java - 在 Spring Boot 中全局启用 CORS

Question

我尝试像这样在全局范围内启用 CORS:

@Configuration
@ComponentScan("com.example")
@EnableWebMvc
public class OriginFilter extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedMethods("GET", "POST", "PUT", "DELETE");
    }
}

我也试过这种方法:

@Configuration
public class OriginFilter implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD")
                .allowCredentials(true);
    }
}

但这些都不适合我。

单个类的注释 @CrossOrigin 有效，但我想在全局范围内启用 CORS。

Answer 1

您确实可以像您在回答中提到的那样定义自己的 Filter 。 Spring已经有了这样一个CorsFilter已经，所以你不必自己创建一个。只需将它注册为一个 bean，它就可以工作了:

@Bean
public CorsFilter corsFilter() {
    final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    final CorsConfiguration config = new CorsConfiguration();
    config.setAllowCredentials(true);
    // Don't do this in production, use a proper list  of allowed origins
    config.setAllowedOrigins(Collections.singletonList("*"));
    config.setAllowedHeaders(Arrays.asList("Origin", "Content-Type", "Accept"));
    config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "OPTIONS", "DELETE", "PATCH"));
    source.registerCorsConfiguration("/**", config);
    return new CorsFilter(source);
}