我正在尝试使用Java SpringBoot设置一个简单的WebSocket服务器，虽然我已经定义了CORS配置(以及SockJS的STOP)以允许从本地主机：8080(以及之前的星号)进行起源，但我仍然看到标题中缺少‘Access-Control-Allow-Origin’，并且我得到了403状态代码错误。
在客户端，我有一个简单的SockJS设置，通常通过普通的HTML和JS连接到WebSocket。以下是我的Java代码(请注意，我曾多次尝试定义CORS允许起源)……
WebSocket Broker配置：

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfiguration implements WebSocketMessageBrokerConfigurer {
  @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) {
      registry.enableSimpleBroker("/topic");
      registry.setApplicationDestinationPrefixes("/app");
    }

  @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
      registry.addEndpoint("/stomp")
        .setAllowedOrigins("http://localhost:8080")
        .setAllowedOriginPatterns("*")
        .withSockJS();
    }
}

和另一个类，我在其中定义了SpringBoot的CORS配置和安全规则(由于目前没有更好的名称，我将这个类称为WebSocketSecurity)：

@Configuration
@EnableWebSecurity
public class WebSocketSecurity {
  private CorsConfiguration corsConfiguration() {
    CorsConfiguration corsConfig = new CorsConfiguration();
    corsConfig.addAllowedOrigin("http://localhost:8080");
    corsConfig.addAllowedHeader("*");
    corsConfig.addAllowedMethod(HttpMethod.GET);
    corsConfig.addAllowedMethod(HttpMethod.POST);
    corsConfig.applyPermitDefaultValues();
    return corsConfig;
  }

  @Bean
  public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
    http.cors().configurationSource(request -> corsConfiguration());
    http.headers().frameOptions().sameOrigin();
    return http.build();
  }

  public WebSecurityCustomizer webSecurityCustomizer() {
    return (web) -> web.ignoring().antMatchers("/images/**", "/js/**");
  }

  @Bean
  public WebMvcConfigurer corsConfigurer() {
    return new WebMvcConfigurer() {
      @Override
      public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
          .allowedOrigins("http://localhost:8080")
          .allowedMethods("GET", "POST", "PUT", "PATCH", "DELETE", "HEAD")
          .allowedHeaders("*");
          //.allowCredentials(true); // this is disabled if CORS allow origin is set to "*"
      }
    };
  }

  @Bean
  public CookieSameSiteSupplier cookieSameSiteSupplier(){
    return CookieSameSiteSupplier.ofNone();
  }
}

我的pom.xml具有以下依赖项和构建配置：

<properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-websocket</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-reactor-netty</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${project.parent.version}</version>
            </plugin>
        </plugins>
    </build>

SpringBoot的主启动类：

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class })
public class WSExampleApplication {

    public static void main(String[] args) {
        SpringApplication.run(WSExampleApplication.class, args);
    }

}

以下是我在前端使用的SockJS部分：

function connect(event) {
    username = document.querySelector('#name').value.trim();
    if(username) {
        var socket = new SockJS('http://localhost:8080/stomp');
        stompClient = Stomp.over(socket);
        stompClient.connect({}, onConnected, onError);
    }
    event.preventDefault();
}

function onConnected() {
    stompClient.subscribe('/topic/public', onMessageReceived); // Subscribe to the Public Topic
    stompClient.send("/app/chat.register", // Tell your username to the server
        {},
        JSON.stringify({sender: username, type: 'JOIN'})
    )
}

function onError(error) {
    connectingElement.textContent = 'Could not connect to WebSocket server!';
    connectingElement.style.color = 'red';
}

CORS error in browser consoleCORS error in browser network tab
CORS/WebSocket配置有问题吗？或者我需要在SockJS的前端进行一些更改吗？
我使用的是Spring Boot版本2.7.4和Java版本18.0.2.1，我使用的是Tomcat。