Java APIRest-Postman错误400 GET方法和JWT的错误请求

Question

当我通过postman登录到API时，会生成一个JWT。通过这个jwt，我为特定用户创建数据。但是当我与这个用户和他的JWT连接时，当我用连接的用户的JWT从POSTMAN发出GET请求时，我得到一个400错误，表示请求不好。我不明白为什么。我的Tomcat服务器端口不是8080。。。只需使用GET方法吼叫我的控制器：

    @RestController
    @RequestMapping("/weights")
    public class WeightRecordController {
    
       
        @Autowired
        AppUserRepository appUserRepository;
    
        @Autowired
        PersonRepository personRepository;
    
        private final Logger logger = LoggerFactory.getLogger(WeightRecordController.class);
    
        public Long getAppUserConnectedId(Principal principal) {
            if (!(principal instanceof UsernamePasswordAuthenticationToken)) {
                throw new RuntimeException(("User not found"));
            }
            logger.info("USER IS PRESENT IN DATABASE FROM FUNCTION 'getAppUserConnectedId()'");
            UsernamePasswordAuthenticationToken token = (UsernamePasswordAuthenticationToken) principal;
            AppUser appUserFinded = appUserRepository.findByAppUsername(token.getName());
            return appUserFinded.getIdUser();
        }
    
        @GetMapping("/all")
        public ResponseEntity<List<WeightRecord>> getAllWeights(@RequestParam Principal principal) {
            logger.info("GET /weights/all");
            Long appUserConnectedId = this.getAppUserConnectedId(principal);
            Person personToShow = personRepository.findById(appUserConnectedId).orElseThrow();
            return new ResponseEntity<List<WeightRecord>>(personToShow.getWeightsList(), HttpStatus.OK);
        }
}

Answer 1

如果你在tomcat上使用8080端口，为什么在Postman上使用7777端口？

此外，请尝试在您的Spring启动配置logging.level.org.springframework.web=DEBUG中添加以下属性，您将获得在控制台日志上收到400个错误请求的确切原因。