此版本仍在开发中，尚未被视为稳定版本。对于最新的稳定版本，请使用 Spring Security 6.3.3！spring-doc.cn

此版本仍在开发中，尚未被视为稳定版本。对于最新的稳定版本，请使用 Spring Security 6.3.3！spring-doc.cn

Spring Framework 为 CORS 提供了一流的支持。 CORS 必须在 Spring Security 之前处理，因为飞行前请求不包含任何 cookie（即 ）。 如果请求不包含任何 cookie，并且 Spring Security 是第一个，则请求将确定用户未经过身份验证（因为请求中没有 cookie）并拒绝它。JSESSIONIDspring-doc.cn

确保首先处理 CORS 的最简单方法是使用 . 用户可以通过提供 .请注意，Spring Security 仅在存在实例时自动配置 CORS。 例如，以下内容将在 Spring Security 中集成 CORS 支持：CorsFilterCorsFilterCorsConfigurationSourceUrlBasedCorsConfigurationSourcespring-doc.cn

@Bean
UrlBasedCorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration configuration = new CorsConfiguration();
    configuration.setAllowedOrigins(Arrays.asList("https://example.com"));
    configuration.setAllowedMethods(Arrays.asList("GET","POST"));
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", configuration);
    return source;
}
@Bean
fun corsConfigurationSource(): UrlBasedCorsConfigurationSource {
    val configuration = CorsConfiguration()
    configuration.allowedOrigins = listOf("https://example.com")
    configuration.allowedMethods = listOf("GET", "POST")
    val source = UrlBasedCorsConfigurationSource()
    source.registerCorsConfiguration("/**", configuration)
    return source
}

下面的清单在 XML 中执行相同的操作：spring-doc.cn

<http>
	<cors configuration-source-ref="corsSource"/>
	...
</http>
<b:bean id="corsSource" class="org.springframework.web.cors.UrlBasedCorsConfigurationSource">
	...
</b:bean>

如果使用 Spring MVC 的 CORS 支持，则可以省略指定，并且 Spring Security 使用提供给 Spring MVC 的 CORS 配置：CorsConfigurationSourcespring-doc.cn

@Configuration
@EnableWebSecurity
public class WebSecurityConfig {

	@Bean
	public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
		http
			// if Spring MVC is on classpath and no CorsConfigurationSource is provided,
			// Spring Security will use CORS configuration provided to Spring MVC
			.cors(withDefaults())
			...
		return http.build();
	}
}
@Configuration
@EnableWebSecurity
open class WebSecurityConfig {
    @Bean
    open fun filterChain(http: HttpSecurity): SecurityFilterChain {
        http {
            // if Spring MVC is on classpath and no CorsConfigurationSource is provided,
            // Spring Security will use CORS configuration provided to Spring MVC
            cors { }
            // ...
        }
        return http.build()
    }
}

下面的清单在 XML 中执行相同的操作：spring-doc.cn

<http>
	<!-- Default to Spring MVC's CORS configuration -->
	<cors />
	...
</http>

如果您有多个 bean，则 Spring Security 不会自动为您配置 CORS 支持，这是因为它无法决定使用哪一个。 如果要为每个 指定 different ，可以将其直接传递到 DSL 中。CorsConfigurationSourceCorsConfigurationSourceSecurityFilterChain.cors()spring-doc.cn

@Configuration
@EnableWebSecurity
public class WebSecurityConfig {

	@Bean
	@Order(0)
	public SecurityFilterChain apiFilterChain(HttpSecurity http) throws Exception {
		http
			.securityMatcher("/api/**")
			.cors((cors) -> cors
				.configurationSource(apiConfigurationSource())
			)
			...
		return http.build();
	}

	@Bean
	@Order(1)
	public SecurityFilterChain myOtherFilterChain(HttpSecurity http) throws Exception {
		http
			.cors((cors) -> cors
				.configurationSource(myWebsiteConfigurationSource())
			)
			...
		return http.build();
	}

	UrlBasedCorsConfigurationSource apiConfigurationSource() {
		CorsConfiguration configuration = new CorsConfiguration();
		configuration.setAllowedOrigins(Arrays.asList("https://api.example.com"));
		configuration.setAllowedMethods(Arrays.asList("GET","POST"));
		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
		source.registerCorsConfiguration("/**", configuration);
		return source;
	}

	UrlBasedCorsConfigurationSource myWebsiteConfigurationSource() {
		CorsConfiguration configuration = new CorsConfiguration();
		configuration.setAllowedOrigins(Arrays.asList("https://example.com"));
		configuration.setAllowedMethods(Arrays.asList("GET","POST"));
		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
		source.registerCorsConfiguration("/**", configuration);
		return source;
	}

}
@Bean
fun corsConfigurationSource(): UrlBasedCorsConfigurationSource {
    val configuration = CorsConfiguration()
    configuration.allowedOrigins = listOf("https://example.com")
    configuration.allowedMethods = listOf("GET", "POST")
    val source = UrlBasedCorsConfigurationSource()
    source.registerCorsConfiguration("/**", configuration)
    return source
}