field)) {  scampo = sbody.substring(sbody.indexOf(Field), sbody.indexOf("n", sbody.indexOf(Field)))  .replace(Field   "": "", "").replace(""", "").replace(",", "");  }  System.out.println("sbody: "   sbody   " sesion: "   scampo);  return scampo;  }   public String getBodySession_2021_11_23(HttpServletRequest request) throws IOException {  String body = null;  StringBuilder stringBuilder = new StringBuilder();  BufferedReader bufferedReader = null;  try {  InputStream inputStream = request.getInputStream();  if (inputStream != null) {  bufferedReader = new BufferedReader(new InputStreamReader(inputStream));  char[] charBuffer = new char[128];  int bytesRead = -1;  while ((bytesRead = bufferedReader.read(charBuffer)) gt; 0) {  stringBuilder.append(charBuffer, 0, bytesRead);  }  } else {  stringBuilder.append("");  }  body = stringBuilder.toString();  String Field = "sesion";  String scampo = "";  if (body.contains(Field)) {  scampo = body.substring(body.indexOf(Field), body.indexOf("n", body.indexOf(Field)))  .replace(Field   "": "", "").replace(""", "").replace(",", "");  }  System.out.println("sbody: "   body   " sesion: "   scampo);  return scampo;  } catch (IOException ex) {  throw ex;  }  }